Search for the B → Y ( 4260 ) K , Y ( 4260 ) → J / ψ π + π − decays

Garg, R.; Bhardwaj, V.; Singh, J. B.; Adachi, I.; Ahn, J. K.; Aihara, H.; Al Said, S.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Ayad, R.; Babu, V.; Bahinipati, S.; Bansal, V.; Beleño, C.; Bilka, T.; Biswal, J.; Bobrov, A.; Bozek, A.; Bračko, M.; Cao, L.; Červenkov, D.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, H. E.; Cho, K.; Choi, S. -K.; Choi, Y.; Cinabro, D.; Cunliffe, S.; Dash, N.; Di Carlo, S.; Doležal, Z.; Dong, T. V.; Drásal, Z.; Eidelman, S.; Fast, J. E.; Fulsom, B. G.; Gaur, V.; Gabyshev, N.; Garmash, A.; Giri, A.; Golob, B.; Grzymkowska, O.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hou, W. -S.; Hsu, C. -L.; 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.; Kawasaki, T.; Kichimi, H.; Kim, D. Y.; Kim, J. B.; Kim, S. H.; Kinoshita, K.; Kodyš, P.; Korpar, S.; Kotchetkov, D.; Križan, P.; Kroeger, R.; Krokovny, P.; Kuhr, T.; Kumar, R.; Kwon, Y. -J.; Lange, J. S.; Lee, J. K.; Lee, S. C.; Li, C. H.; Li, L. K.; Li, Y. B.; Li Gioi, L.; Libby, J.; Liventsev, D.; Lu, P. -C.; Luo, T.; MacNaughton, J.; Masuda, M.; Matsuda, T.; Matvienko, D.; Merola, M.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Mori, T.; Mussa, R.; Nakao, M.; Nath, K. J.; Nayak, M.; Nishida, S.; Nishimura, K.; Ogawa, S.; Ono, H.; Onuki, Y.; Pakhlov, P.; Pakhlova, G.; Pal, B.; Pardi, S.; Patra, S.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Popov, V.; Prasanth, K.; Prencipe, E.; Resmi, P. K.; Rostomyan, A.; Russo, G.; Sakai, Y.; Salehi, M.; Sandilya, S.; Sanuki, T.; Schneider, O.; Schnell, G.; Schueler, J.; Schwanda, C.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shebalin, V.; Shen, C. P.; Shibata, T. -A.; Shiu, J. -G.; Sokolov, A.; Solovieva, E.; Starič, M.; Stottler, Z. S.; Sumihama, M.; Sumiyoshi, T.; Takizawa, M.; Tanida, K.; Tenchini, F.; Trabelsi, K.; Uchida, M.; Uglov, T.; Unno, Y.; Uno, S.; Usov, Y.; Van Tonder, R.; Varner, G.; Varvell, K. E.; Waheed, E.; Wang, B.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Wang, X. L.; Watanabe, M.; Won, E.; Yang, S. B.; Ye, H.; Yelton, J.; Yin, J. H.; Yuan, C. Z.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.; Zhulanov, V.

doi:10.1103/PhysRevD.99.071102

Title: Search for the $B \to Y (4260) K$ , $Y (4260) \to J / ψ π^{+} π^{-}$ decays

Abstract

We report the results of a search for the $B \to Y (4260) K$ , $Y (4260) \to J / ψ π^{+} π^{-}$ decays. This study is based on a data sample corresponding to an integrated luminosity of $711 {fb}^{- 1}$ , collected at the $Υ (4 S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^{+} e^{-}$ collider. We investigate the $J / ψ π^{+} π^{-}$ invariant mass distribution in the range 4.0 to $4.6 GeV / c^{2}$ using both $B^{+} \to J / ψ π^{+} π^{-} K^{+}$ and $B^{0} \to J / ψ π^{+} π^{-} K_{S}^{0}$ decays. We find excesses of events above the background levels, with significances of 2.1 and 0.9 standard deviations for charged and neutral $B \to Y (4260) K$ decays, respectively, taking into account the systematic uncertainties. These correspond to upper limits on the product of branching fractions, $B (B^{+} \to Y (4260) K^{+}) \times B (Y (4260) \to J / ψ π^{+} π^{-}) < 1.4 \times 10^{- 5}$ and $B (B^{0} \to Y (4260) K^{0}) \times B (Y (4260) \to J / ψ π^{+} π^{-}) < 1.7 \times 10^{- 5}$ at the 90% confidence level.

