Using the data samples of 102 million Υ(1S) and 158 million Υ(2S) events collected by the Belle detector, we search for a pentaquark state in the pJ/ψ final state from Υ(1, 2S) inclusive decays. Here, the charge-conjugate is included. We observe clear pJ/ψ production in Υ(1, 2S) decays and measure the branching fractions to be and. We also measure the cross section of inclusive pJ/ψ production in e+e− annihilation to be σ(e+e− → pJ/ψ + anything) = [108 ± 11(stat.) ± 6(syst.)] fb at GeV using an 89.5 fb−1 continuum data sample. There is no significant Pc(4312)+, Pc(4440)+ or Pc(4457)+ signal found in the pJ/ψ final states in Υ(1, 2S) inclusive decays. We determine the upper limits of to be at the 10−6 level.

Search for a pentaquark state decaying into pJ/ψ in Υ(1, 2S) inclusive decays at Belle / Dong, X.; Zou, S. M.; Zhang, H. Y.; Wang, X. L.; Adachi, I.; Ahn, J. K.; Aihara, H.; Al Said, S.; Asner, D. M.; Atmacan, H.; Ayad, R.; Bahinipati, S.; Banerjee, S.; Bessner, M.; Bhardwaj, V.; Biswas, D.; Bodrov, D.; Bozek, A.; Bracko, M.; Branchini, P.; Browder, T. E.; Budano, A.; Campajola, M.; Cervenkov, D.; Chang, M. -C.; Chang, P.; Cheon, B. G.; Cho, H. E.; Cho, K.; Choi, S. -K.; Choi, Y.; Choudhury, S.; Das, S.; De Nardo, G.; De Pietro, G.; Dhamija, R.; Di Capua, F.; Dingfelder, J.; Dolezal, Z.; Dong, T. V.; Ecker, P.; Epifanov, D.; Ferber, T.; Ferlewicz, D.; Fulsom, B. G.; Garg, R.; Gaur, V.; Giri, A.; Goldenzweig, P.; Graziani, E.; Gu, T.; Guan, Y.; Gudkova, K.; Hadjivasiliou, C.; Hayashii, H.; Hazra, S.; Hedges, M. T.; Hou, W. -S.; Hsu, C. -L.; Inami, K.; Ipsita, N.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Jacobs, W. W.; Jia, S.; Jin, Y.; Kalita, D.; Kawasaki, T.; Kim, D. Y.; Kim, K. -H.; Kim, Y. J.; Kim, Y. -K.; Kinoshita, K.; Kodys, P.; Korobov, A.; Korpar, S.; Kovalenko, E.; Krizan, P.; Krokovny, P.; Kuhr, T.; Kumar, R.; Kumita, T.; Kuzmin, A.; Kwon, Y. -J.; Lai, Y. -T.; Lam, T.; Lange, J. S.; Levit, D.; Li, L. K.; Li, Y.; Li, Y. B.; Gioi, L. L.; Libby, J.; Liventsev, D.; Ma, Y.; Masuda, M.; Matsuda, T.; Maurya, S. K.; Meier, F.; Merola, M.; Metzner, F.; Miyabayashi, K.; Mussa, R.; Nakamura, I.; Nakano, T.; Nakao, M.; Natkaniec, Z.; Natochii, A.; Nayak, L.; Nayak, M.; Nishida, S.; Ogawa, S.; Ono, H.; Pakhlova, G.; Pardi, S.; Park, H.; Park, J.; Park, S. -H.; Passeri, A.; Patra, S.; Paul, S.; Pestotnik, R.; Piilonen, L. E.; Podobnik, T.; Prencipe, E.; Prim, M. T.; Russo, G.; Sandilya, S.; Savinov, V.; Schnell, G.; Schwanda, C.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shan, W.; Sharma, C.; Shiu, J. -G.; Singh, J. B.; Solovieva, E.; Staric, M.; Takizawa, M.; Tanida, K.; Tenchini, F.; Tiwary, R.; Uchida, M.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Vinokurova, A.; Watanuki, S.; Won, E.; Yabsley, B. D.; Yan, W.; Yang, S. B.; Yelton, J.; Yin, J. H.; Yook, Y.; Yuan, C. Z.; Yuan, L.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2025:9(2025). [10.1007/JHEP09(2025)048]

Search for a pentaquark state decaying into pJ/ψ in Υ(1, 2S) inclusive decays at Belle

