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Title: Measurement of the Branching Fraction For the Semileptonic Decay D 0 ( + ) π - ( 0 ) μ + ν μ and Test of Lepton Flavor Universality

Abstract

Using a data sample corresponding to an integrated luminosity of $$2.93\text{ }\text{ }{\mathrm{fb}}^{{-}1}$$ taken at a center-of-mass energy of 3.773 GeV with the BESIII detector operated at the BEPCII collider, we perform an analysis of the semileptonic decays $${D}^{0(+)}{\rightarrow}{{\pi}}^{{-}(0)}{{\mu}}^{+}{{\nu}}_{{\mu}}$$. The branching fractions of $${D}^{0}{\rightarrow}{{\pi}}^{{-}}{{\mu}}^{+}{{\nu}}_{{\mu}}$$ and $${D}^{+}{\rightarrow}{{\pi}}^{0}{{\mu}}^{+}{{\nu}}_{{\mu}}$$ are measured to be $$(0.272\pm{}0.00{8}_{\mathrm{stat}}\pm{}0.00{6}_{\mathrm{syst}})%$$ and $$(0.350\pm{}0.01{1}_{\mathrm{stat}}\pm{}0.01{0}_{\mathrm{syst}})%$$, respectively, where the former is of much improved precision compared to previous results and the latter is determined for the first time. Using these results along with previous BESIII measurements of $${D}^{0(+)}{\rightarrow}{{\pi}}^{{-}(0)}{e}^{+}{{\nu}}_{e}$$, we calculate the branching fraction ratios to be $${\mathcal{R}}^{0}{\equiv}{\mathcal{B}}_{{D}^{0}{\rightarrow}{{\pi}}^{{-}}{{\mu}}^{+}{{\nu}}_{{\mu}}}/{\mathcal{B}}_{{D}^{0}{\rightarrow}{{\pi}}^{{-}}{e}^{+}{{\nu}}_{e}}=0.922\pm{}0.03{0}_{\mathrm{stat}}\pm{}0.02{2}_{\mathrm{syst}}$$ and $${\mathcal{R}}^{+}{\equiv}{\mathcal{B}}_{{D}^{+}{\rightarrow}{{\pi}}^{0}{{\mu}}^{+}{{\nu}}_{{\mu}}}/{\mathcal{B}}_{{D}^{+}{\rightarrow}{{\pi}}^{0}{e}^{+}{{\nu}}_{e}}=0.964\pm{}0.03{7}_{\mathrm{stat}}\pm{}0.02{6}_{\mathrm{syst}}$$, which are compatible with the theoretical expectation of lepton flavor universality within $$1.7{\sigma}$$ and $$0.5{\sigma}$$, respectively. We also examine the branching fraction ratios in different four-momentum transfer square regions, and find no significant deviations from the standard model predictions.

Authors:
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Publication Date:
Research Org.:
Indiana Univ., Bloomington, IN (United States); Carnegie Mellon Univ., Pittsburgh, PA (United States); Univ. of Hawaii, Honolulu, HI (United States); Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
BESIII Collaboration
OSTI Identifier:
1479171
Alternate Identifier(s):
OSTI ID: 1504140
Grant/Contract Number:  
FG02-05ER41374; SC0010118; SC0010504; SC0012069
Resource Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Name: Physical Review Letters Journal Volume: 121 Journal Issue: 17; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; branching fraction; leptonic, semileptonic & radiative decays; charmed mesons; flavor symmetries; lepton colliders