Authors:: Garg, R.; Bhardwaj, V.; Singh, J. B.; Adachi, I.; Ahn, J. K.; Aihara, H.; Al Said, S.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Ayad, R.; Babu, V.; Bahinipati, S.; Bansal, V.; Beleño, C.; Bilka, T.; Biswal, J.; Bobrov, A.; Bozek, A.; Bračko, M. more »« less

Publication Date:: Fri Apr 12 00:00:00 EDT 2019

Research Org.:: Brookhaven National Laboratory (BNL), Upton, NY (United States); Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States); Univ. of Hawaii, Honolulu, HI (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Org.:: Belle Collaboration

OSTI Identifier:: 1506744

Alternate Identifier(s):: OSTI ID: 1514378; OSTI ID: 1593802

Report Number(s):: BNL-211682-2019-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; 071102

Grant/Contract Number:: SC0012704; SC0009973; SC0010504

Resource Type:: Published Article

Journal Name:: Physical Review. D.

Additional Journal Information:: Journal Name: Physical Review. D. Journal Volume: 99 Journal Issue: 7; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; branching fraction; quantum chromodynamics; quark model; bottom quark; exotic mesons; mesons; lepton colliders

Citation Formats


                    Garg, R., Bhardwaj, V., Singh, J. B., Adachi, I., Ahn, J. K., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Bansal, V., Beleño, C., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., Bračko, M., Cao, L., Červenkov, D., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S. -K., Choi, Y., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Doležal, Z., Dong, T. V., Drásal, Z., Eidelman, S., Fast, J. E., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Golob, B., Grzymkowska, O., Haba, J., Hayasaka, K., Hayashii, H., Hou, W. -S., Hsu, C. -L., 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., Kawasaki, T., Kichimi, H., Kim, D. Y., Kim, J. B., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, R., Kwon, Y. -J., Lange, J. S., Lee, J. K., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Liventsev, D., Lu, P. -C., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nakao, M., Nath, K. J., Nayak, M., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prasanth, K., Prencipe, E., Resmi, P. K., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Tonder, R., Varner, G., Varvell, K. E., Waheed, E., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Won, E., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Belle Collaboration. Search for the B → Y ( 4260 ) K , Y ( 4260 ) → J / ψ π + π − decays.  United States: N. p., 2019. 
Web.  doi:10.1103/PhysRevD.99.071102.

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                    Garg, R., Bhardwaj, V., Singh, J. B., Adachi, I., Ahn, J. K., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Bansal, V., Beleño, C., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., Bračko, M., Cao, L., Červenkov, D., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S. -K., Choi, Y., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Doležal, Z., Dong, T. V., Drásal, Z., Eidelman, S., Fast, J. E., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Golob, B., Grzymkowska, O., Haba, J., Hayasaka, K., Hayashii, H., Hou, W. -S., Hsu, C. -L., 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., Kawasaki, T., Kichimi, H., Kim, D. Y., Kim, J. B., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, R., Kwon, Y. -J., Lange, J. S., Lee, J. K., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Liventsev, D., Lu, P. -C., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nakao, M., Nath, K. J., Nayak, M., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prasanth, K., Prencipe, E., Resmi, P. K., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Tonder, R., Varner, G., Varvell, K. E., Waheed, E., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Won, E., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., & Belle Collaboration. Search for the B → Y ( 4260 ) K , Y ( 4260 ) → J / ψ π + π − decays.  United States.  https://doi.org/10.1103/PhysRevD.99.071102

