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Title: Search for a Light C P -odd Higgs Boson and Low-Mass Dark Matter at the Belle Experiment

Abstract

Here, we report on the first Belle search for a light CP-odd Higgs boson, A 0, that decays into low mass dark matter, χ, in final states with a single photon and missing energy. We search for events produced via the dipion transition Υ(2S)→Υ(1S)π +π -, followed by the on-shell process Υ(1S)→γA 0 with A 0→χχ, or by the off-shell process Υ(1S)→γχχ. Utilizing a data sample of 157.3×10 6 Υ(2S) decays, we find no evidence for a signal. We set limits on the branching fractions of such processes in the mass ranges M A0 <8.97 GeV/c 2 and Mχ<4.44 GeV/c 2. We then use the limits on the off-shell process to set competitive limits on WIMP-nucleon scattering in the WIMP mass range below 5 GeV/c 2.

Authors:
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Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); National Science Foundation (NSF); KEK - High Energy Accelerator Research Organization; Ministry of Education, Culture, Sports, Science and Technology
Contributing Org.:
Belle Collaboration
OSTI Identifier:
1489714
Alternate Identifier(s):
OSTI ID: 1492792
Report Number(s):
BNL-210921-2019-JAAM
Journal ID: ISSN 0031-9007; PRLTAO
Grant/Contract Number:  
SC0012704
Resource Type:
Journal Article: Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 122; Journal Issue: 1; 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