Citation Formats

Ablikim, M., Achasov, M. N., Ahmed, S., Albrecht, M., Amoroso, A., An, F. F., An, Q., Bai, J. Z., Bai, Y., Bakina, O., Baldini Ferroli, R., Ban, Y., Bennett, D. W., Bennett, J. V., Berger, N., Bertani, M., Bettoni, D., Bian, J. M., Bianchi, F., Boger, E., Boyko, I., Briere, R. A., Cai, H., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chai, J., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, P. L., Chen, S. J., Chen, X. R., Chen, Y. B., Chu, X. K., Cibinetto, G., Dai, H. L., Dai, J. P., Dbeyssi, A., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, M., De Mori, F., Ding, Y., Dong, C., Dong, J., Dong, L. Y., Dong, M. Y., Dou, Z. L., Du, S. X., Duan, P. F., Fang, J., Fang, S. S., Fang, Y., Farinelli, R., Fava, L., Fegan, S., Feldbauer, F., Felici, G., Feng, C. Q., Fioravanti, E., Fritsch, M., Fu, C. D., Gao, Q., Gao, X. L., Gao, Y., Gao, Y. G., Gao, Z., Garzia, I., Goetzen, K., Gong, L., Gong, W. X., Gradl, W., Greco, M., Gu, M. H., Gu, Y. T., Guo, A. Q., Guo, R. P., Guo, Y. P., Haddadi, Z., Han, S., Hao, X. Q., Harris, F. A., He, K. L., He, X. Q., Heinsius, F. H., Held, T., Heng, Y. K., Holtmann, T., Hou, Z. L., Hu, H. M., Hu, T., Hu, Y., Huang, G. S., Huang, J. S., Huang, X. T., Huang, X. Z., Huang, Z. L., Hussain, T., Ikegami Andersson, W., Ji, Q., Ji, Q. P., Ji, X. B., Ji, X. L., Jiang, X. S., Jiang, X. Y., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jin, Y., Johansson, T., Julin, A., Kalantar-Nayestanaki, N., Kang, X. L., Kang, X. S., Kavatsyuk, M., Ke, B. C., Khan, T., Khoukaz, A., Kiese, P., Kliemt, R., Koch, L., Kolcu, O. B., Kopf, B., Kornicer, M., Kuemmel, M., Kuessner, M., Kuhlmann, M., Kupsc, A., Kühn, W., Lange, J. S., Lara, M., Larin, P., Lavezzi, L., Leithoff, H., Leng, C., Li, C., Li, Cheng, Li, D. M., Li, F., Li, F. Y., Li, G., Li, H. B., Li, H. J., Li, J. C., Li, Jin, Li, K. J., Li, Kang, Li, Ke, Li, Lei, Li, P. L., Li, P. R., Li, Q. Y., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, Z. B., Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Lin, D. X., Liu, B., Liu, B. J., Liu, C. X., Liu, D., Liu, F. H., Liu, Fang, Liu, Feng, Liu, H. B., Liu, H. M., Liu, Huanhuan, Liu, Huihui, Liu, J. B., Liu, J. P., Liu, J. Y., Liu, K., Liu, K. Y., Liu, Ke, Liu, L. D., Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, Y. B., Liu, Z. A., Liu, Zhiqing, Long, Y. F., Lou, X. C., Lu, H. J., Lu, J. G., Lu, Y., Lu, Y. P., Luo, C. L., Luo, M. X., Luo, X. L., Lyu, X. R., Ma, F. C., Ma, H. L., Ma, L. L., Ma, M. M., Ma, Q. M., Ma, T., Ma, X. N., Ma, X. Y., Ma, Y. M., Maas, F. E., Maggiora, M., Malik, Q. A., Mao, Y. J., Mao, Z. P., Marcello, S., Meng, Z. X., Messchendorp, J. G., Mezzadri, G., Min, J., Min, T. J., Mitchell, R. E., Mo, X. H., Mo, Y. J., Morales Morales, C., Muchnoi, N. Yu., Muramatsu, H., Musiol, P., Mustafa, A., Nefedov, Y., Nerling, F., Nikolaev, I. B., Ning, Z., Nisar, S., Niu, S. L., Niu, X. Y., Olsen, S. L., Ouyang, Q., Pacetti, S., Pan, Y., Papenbrock, M., Patteri, P., Pelizaeus, M., Pellegrino, J., Peng, H. P., Peters, K., Pettersson, J., Ping, J. L., Ping, R. G., Pitka, A., Poling, R., Prasad, V., Qi, H. R., Qi, M., Qian, S., Qiao, C. F., Qin, N., Qin, X. S., Qin, Z. H., Qiu, J. F., Rashid, K. H., Redmer, C. F., Richter, M., Ripka, M., Rolo, M., Rong, G., Rosner, Ch., Sarantsev, A., Savrié, M., Schnier, C., Schoenning, K., Shan, W., Shao, M., Shen, C. P., Shen, P. X., Shen, X. Y., Sheng, H. Y., Song, J. J., Song