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                    Garg, R., Bhardwaj, V., Singh, J. B., Adachi, I., Ahn, J. K., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Bansal, V., Beleño, C., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., Bračko, M., Cao, L., Červenkov, D., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S. -K., Choi, Y., Cinabro, D., Cunliffe, S., Dash, N., Di Carlo, S., Doležal, Z., Dong, T. V., Drásal, Z., Eidelman, S., Fast, J. E., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Golob, B., Grzymkowska, O., Haba, J., Hayasaka, K., Hayashii, H., Hou, W. -S., Hsu, C. -L., 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., Kawasaki, T., Kichimi, H., Kim, D. Y., Kim, J. B., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, R., Kwon, Y. -J., Lange, J. S., Lee, J. K., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Liventsev, D., Lu, P. -C., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nakao, M., Nath, K. J., Nayak, M., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prasanth, K., Prencipe, E., Resmi, P. K., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Tonder, R., Varner, G., Varvell, K. E., Waheed, E., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Won, E., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Belle Collaboration. Fri .  
"Search for the B → Y ( 4260 ) K , Y ( 4260 ) → J / ψ π + π − decays".  United States.  https://doi.org/10.1103/PhysRevD.99.071102.

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@article{osti_1506744,

  title        = {Search for the B → Y ( 4260 ) K , Y ( 4260 ) → J / ψ π + π − decays},

  author       = {Garg, R. and Bhardwaj, V. and Singh, J. B. and Adachi, I. and Ahn, J. K. and Aihara, H. and Al Said, S. and Asner, D. M. and Aulchenko, V. and Aushev, T. and Ayad, R. and Babu, V. and Bahinipati, S. and Bansal, V. and Beleño, C. and Bilka, T. and Biswal, J. and Bobrov, A. and Bozek, A. and Bračko, M. and Cao, L. and Červenkov, D. and Chen, A. and Cheon, B. G. and Chilikin, K. and Cho, H. E. and Cho, K. and Choi, S. -K. and Choi, Y. and Cinabro, D. and Cunliffe, S. and Dash, N. and Di Carlo, S. and Doležal, Z. and Dong, T. V. and Drásal, Z. and Eidelman, S. and Fast, J. E. and Fulsom, B. G. and Gaur, V. and Gabyshev, N. and Garmash, A. and Giri, A. and Golob, B. and Grzymkowska, O. and Haba, J. and Hayasaka, K. and Hayashii, H. and Hou, W. -S. and Hsu, C. -L. 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 Kawasaki, T. and Kichimi, H. and Kim, D. Y. and Kim, J. B. 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 Kumar, R. and Kwon, Y. -J. and Lange, J. S. and Lee, J. K. and Lee, S. C. and Li, C. H. and Li, L. K. and Li, Y. B. and Li Gioi, L. and Libby, J. and Liventsev, D. and Lu, P. -C. and Luo, T. and MacNaughton, J. and Masuda, M. and Matsuda, T. and Matvienko, D. and Merola, M. and Miyabayashi, K. and Miyata, H. and Mizuk, R. and Mohanty, G. B. and Mori, T. and Mussa, R. and Nakao, M. and Nath, K. J. and Nayak, M. and Nishida, S. and Nishimura, K. and Ogawa, S. and Ono, H. and Onuki, Y. and Pakhlov, P. and Pakhlova, G. and Pal, B. and Pardi, S. and Patra, S. and Paul, S. and Pedlar, T. K. and Pestotnik, R. and Piilonen, L. E. and Popov, V. and Prasanth, K. and Prencipe, E. and Resmi, P. K. and Rostomyan, A. and Russo, G. and Sakai, Y. and Salehi, M. and Sandilya, S. and Sanuki, T. and Schneider, O. and Schnell, G. and Schueler, J. and Schwanda, C. and Seino, Y. and Senyo, K. and Sevior, M. E. and Shebalin, V. and Shen, C. P. and Shibata, T. -A. and Shiu, J. -G. and Sokolov, A. and Solovieva, E. and Starič, M. and Stottler, Z. S. and Sumihama, M. and Sumiyoshi, T. 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 Tonder, R. and Varner, G. and Varvell, K. E. and Waheed, E. and Wang, B. and Wang, C. H. and Wang, M. -Z. and Wang, P. and Wang, X. L. and Watanabe, M. and Won, E. and Yang, S. B. and Ye, H. and Yelton, J. and Yin, J. H. and Yuan, C. Z. and Zhang, Z. P. and Zhilich, V. and Zhukova, V. and Zhulanov, V. and Belle Collaboration},