Citation Formats

Seong, I. S., Vahsen, S. E., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bakich, A. M., Bansal, V., Behera, P., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Cao, L., Červenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Dingfelder, J., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Frey, A., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Golob, B., Guido, E., Haba, J., Hayasaka, K., Hayashii, H., Hedges, M. T., Higuchi, T., Hou, W. -S., Hsu, C. -L., Huang, K., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Julius, T., Kaliyar, A. B., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, I. S., Lee, S. C., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Liventsev, D., Lubej, M., Luo, T., MacQueen, C., Masuda, M., Matsuda, T., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Ostrowicz, W., Pakhlov, P., Pakhlova, G., Pal, B., Park, H., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Prencipe, E., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Simon, F., Solovieva, E., Stanič, S., Starič, M., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Hulse, C., Van Tonder, R., Varner, G., Vinokurova, A., Vossen, A., Wang, B., Wang, C. H., Wang, P., Watanabe, M., Watanuki, S., Widmann, E., Won, E., Yamamoto, H., Ye, H., Yelton, J., Yuan, C. Z., Yusa, Y., Zakharov, S., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A. Search for a Light CP -odd Higgs Boson and Low-Mass Dark Matter at the Belle Experiment. United States: N. p., 2019. Web. doi:10.1103/PhysRevLett.122.011801.
Seong, I. S., Vahsen, S. E., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bakich, A. M., Bansal, V., Behera, P., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Cao, L., Červenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Dingfelder, J., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Frey, A., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Golob, B., Guido, E., Haba, J., Hayasaka, K., Hayashii, H., Hedges, M. T., Higuchi, T., Hou, W. -S., Hsu, C. -L., Huang, K., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Julius, T., Kaliyar, A. B., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, I. S., Lee, S. C., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Liventsev, D., Lubej, M., Luo, T., MacQueen, C., Masuda, M., Matsuda, T., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Ostrowicz, W., Pakhlov, P., Pakhlova, G., Pal, B., Park, H., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Prencipe, E., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Simon, F., Solovieva, E., Stanič, S., Starič, M., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Hulse, C., Van Tonder, R., Varner, G., Vinokurova, A., Vossen, A., Wang, B., Wang, C. H., Wang, P., Watanabe, M., Watanuki, S., Widmann, E., Won, E., Yamamoto, H., Ye, H., Yelton, J., Yuan, C. Z., Yusa, Y., Zakharov, S., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., & Zupanc, A. Search for a Light CP -odd Higgs Boson and Low-Mass Dark Matter at the Belle Experiment. United States. doi:10.1103/PhysRevLett.122.011801.
Seong, I. S., Vahsen, S. E., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bakich, A. M., Bansal, V., Behera, P., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Cao, L., Červenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Dingfelder, J., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Frey, A., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Golob, B., Guido, E., Haba, J., Hayasaka, K., Hayashii, H., Hedges, M. T., Higuchi, T., Hou, W. -S., Hsu, C. -L., Huang, K., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Julius, T., Kaliyar, A. B., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, I. S., Lee, S. C., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Liventsev, D., Lubej, M., Luo, T., MacQueen, C., Masuda, M., Matsuda, T., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Ostrowicz, W., Pakhlov, P., Pakhlova, G., Pal, B., Park, H., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Prencipe, E., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Simon, F., Solovieva, E., Stanič, S., Starič, M., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Hulse, C., Van Tonder, R., Varner, G., Vinokurova, A., Vossen, A., Wang, B., Wang, C. H., Wang, P., Watanabe, M., Watanuki, S., Widmann, E., Won, E., Yamamoto, H., Ye, H., Yelton, J., Yuan, C. Z., Yusa, Y., Zakharov, S., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A. Fri . "Search for a Light CP -odd Higgs Boson and Low-Mass Dark Matter at the Belle Experiment". United States. doi:10.1103/PhysRevLett.122.011801.
@article{osti_1489714,
title = {Search for a Light CP -odd Higgs Boson and Low-Mass Dark Matter at the Belle Experiment},
author = {Seong, I. S. and Vahsen, S. E. and Adachi, I. and Aihara, H. and Al Said, S. and Asner, D. M. and Aulchenko, V. and Aushev, T. and Ayad, R. and Babu, V. and Bakich, A. M. and Bansal, V. and Behera, P. and Bhardwaj, V. and Bhuyan, B. and Bilka, T. and Biswal, J. and Bobrov, A. and Bonvicini, G. and Bozek, A. and Bračko, M. and Browder, T. E. and Cao, L. and Červenkov, D. and Chang, P. and Chekelian, V. and Chen, A. and Cheon, B. G. and Chilikin, K. and Cho, K. and Choi, Y. and Choudhury, S. and Cinabro, D. and Cunliffe, S. and Dash, N. and Di Carlo, S. and Dingfelder, J. and Dong, T. V. and Eidelman, S. and Epifanov, D. and Fast, J. E. and Frey, A. and Fulsom, B. G. and Garg, R. and Gaur, V. and Gabyshev, N. and Garmash, A. and Gelb, M. and Giri, A. and Goldenzweig, P. and Golob, B. and Guido, E. and Haba, J. and Hayasaka, K. and Hayashii, H. and Hedges, M. T. and Higuchi, T. and Hou, W. -S. and Hsu, C. -L. and Huang, K. and Iijima, T. and Inami, K. and Inguglia, G. and Ishikawa, A. and Itoh, R. and Iwasaki, M. and Iwasaki, Y. and Jacobs, W. W. and Jeon, H. B. and Jia, S. and Jin, Y. and Joffe, D. and Joo, K. K. and Julius, T. and Kaliyar, A. B. and Karyan, G. and Kawasaki, T. and Kichimi, H. and Kiesling, C. and Kim, D. Y. and Kim, J. B. and Kim, K. T. and Kim, S. H. and Kinoshita, K. and Kodyš, P. and Korpar, S. and Kotchetkov, D. and Križan, P. and Kroeger, R. and Krokovny, P. and Kuhr, T. and Kumita, T. and Kuzmin, A. and Kwon, Y. -J. and Lange, J. S. and Lee, I. S. and Lee, S. C. and Li, L. K. and Li, Y. B. and Li Gioi, L. and Libby, J. and Liventsev, D. and Lubej, M. and Luo, T. and MacQueen, C. and Masuda, M. and Matsuda, T. and Merola, M. and Miyabayashi, K. and Miyata, H. and Mizuk, R. and Mohanty, G. B. and Mori, T. and Mussa, R. and Nakano, E. and Nakao, M. and Nanut, T. and Nath, K. J. and Nayak, M. and Niiyama, M. and Nisar, N. K. and Nishida, S. and Nishimura, K. and Ogawa, S. and Ono, H. and Ostrowicz, W. and Pakhlov, P. and Pakhlova, G. and Pal, B. and Park, H. and Pedlar, T. K. and Pestotnik, R. and Piilonen, L. E. and Prencipe, E. and Ritter, M. and Rostomyan, A. and Russo, G. and Sakai, Y. and Salehi, M. and Sandilya, S. and Santelj, L. and Sanuki, T. and Savinov, V. and Schneider, O. and Schnell, G. and Schueler, J. and Schwanda, C. and Seino, Y. and Senyo, K. and Seon, O. and Sevior, M. E. and Shen, C. P. and Shibata, T. -A. and Shiu, J. -G. and Simon, F. and Solovieva, E. and Stanič, S. and Starič, M. and Sumihama, M. and Sumiyoshi, T. and Sutcliffe, W. and Takizawa, M. and Tanida, K. and Tenchini, F. and Trabelsi, K. and Uchida, M. and Uglov, T. and Unno, Y. and Uno, S. and Usov, Y. and Van Hulse, C. and Van Tonder, R. and Varner, G. and Vinokurova, A. and Vossen, A. and Wang, B. and Wang, C. H. and Wang, P. and Watanabe, M. and Watanuki, S. and Widmann, E. and Won, E. and Yamamoto, H. and Ye, H. and Yelton, J. and Yuan, C. Z. and Yusa, Y. and Zakharov, S. and Zhang, Z. P. and Zhilich, V. and Zhukova, V. and Zhulanov, V. and Zupanc, A.},
abstractNote = {Here, we report on the first Belle search for a light CP-odd Higgs boson, A0, that decays into low mass dark matter, χ, in final states with a single photon and missing energy. We search for events produced via the dipion transition Υ(2S)→Υ(1S)π+π-, followed by the on-shell process Υ(1S)→γA0 with A0→χχ, or by the off-shell process Υ(1S)→γχχ. Utilizing a data sample of 157.3×106 Υ(2S) decays, we find no evidence for a signal. We set limits on the branching fractions of such processes in the mass ranges MA0 <8.97 GeV/c2 and Mχ<4.44 GeV/c2. We then use the limits on the off-shell process to set competitive limits on WIMP-nucleon scattering in the WIMP mass range below 5 GeV/c2.},
doi = {10.1103/PhysRevLett.122.011801},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 1,
volume = 122,
place = {United States},
year = {2019},
month = {1}
}

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Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevLett.122.011801

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Figures / Tables:

FIG. 1 FIG. 1: Fit result for the on-shell process mass scan point with MA0 = 2.946 GeV/c2, which has the highest local signal signi cance; 2.1σ. Top: Mrecoil distribution. Bottom: E$_γ^*$ distribution. The fited components are continuum background (cyan dashed curve), $\Upsilon$ (1S) decay background (magenta dashed curve), total background (blackmore » dashed curve), and the on-shell signal (red dashed curve). The blue solid curve shows the sum of all tted components.« less

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