, W. M., Song, X. Y., Sosio, S., Sowa, C., Spataro, S., Sun, G. X., Sun, J. F., Sun, L., Sun, S. S., Sun, X. H., Sun, Y. J., Sun, Y. K., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, G. Y., Tang, X., Tapan, I., Tiemens, M., Tsednee, B., Uman, I., Varner, G. S., Wang, B., Wang, B. L., Wang, D., Wang, D. Y., Wang, Dan, Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, Meng, Wang, P., Wang, P. L., Wang, W. P., Wang, X. F., Wang, Y., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wang, Zongyuan, Weber, T., Wei, D. H., Weidenkaff, P., Wen, S. P., Wiedner, U., Wolke, M., Wu, L. H., Wu, L. J., Wu, Z., Xia, L., Xia, Y., Xiao, D., Xiao, H., Xiao, Y. J., Xiao, Z. J., Xie, Y. G., Xie, Y. H., Xiong, X. A., Xiu, Q. L., Xu, G. F., Xu, J. J., Xu, L., Xu, Q. J., Xu, Q. N., Xu, X. P., Yan, L., Yan, W. B., Yan, W. C., Yan, Y. H., Yang, H. J., Yang, H. X., Yang, L., Yang, Y. H., Yang, Y. X., Ye, M., Ye, M. H., Yin, J. H., You, Z. Y., Yu, B. X., Yu, C. X., Yu, J. S., Yuan, C. Z., Yuan, Y., Yuncu, A., Zafar, A. A., Zeng, Y., Zeng, Z., Zhang, B. X., Zhang, B. Y., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J., Zhang, J. L., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Zhang, K., Zhang, L., Zhang, S. Q., Zhang, X. Y., Zhang, Y. H., Zhang, Y. T., Zhang, Yang, Zhang, Yao, Zhang, Yu, Zhang, Z. H., Zhang, Z. P., Zhang, Z. Y., Zhao, G., Zhao, J. W., Zhao, J. Y., Zhao, J. Z., Zhao, Lei, Zhao, Ling, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, T. C., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhou, L., Zhou, X., Zhou, X. K., Zhou, X. R., Zhou, X. Y., Zhou, Y. X., Zhu, J., Zhu, J., Zhu, K., Zhu, K. J., Zhu, S., Zhu, S. H., Zhu, X. L., Zhu, Y. C., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., Zou, J. H., and BESIII Collaboration. Measurement of the Branching Fraction For the Semileptonic Decay D 0 ( + ) → π - ( 0 ) μ + ν μ and Test of Lepton Flavor Universality. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.121.171803.
Ablikim, M., Achasov, M. N., Ahmed, S., Albrecht, M., Amoroso, A., An, F. F., An, Q., Bai, J. Z., Bai, Y., Bakina, O., Baldini Ferroli, R., Ban, Y., Bennett, D. W., Bennett, J. V., Berger, N., Bertani, M., Bettoni, D., Bian, J. M., Bianchi, F., Boger, E., Boyko, I., Briere, R. A., Cai, H., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chai, J., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, P. L., Chen, S. J., Chen, X. R., Chen, Y. B., Chu, X. K., Cibinetto, G., Dai, H. L., Dai, J. P., Dbeyssi, A., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, M., De Mori, F., Ding, Y., Dong, C., Dong, J., Dong, L. Y., Dong, M. Y., Dou, Z. L., Du, S. X., Duan, P. F., Fang, J., Fang, S. S., Fang, Y., Farinelli, R., Fava, L., Fegan, S., Feldbauer, F., Felici, G., Feng, C. Q., Fioravanti, E., Fritsch, M., Fu, C. D., Gao, Q., Gao, X. L., Gao, Y., Gao, Y. G., Gao, Z., Garzia, I., Goetzen, K., Gong, L., Gong, W. X., Gradl, W., Greco, M., Gu, M. H., Gu, Y. T., Guo, A. Q., Guo, R. P., Guo, Y. P., Haddadi, Z., Han, S., Hao, X. Q., Harris, F. A., He, K. L., He, X. Q., Heinsius, F. H., Held, T., Heng, Y. K., Holtmann, T., Hou, Z. L., Hu, H. M., Hu, T., Hu, Y., Huang, G. S., Huang, J. S., Huang, X. T., Huang, X. Z., Huang, Z. L., Hussain, T., Ikegami