  abstractNote = {We report the results of a search for the B→Y(4260)K, Y(4260)→J/ψπ+π- decays. This study is based on a data sample corresponding to an integrated luminosity of 711 fb-1, collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We investigate the J/ψπ+π- invariant mass distribution in the range 4.0 to 4.6 GeV/c2 using both B+→J/ψπ+π-K+ and B0→J/ψπ+π-KS0 decays. We find excesses of events above the background levels, with significances of 2.1 and 0.9 standard deviations for charged and neutral B→Y(4260)K decays, respectively, taking into account the systematic uncertainties. These correspond to upper limits on the product of branching fractions, B(B+→Y(4260)K+)×B(Y(4260)→J/ψπ+π-)<1.4×10-5 and B(B0→Y(4260)K0)×B(Y(4260)→J/ψπ+π-)<1.7×10-5 at the 90% confidence level.},

  doi          = {10.1103/PhysRevD.99.071102},

  journal      = {Physical Review. D.},

  number       = 7,

  volume       = 99,

  place        = {United States},

  year         = {Fri Apr 12 00:00:00 EDT 2019},

  month        = {Fri Apr 12 00:00:00 EDT 2019}

}

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FIG. 1: Fit to the $ΔE$ ((a) and (b)) and_$s$$\mathcal{P}lot$ of $MJ$/$ψππ$ ((c) and (d)) distributions for $B$⁺$\rightarrow$ $ψ$(2$S$)($\rightarrow$ $J$/$ψπ$⁺$π$⁻)$K$⁺ decays (top) and $B$⁰ $\rightarrow$ $ψ$(2$S$)($\rightarrow$ $J$/$ψπ$⁺$π$⁻)$K^{0}_{S}$ decays (bottom), respectively. The curves show the fit functions for the signal (red dotted curve), background (green dashed curve) and their summore »

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Title: Search for the B → Y ( 4260 ) K , Y ( 4260 ) → J / ψ π + π − decays

Abstract

Citation Formats

Figures / Tables:

Y ( 4260 ) as a mixed charmonium-tetraquark state journal, December 2012

PHOTOS Monte Carlo: a precision tool for QED correctionsin Z and W decays journal, January 2006

Confirmation of the Y ( 4260 ) resonance production in initial state radiation journal, November 2006

Y(4260) as a J / ψ K K ¯ system journal, November 2009

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

Bounds on the width, mass difference and other properties of X ( 3872 ) → π + π − J / ψ decays journal, September 2011

Measurement of time-dependent C P asymmetries in B 0 → K S 0 η γ decays journal, May 2018

The EvtGen particle decay simulation package journal, April 2001

: A statistical tool to unfold data distributions journal, December 2005

Precise Measurement of the e + e − → π + π − J / ψ Cross Section at Center-of-Mass Energies from 3.77 to 4.60 GeV journal, March 2017

Next-to-leading logarithms and the PHOTOS Monte Carlo journal, February 2007

Observables for the Analysis of Event Shapes in e + e − Annihilation and Other Processes journal, December 1978

The possible interpretations of Y(4260) journal, October 2005

Measurement of the e + e − → π + π − J / ψ Cross Section Via Initial-State Radiation at Belle journal, November 2007

Observation of a Broad Structure in the π + π − J / ψ Mass Spectrum around 4.26 GeV / c 2 journal, September 2005