Campajola M.;De Nardo G.;Di Capua F.;Merola M.;Pardi S.;
2025

Abstract

Using the data samples of 102 million Υ(1S) and 158 million Υ(2S) events collected by the Belle detector, we search for a pentaquark state in the pJ/ψ final state from Υ(1, 2S) inclusive decays. Here, the charge-conjugate is included. We observe clear pJ/ψ production in Υ(1, 2S) decays and measure the branching fractions to be and. We also measure the cross section of inclusive pJ/ψ production in e+e− annihilation to be σ(e+e− → pJ/ψ + anything) = [108 ± 11(stat.) ± 6(syst.)] fb at GeV using an 89.5 fb−1 continuum data sample. There is no significant Pc(4312)+, Pc(4440)+ or Pc(4457)+ signal found in the pJ/ψ final states in Υ(1, 2S) inclusive decays. We determine the upper limits of to be at the 10−6 level.
2025
Search for a pentaquark state decaying into pJ/ψ in Υ(1, 2S) inclusive decays at Belle / Dong, X.; Zou, S. M.; Zhang, H. Y.; Wang, X. L.; Adachi, I.; Ahn, J. K.; Aihara, H.; Al Said, S.; Asner, D. M.; Atmacan, H.; Ayad, R.; Bahinipati, S.; Banerjee, S.; Bessner, M.; Bhardwaj, V.; Biswas, D.; Bodrov, D.; Bozek, A.; Bracko, M.; Branchini, P.; Browder, T. E.; Budano, A.; Campajola, M.; Cervenkov, D.; Chang, M. -C.; Chang, P.; Cheon, B. G.; Cho, H. E.; Cho, K.; Choi, S. -K.; Choi, Y.; Choudhury, S.; Das, S.; De Nardo, G.; De Pietro, G.; Dhamija, R.; Di Capua, F.; Dingfelder, J.; Dolezal, Z.; Dong, T. V.; Ecker, P.; Epifanov, D.; Ferber, T.; Ferlewicz, D.; Fulsom, B. G.; Garg, R.; Gaur, V.; Giri, A.; Goldenzweig, P.; Graziani, E.; Gu, T.; Guan, Y.; Gudkova, K.; Hadjivasiliou, C.; Hayashii, H.; Hazra, S.; Hedges, M. T.; Hou, W. -S.; Hsu, C. -L.; Inami, K.; Ipsita, N.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Jacobs, W. W.; Jia, S.; Jin, Y.; Kalita, D.; Kawasaki, T.; Kim, D. Y.; Kim, K. -H.; Kim, Y. J.; Kim, Y. -K.; Kinoshita, K.; Kodys, P.; Korobov, A.; Korpar, S.; Kovalenko, E.; Krizan, P.; Krokovny, P.; Kuhr, T.; Kumar, R.; Kumita, T.; Kuzmin, A.; Kwon, Y. -J.; Lai, Y. -T.; Lam, T.; Lange, J. S.; Levit, D.; Li, L. K.; Li, Y.; Li, Y. B.; Gioi, L. L.; Libby, J.; Liventsev, D.; Ma, Y.; Masuda, M.; Matsuda, T.; Maurya, S. K.; Meier, F.; Merola, M.; Metzner, F.; Miyabayashi, K.; Mussa, R.; Nakamura, I.; Nakano, T.; Nakao, M.; Natkaniec, Z.; Natochii, A.; Nayak, L.; Nayak, M.; Nishida, S.; Ogawa, S.; Ono, H.; Pakhlova, G.; Pardi, S.; Park, H.; Park, J.; Park, S. -H.; Passeri, A.; Patra, S.; Paul, S.; Pestotnik, R.; Piilonen, L. E.; Podobnik, T.; Prencipe, E.; Prim, M. T.; Russo, G.; Sandilya, S.; Savinov, V.; Schnell, G.; Schwanda, C.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shan, W.; Sharma, C.; Shiu, J. -G.; Singh, J. B.; Solovieva, E.; Staric, M.; Takizawa, M.; Tanida, K.; Tenchini, F.; Tiwary, R.; Uchida, M.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Vinokurova, A.; Watanuki, S.; Won, E.; Yabsley, B. D.; Yan, W.; Yang, S. B.; Yelton, J.; Yin, J. H.; Yook, Y.; Yuan, C. Z.; Yuan, L.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2025:9(2025). [10.1007/JHEP09(2025)048]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/1012050
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