Andersson, W., Ji, Q., Ji, Q. P., Ji, X. B., Ji, X. L., Jiang, X. S., Jiang, X. Y., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jin, Y., Johansson, T., Julin, A., Kalantar-Nayestanaki, N., Kang, X. L., Kang, X. S., Kavatsyuk, M., Ke, B. C., Khan, T., Khoukaz, A., Kiese, P., Kliemt, R., Koch, L., Kolcu, O. B., Kopf, B., Kornicer, M., Kuemmel, M., Kuessner, M., Kuhlmann, M., Kupsc, A., Kühn, W., Lange, J. S., Lara, M., Larin, P., Lavezzi, L., Leithoff, H., Leng, C., Li, C., Li, Cheng, Li, D. M., Li, F., Li, F. Y., Li, G., Li, H. B., Li, H. J., Li, J. C., Li, Jin, Li, K. J., Li, Kang, Li, Ke, Li, Lei, Li, P. L., Li, P. R., Li, Q. Y., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, Z. B., Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Lin, D. X., Liu, B., Liu, B. J., Liu, C. X., Liu, D., Liu, F. H., Liu, Fang, Liu, Feng, Liu, H. B., Liu, H. M., Liu, Huanhuan, Liu, Huihui, Liu, J. B., Liu, J. P., Liu, J. Y., Liu, K., Liu, K. Y., Liu, Ke, Liu, L. D., Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, Y. B., Liu, Z. A., Liu, Zhiqing, Long, Y. F., Lou, X. C., Lu, H. J., Lu, J. G., Lu, Y., Lu, Y. P., Luo, C. L., Luo, M. X., Luo, X. L., Lyu, X. R., Ma, F. C., Ma, H. L., Ma, L. L., Ma, M. M., Ma, Q. M., Ma, T., Ma, X. N., Ma, X. Y., Ma, Y. M., Maas, F. E., Maggiora, M., Malik, Q. A., Mao, Y. J., Mao, Z. P., Marcello, S., Meng, Z. X., Messchendorp, J. G., Mezzadri, G., Min, J., Min, T. J., Mitchell, R. E., Mo, X. H., Mo, Y. J., Morales Morales, C., Muchnoi, N. Yu., Muramatsu, H., Musiol, P., Mustafa, A., Nefedov, Y., Nerling, F., Nikolaev, I. B., Ning, Z., Nisar, S., Niu, S. L., Niu, X. Y., Olsen, S. L., Ouyang, Q., Pacetti, S., Pan, Y., Papenbrock, M., Patteri, P., Pelizaeus, M., Pellegrino, J., Peng, H. P., Peters, K., Pettersson, J., Ping, J. L., Ping, R. G., Pitka, A., Poling, R., Prasad, V., Qi, H. R., Qi, M., Qian, S., Qiao, C. F., Qin, N., Qin, X. S., Qin, Z. H., Qiu, J. F., Rashid, K. H., Redmer, C. F., Richter, M., Ripka, M., Rolo, M., Rong, G., Rosner, Ch., Sarantsev, A., Savrié, M., Schnier, C., Schoenning, K., Shan, W., Shao, M., Shen, C. P., Shen, P. X., Shen, X. Y., Sheng, H. Y., Song, J. J., Song, W. M., Song, X. Y., Sosio, S., Sowa, C., Spataro, S., Sun, G. X., Sun, J. F., Sun, L., Sun, S. S., Sun, X. H., Sun, Y. J., Sun, Y. K., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, G. Y., Tang, X., Tapan, I., Tiemens, M., Tsednee, B., Uman, I., Varner, G. S., Wang, B., Wang, B. L., Wang, D., Wang, D. Y., Wang, Dan, Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, Meng, Wang, P., Wang, P. L., Wang, W. P., Wang, X. F., Wang, Y., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wang, Zongyuan, Weber, T., Wei, D. H., Weidenkaff, P., Wen, S. P., Wiedner, U., Wolke, M., Wu, L. H., Wu, L. J., Wu, Z., Xia, L., Xia, Y., Xiao, D., Xiao, H., Xiao, Y. J., Xiao, Z. J., Xie, Y. G., Xie, Y. H., Xiong, X. A., Xiu, Q. L., Xu, G. F., Xu, J. J., Xu, L., Xu, Q. J., Xu, Q. N., Xu, X. P., Yan, L., Yan, W. B., Yan, W. C., Yan, Y. H., Yang, H. J., Yang, H. X., Yang, L., Yang, Y. H., Yang, Y. X., Ye, M., Ye, M. H., Yin, J. H., You, Z. Y., Yu, B. X., Yu, C. X., Yu, J. S., Yuan, C. Z., Yuan, Y., Yuncu, A., Zafar, A. A., Zeng, Y., Zeng, Z., Zhang, B. X., Zhang, B. Y., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J., Zhang, J. L., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Zhang, K., Zhang, L., Zhang, S. Q., Zhang, X. Y., Zhang, Y. H., Zhang, Y. T., Zhang, Yang, Zhang, Yao, Zhang, Yu, Zhang, Z. H., Zhang, Z. P., Zhang, Z. Y., Zhao, G., Zhao, J. W., Zhao, J. Y., Zhao, J. Z., Zhao, Lei, Zhao, Ling, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, T. C., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhou, L., Zhou, X., Zhou, X. K., Zhou, X. R., Zhou, X. Y., Zhou, Y. X., Zhu, J., Zhu, J., Zhu, K., Zhu, K. J., Zhu, S., Zhu, S. H., Zhu, X. L., Zhu, Y. C., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., Zou, J. H., & BESIII Collaboration. Measurement of the Branching Fraction For the Semileptonic Decay D 0 ( + ) → π - ( 0 ) μ + ν μ and Test of Lepton Flavor Universality. United States. doi:10.1103/PhysRevLett.121.171803.