Physics achievements from the Belle experiment journal, January 2012

Review of Particle Physics journal, August 2018

Achievements of KEKB journal, January 2013

Muon identification in the Belle experiment at KEKB journal, September 2002

Study of the X ( 3872 ) and Y ( 4260 ) in B 0 → J / ψ π + π − K 0 and B − → J / ψ π + π − K − decays journal, January 2006

Four quark interpretation of Y ( 4260 ) journal, August 2005

Belle PID journal, November 2002

Are Y ( 4260 ) and Z 2 + ( 4250 ) D 1 D or D 0 D * hadronic molecules? journal, January 2009

Possible molecule structure of the newly observed Y ( 4260 ) journal, September 2005

Production of the Y (4260) state in B meson decay journal, July 2015

Overview of the KEKB accelerators journal, February 2003

The Belle detector journal, February 2002

Unified approach to the classical statistical analysis of small signals journal, April 1998

Observation of a Charged Charmoniumlike Structure in e + e − → π + π − J / ψ at s = 4.26 GeV journal, June 2013

Study of e + e − → π + π − J / ψ and Observation of a Charged Charmoniumlike State at Belle journal, June 2013

Title: Search for the $B \to Y (4260) K$ , $Y (4260) \to J / ψ π^{+} π^{-}$ decays

$Y (4260)$ as a mixed charmonium-tetraquark state
journal, December 2012

PHOTOS Monte Carlo: a precision tool for QED correctionsin Z and W decays
journal, January 2006

Confirmation of the $Y (4260)$ resonance production in initial state radiation
journal, November 2006

Y(4260) as a $J / ψ K \bar{K}$ system
journal, November 2009

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

Bounds on the width, mass difference and other properties of $X (3872) \to π^{+} π^{-} J / ψ$ decays
journal, September 2011

Measurement of time-dependent $C P$ asymmetries in $B^{0} \to K_{S}^{0} η γ$ decays
journal, May 2018

The EvtGen particle decay simulation package
journal, April 2001

: A statistical tool to unfold data distributions
journal, December 2005

Precise Measurement of the $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ Cross Section at Center-of-Mass Energies from 3.77 to 4.60 GeV
journal, March 2017

Next-to-leading logarithms and the PHOTOS Monte Carlo
journal, February 2007

Observables for the Analysis of Event Shapes in $e^{+} e^{-}$ Annihilation and Other Processes
journal, December 1978

The possible interpretations of Y(4260)
journal, October 2005

Measurement of the $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ Cross Section Via Initial-State Radiation at Belle
journal, November 2007

Observation of a Broad Structure in the $π^{+} π^{-} J / ψ$ Mass Spectrum around $4.26 GeV / c^{2}$
journal, September 2005

Physics achievements from the Belle experiment
journal, January 2012

Review of Particle Physics
journal, August 2018

Achievements of KEKB
journal, January 2013

Muon identification in the Belle experiment at KEKB
journal, September 2002

Study of the $X (3872)$ and $Y (4260)$ in $B^{0} \to J / ψ π^{+} π^{-} K^{0}$ and $B^{-} \to J / ψ π^{+} π^{-} K^{-}$ decays
journal, January 2006

Four quark interpretation of $Y (4260)$
journal, August 2005

Belle PID
journal, November 2002

Are $Y (4260)$ and $Z_{2}^{+} (4250)$ $D_{1} D$ or $D_{0} D^{*}$ hadronic molecules?
journal, January 2009

Possible molecule structure of the newly observed $Y (4260)$
journal, September 2005

Production of the Y (4260) state in B meson decay
journal, July 2015

Overview of the KEKB accelerators
journal, February 2003

The Belle detector
journal, February 2002

Unified approach to the classical statistical analysis of small signals
journal, April 1998

Observation of a Charged Charmoniumlike Structure in $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ at $\sqrt{s} = 4.26 GeV$
journal, June 2013

Study of $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ and Observation of a Charged Charmoniumlike State at Belle
journal, June 2013