Ablikim, M., Achasov, M. N., Ahmed, S., Albrecht, M., Amoroso, A., An, F. F., An, Q., Bai, J. Z., Bai, Y., Bakina, O., Baldini Ferroli, R., Ban, Y., Bennett, D. W., Bennett, J. V., Berger, N., Bertani, M., Bettoni, D., Bian, J. M., Bianchi, F., Boger, E., Boyko, I., Briere, R. A., Cai, H., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chai, J., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, P. L., Chen, S. J., Chen, X. R., Chen, Y. B., Chu, X. K., Cibinetto, G., Dai, H. L., Dai, J. P., Dbeyssi, A., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, M., De Mori, F., Ding, Y., Dong, C., Dong, J., Dong, L. Y., Dong, M. Y., Dou, Z. L., Du, S. X., Duan, P. F., Fang, J., Fang, S. S., Fang, Y., Farinelli, R., Fava, L., Fegan, S., Feldbauer, F., Felici, G., Feng, C. Q., Fioravanti, E., Fritsch, M., Fu, C. D., Gao, Q., Gao, X. L., Gao, Y., Gao, Y. G., Gao, Z., Garzia, I., Goetzen, K., Gong, L., Gong, W. X., Gradl, W., Greco, M., Gu, M. H., Gu, Y. T., Guo, A. Q., Guo, R. P., Guo, Y. P., Haddadi, Z., Han, S., Hao, X. Q., Harris, F. A., He, K. L., He, X. Q., Heinsius, F. H., Held, T., Heng, Y. K., Holtmann, T., Hou, Z. L., Hu, H. M., Hu, T., Hu, Y., Huang, G. S., Huang, J. S., Huang, X. T., Huang, X. Z., Huang, Z. L., Hussain, T., Ikegami Andersson, W., Ji, Q., Ji, Q. P., Ji, X. B., Ji, X. L., Jiang, X. S., Jiang, X. Y., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jin, Y., Johansson, T., Julin, A., Kalantar-Nayestanaki, N., Kang, X. L., Kang, X. S., Kavatsyuk, M., Ke, B. C., Khan, T., Khoukaz, A., Kiese, P., Kliemt, R., Koch, L., Kolcu, O. B., Kopf, B., Kornicer, M., Kuemmel, M., Kuessner, M., Kuhlmann, M., Kupsc, A., Kühn, W., Lange, J. S., Lara, M., Larin, P., Lavezzi, L., Leithoff, H., Leng, C., Li, C., Li, Cheng, Li, D. M., Li, F., Li, F. Y., Li, G., Li, H. B., Li, H. J., Li, J. C., Li, Jin, Li, K. J., Li, Kang, Li, Ke, Li, Lei, Li, P. L., Li, P. R., Li, Q. Y., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, Z. B., Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Lin, D. X., Liu, B., Liu, B. J., Liu, C. X., Liu, D., Liu, F. H., Liu, Fang, Liu, Feng, Liu, H. B., Liu, H. M., Liu, Huanhuan, Liu, Huihui, Liu, J. B., Liu, J. P., Liu, J. Y., Liu, K., Liu, K. Y., Liu, Ke, Liu, L. D., Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, Y. B., Liu, Z. A., Liu, Zhiqing, Long, Y. F., Lou, X. C., Lu, H. J., Lu, J. G., Lu, Y., Lu, Y. P., Luo, C. L., Luo, M. X., Luo, X. L., Lyu, X. R., Ma, F. C., Ma, H. L., Ma, L. L., Ma, M. M., Ma, Q. M., Ma, T., Ma, X. N., Ma, X. Y., Ma, Y. M., Maas, F. E., Maggiora, M., Malik, Q. A., Mao, Y. J., Mao, Z. P., Marcello, S., Meng, Z. X., Messchendorp, J. G., Mezzadri, G., Min, J., Min, T. J., Mitchell, R. E., Mo, X. H., Mo, Y. J., Morales Morales, C., Muchnoi, N. Yu., Muramatsu, H., Musiol, P., Mustafa, A., Nefedov, Y., Nerling, F., Nikolaev, I. B., Ning, Z., Nisar, S., Niu, S. L., Niu, X. Y., Olsen, S. 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@article{osti_1479171,
title = {Measurement of the Branching Fraction For the Semileptonic Decay D 0 ( + ) → π - ( 0 ) μ + ν μ and Test of Lepton Flavor Universality},
author = {Ablikim, M. and Achasov, M. N. and Ahmed, S. and Albrecht, M. and Amoroso, A. and An, F. F. and An, Q. and Bai, J. Z. and Bai, Y. and Bakina, O. and Baldini Ferroli, R. and Ban, Y. and Bennett, D. W. and Bennett, J. V. and Berger, N. and Bertani, M. and Bettoni, D. and Bian, J. M. and Bianchi, F. and Boger, E. and Boyko, I. and Briere, R. A. and Cai, H. and Cai, X. and Cakir, O. and Calcaterra, A. and Cao, G. F. and Cetin, S. A. and Chai, J. and Chang, J. F. and Chelkov, G. and Chen, G. and Chen, H. S. and Chen, J. C. and Chen, M. L. and Chen, P. L. and Chen, S. J. and Chen, X. R. and Chen, Y. B. and Chu, X. K. and Cibinetto, G. and Dai, H. L. and Dai, J. P. and Dbeyssi, A. and Dedovich, D. and Deng, Z. Y. and Denig, A. and Denysenko, I. and Destefanis, M. and De Mori, F. and Ding, Y. and Dong, C. and Dong, J. and Dong, L. Y. and Dong, M. Y. and Dou, Z. L. and Du, S. X. and Duan, P. F. and Fang, J. and Fang, S. 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C. and Khan, T. and Khoukaz, A. and Kiese, P. and Kliemt, R. and Koch, L. and Kolcu, O. B. and Kopf, B. and Kornicer, M. and Kuemmel, M. and Kuessner, M. and Kuhlmann, M. and Kupsc, A. and Kühn, W. and Lange, J. S. and Lara, M. and Larin, P. and Lavezzi, L. and Leithoff, H. and Leng, C. and Li, C. and Li, Cheng and Li, D. M. and Li, F. and Li, F. Y. and Li, G. and Li, H. B. and Li, H. J. and Li, J. C. and Li, Jin and Li, K. J. and Li, Kang and Li, Ke and Li, Lei and Li, P. L. and Li, P. R. and Li, Q. Y. and Li, W. D. and Li, W. G. and Li, X. L. and Li, X. N. and Li, X. Q. and Li, Z. B. and Liang, H. and Liang, Y. F. and Liang, Y. T. and Liao, G. R. and Lin, D. X. and Liu, B. and Liu, B. J. and Liu, C. X. and Liu, D. and Liu, F. H. and Liu, Fang and Liu, Feng and Liu, H. B. and Liu, H. M. and Liu, Huanhuan and Liu, Huihui and Liu, J. B. and Liu, J. P. and Liu, J. Y. and Liu, K. and Liu, K. Y. and Liu, Ke and Liu, L. D. and Liu, P. L. and Liu, Q. and Liu, S. B. and Liu, X. and Liu, Y. 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G. and Pitka, A. and Poling, R. and Prasad, V. and Qi, H. R. and Qi, M. and Qian, S. and Qiao, C. F. and Qin, N. and Qin, X. S. and Qin, Z. H. and Qiu, J. F. and Rashid, K. H. and Redmer, C. F. and Richter, M. and Ripka, M. and Rolo, M. and Rong, G. and Rosner, Ch. and Sarantsev, A. and Savrié, M. and Schnier, C. and Schoenning, K. and Shan, W. and Shao, M. and Shen, C. P. and Shen, P. X. and Shen, X. Y. and Sheng, H. Y. and Song, J. J. and Song, W. M. and Song, X. Y. and Sosio, S. and Sowa, C. and Spataro, S. and Sun, G. X. and Sun, J. F. and Sun, L. and Sun, S. S. and Sun, X. H. and Sun, Y. J. and Sun, Y. K. and Sun, Y. Z. and Sun, Z. J. and Sun, Z. T. and Tang, C. J. and Tang, G. Y. and Tang, X. and Tapan, I. and Tiemens, M. and Tsednee, B. and Uman, I. and Varner, G. S. and Wang, B. and Wang, B. L. and Wang, D. and Wang, D. Y. and Wang, Dan and Wang, K. and Wang, L. L. and Wang, L. S. and Wang, M. and Wang, Meng and Wang, P. and Wang, P. L. and Wang, W. P. and Wang, X. F. and Wang, Y. and Wang, Y. D. and Wang, Y. F. and Wang, Y. Q. and Wang, Z. and Wang, Z. G. and Wang, Z. Y. and Wang, Zongyuan and Weber, T. and Wei, D. H. and Weidenkaff, P. and Wen, S. P. and Wiedner, U. and Wolke, M. and Wu, L. H. and Wu, L. J. and Wu, Z. and Xia, L. and Xia, Y. and Xiao, D. and Xiao, H. and Xiao, Y. J. and Xiao, Z. J. and Xie, Y. G. and Xie, Y. H. and Xiong, X. A. and Xiu, Q. L. and Xu, G. F. and Xu, J. J. and Xu, L. and Xu, Q. J. and Xu, Q. N. and Xu, X. P. and Yan, L. and Yan, W. B. and Yan, W. C. and Yan, Y. H. and Yang, H. J. and Yang, H. X. and Yang, L. and Yang, Y. H. and Yang, Y. X. and Ye, M. and Ye, M. H. and Yin, J. H. and You, Z. Y. and Yu, B. X. and Yu, C. X. and Yu, J. S. and Yuan, C. Z. and Yuan, Y. and Yuncu, A. and Zafar, A. A. and Zeng, Y. and Zeng, Z. and Zhang, B. X. and Zhang, B. Y. and Zhang, C. C. and Zhang, D. H. and Zhang, H. H. and Zhang, H. Y. and Zhang, J. and Zhang, J. L. and Zhang, J. Q. and Zhang, J. W. and Zhang, J. Y. and Zhang, J. Z. and Zhang, K. and Zhang, L. and Zhang, S. Q. and Zhang, X. Y. and Zhang, Y. H. and Zhang, Y. T. and Zhang, Yang and Zhang, Yao and Zhang, Yu and Zhang, Z. H. and Zhang, Z. P. and Zhang, Z. Y. and Zhao, G. and Zhao, J. W. and Zhao, J. Y. and Zhao, J. Z. and Zhao, Lei and Zhao, Ling and Zhao, M. G. and Zhao, Q. and Zhao, S. J. and Zhao, T. C. and Zhao, Y. B. and Zhao, Z. G. and Zhemchugov, A. and Zheng, B. and Zheng, J. P. and Zheng, Y. H. and Zhong, B. and Zhou, L. and Zhou, X. and Zhou, X. K. and Zhou, X. R. and Zhou, X. Y. and Zhou, Y. X. and Zhu, J. and Zhu, J. and Zhu, K. and Zhu, K. J. and Zhu, S. and Zhu, S. H. and Zhu, X. L. and Zhu, Y. C. and Zhu, Y. S. and Zhu, Z. A. and Zhuang, J. and Zou, B. S. and Zou, J. H. and BESIII Collaboration},
abstractNote = {Using a data sample corresponding to an integrated luminosity of $2.93\text{ }\text{ }{\mathrm{fb}}^{{-}1}$ taken at a center-of-mass energy of 3.773 GeV with the BESIII detector operated at the BEPCII collider, we perform an analysis of the semileptonic decays ${D}^{0(+)}{\rightarrow}{{\pi}}^{{-}(0)}{{\mu}}^{+}{{\nu}}_{{\mu}}$. The branching fractions of ${D}^{0}{\rightarrow}{{\pi}}^{{-}}{{\mu}}^{+}{{\nu}}_{{\mu}}$ and ${D}^{+}{\rightarrow}{{\pi}}^{0}{{\mu}}^{+}{{\nu}}_{{\mu}}$ are measured to be $(0.272\pm{}0.00{8}_{\mathrm{stat}}\pm{}0.00{6}_{\mathrm{syst}})%$ and $(0.350\pm{}0.01{1}_{\mathrm{stat}}\pm{}0.01{0}_{\mathrm{syst}})%$, respectively, where the former is of much improved precision compared to previous results and the latter is determined for the first time. Using these results along with previous BESIII measurements of ${D}^{0(+)}{\rightarrow}{{\pi}}^{{-}(0)}{e}^{+}{{\nu}}_{e}$, we calculate the branching fraction ratios to be ${\mathcal{R}}^{0}{\equiv}{\mathcal{B}}_{{D}^{0}{\rightarrow}{{\pi}}^{{-}}{{\mu}}^{+}{{\nu}}_{{\mu}}}/{\mathcal{B}}_{{D}^{0}{\rightarrow}{{\pi}}^{{-}}{e}^{+}{{\nu}}_{e}}=0.922\pm{}0.03{0}_{\mathrm{stat}}\pm{}0.02{2}_{\mathrm{syst}}$ and ${\mathcal{R}}^{+}{\equiv}{\mathcal{B}}_{{D}^{+}{\rightarrow}{{\pi}}^{0}{{\mu}}^{+}{{\nu}}_{{\mu}}}/{\mathcal{B}}_{{D}^{+}{\rightarrow}{{\pi}}^{0}{e}^{+}{{\nu}}_{e}}=0.964\pm{}0.03{7}_{\mathrm{stat}}\pm{}0.02{6}_{\mathrm{syst}}$, which are compatible with the theoretical expectation of lepton flavor universality within $1.7{\sigma}$ and $0.5{\sigma}$, respectively. We also examine the branching fraction ratios in different four-momentum transfer square regions, and find no significant deviations from the standard model predictions.},
doi = {10.1103/PhysRevLett.121.171803},
journal = {Physical Review Letters},
number = 17,
volume = 121,
place = {United States},
year = {2018},
month = {10}
}

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DOI: 10.1103/PhysRevLett.121.171803

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FIG. 1 FIG. 1: Fits to the MBC distributions of the ST D̄0 (left column) and D− (middle and right columns) modes. The dots with error bars are data. The blue solid and red dashed curves are the fit results and the fitted backgrounds. The signal region is between the red arrows.

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Covariant light-front approach for s -wave and p -wave mesons: Its application to decay constants and form factors
journal, April 2004


Implications of Lepton Flavor Universality Violations in B Decays
journal, October 2012


Measurement of the integrated luminosities of the data taken by BESIII at √ s = 3.650 and 3.773 GeV
journal, December 2013


Test of Lepton Universality Using B + K + + Decays
journal, October 2014


Evidence for an Excess of B ¯ D ( * ) τ ν ¯ τ Decays
journal, September 2012


Discerning new physics in charm meson leptonic and semileptonic decays
journal, May 2015


Review of Particle Physics
journal, August 2018


Scalar and vector form factors of D π ( K ) ν decays with N f = 2 + 1 + 1 twisted fermions
journal, September 2017


Event generators at BESIII
journal, August 2008


Comment on the heavy→light form factors
journal, April 2000


Geant4—a simulation toolkit
journal, July 2003

  • Agostinelli, S.; Allison, J.; Amako, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3
  • DOI: 10.1016/S0168-9002(03)01368-8

B D * τ ν ¯ τ sensitivity to new physics
journal, May 2012


Search for hadronic b→u decays
journal, May 1990


Minimal Leptoquark Explanation for the R D ( * ) , R K , and ( g 2 ) μ Anomalies
journal, April 2016


Coherent exclusive exponentiation for precision Monte Carlo calculations
journal, May 2001


Design and construction of the BESIII detector
journal, March 2010

  • Ablikim, M.; An, Z. H.; Bai, J. Z.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 614, Issue 3
  • DOI: 10.1016/j.nima.2009.12.050

    Works referencing / citing this record:

    Exclusive semileptonic decays of D and Ds mesons in the covariant confining quark model
    journal, July 2019


    PHOTOS - a universal Monte Carlo for QED radiative corrections: version 2.0
    journal, April 1994


    Design and construction of the BESIII detector
    journal, March 2010

    • Ablikim, M.; An, Z. H.; Bai, J. Z.
    • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 614, Issue 3
    • DOI: 10.1016/j.nima.2009.12.050

    Measurement of the branching ratio of the decay <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msup><mml:mi>D</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:mo>→</mml:mo><mml:msup><mml:mi>π</mml:mi><mml:mo>−</mml:mo></mml:msup><mml:msup><mml:mi>μ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:mi>ν</mml:mi></mml:math> relative to <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msup><mml:mi>D</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:mo>→</mml:mo><mml:msup><mml:mi>K</mml:mi><mml:mo>−</mml:mo></mml:msup><mml:msup><mml:mi>μ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:mi>ν</mml:mi></mml:math>
    journal, February 2005


    Measurement of the <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:mi>D</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow><mml:mi>K</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:math> strong phase difference in <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:mi>ψ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>3770</mml:mn><mml:mo stretchy="false">)</mml:mo><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow><mml:mi>D</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mover accent="true"><mml:mi>D</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:math>
    journal, June 2014


    Measurement of the e+e−→π+π− cross section between 600 and 900 MeV using initial state radiation
    journal, February 2016


    Event generators at BESIII
    journal, August 2008


    Measurement of the integrated luminosities of the data taken by BESIII at √ s = 3.650 and 3.773 GeV
    journal, December 2013


    Looking for new physics via semi-leptonic and leptonic rare decays of D and D s
    journal, September 2017


    Improved measurement of the absolute branching fraction of $$D^{+}\rightarrow \bar{K}^0 \mu ^{+}\nu _{\mu }$$ D + → K ¯ 0 μ + ν μ
    journal, July 2016


    Measurement of the Branching Fraction For the Semileptonic Decay $D^{0 ( + ) }→ π^{− ( 0 )} μ + ν μ$ and Test of Lepton Flavor Universality
    text, January 2018

    • Ablikim, M.; Achasov, M. N.; Ahmed, S.
    • GSI Helmholtzzentrum fuer Schwerionenforschung, GSI, Darmstadt
    • DOI: 10.15120/gsi-2019-00015

      Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.