We search for excited charmed baryons in the Λc+η system using a data sample corresponding to an integrated luminosity of 980 fb-1. The data were collected by the Belle detector at the KEKB e+e- asymmetric-energy collider. No significant signals are found in the Λc+η mass spectrum, including the known Λc(2880)+ and Λc(2940)+. Clear Λc(2880)+ and Λc(2940)+ signals are observed in the pD0 mass spectrum. We set upper limits at 90% credibility level on ratios of branching fractions of Λc(2880)+ and Λc(2940)+ decaying to Λc+η relative to ςc(2455)π of <0.13 for the Λc(2880)+ and <1.11 for the Λc(2940)+. We measure ratios of branching fractions of Λc(2880)+ and Λc(2940)+ decaying to pD0 relative to ςc(2455)π of 0.75±0.03(stat)±0.07(syst) for the Λc(2880)+ and 3.59±0.21(stat)±0.56(syst) for the Λc(2940)+.

Search for charmed baryons in the Λc+ η system and measurement of the branching fractions of Λc (2880)+ and Λc (2940)+ decaying to Λc+ η and pD0 relative to ςc (2455)π / Li, S. X.; Shen, C. P.; Adachi, I.; Ahn, J. K.; Aihara, H.; Asner, D. M.; Atmacan, H.; Aushev, T.; Ayad, R.; Banerjee, S.; Belous, K.; Bennett, J.; Bessner, M.; Bilka, T.; Biswas, D.; Bodrov, D.; Bozek, A.; Bracko, M.; Branchini, P.; Browder, T. E.; Budano, A.; Campajola, M.; Chang, M. -C.; Cheon, B. G.; Chilikin, K.; Cho, H. E.; Cho, K.; Choi, S. -K.; Choi, Y.; Choudhury, S.; Dash, N.; De Nardo, G.; De Pietro, G.; Dhamija, R.; Dingfelder, J.; Dolezal, Z.; Dong, T. V.; Dubey, S.; Ecker, P.; Ferber, T.; Fulsom, B. G.; Gaur, V.; Garmash, A.; Goldenzweig, P.; Graziani, E.; Grube, B.; Guan, Y.; Gudkova, K.; Hadjivasiliou, C.; Hsu, C. -L.; Ipsita, N.; Itoh, R.; Iwasaki, M.; Jacobs, W. W.; Ji, Q. P.; Jia, S.; Jin, Y.; Joo, K. K.; Kiesling, C.; Kim, D. Y.; Kim, Y. J.; Kinoshita, K.; Kodys, P.; Korobov, A.; Korpar, S.; Kovalenko, E.; Krizan, P.; Krokovny, P.; Kuhr, T.; Kumar, R.; Kumara, K.; Kwon, Y. -J.; Li, L. K.; Li, Y.; Li, Y. B.; Liventsev, D.; Masuda, M.; Maurya, S. K.; Meier, F.; Merola, M.; Miyabayashi, K.; Mizuk, R.; Mussa, R.; Nakano, T.; Nakao, M.; Natochii, A.; Nayak, M.; Nishida, S.; Pakhlov, P.; Pakhlova, G.; Pardi, S.; Park, J.; Park, S. -H.; Patra, S.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Podobnik, T.; Prencipe, E.; Prim, M. T.; Russo, Guido; Sandilya, S.; Savinov, V.; Schnell, G.; Schwanda, C.; Seino, Y.; Senyo, K.; Shiu, J. -G.; Solovieva, E.; Staric, M.; Sumihama, M.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Uchida, M.; Uglov, T.; Uno, S.; Wang, E.; Won, E.; Yabsley, B. D.; Yan, W.; Yelton, J.; Yin, J. H.; Yuan, L.; Zhilich, V.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 110:3(2024). [10.1103/PhysRevD.110.032021]

Search for charmed baryons in the Λc+ η system and measurement of the branching fractions of Λc (2880)+ and Λc (2940)+ decaying to Λc+ η and pD0 relative to ςc (2455)π

Campajola M.;De Nardo G.;Merola M.;Pardi S.;Russo Guido;
2024

Abstract

We search for excited charmed baryons in the Λc+η system using a data sample corresponding to an integrated luminosity of 980 fb-1. The data were collected by the Belle detector at the KEKB e+e- asymmetric-energy collider. No significant signals are found in the Λc+η mass spectrum, including the known Λc(2880)+ and Λc(2940)+. Clear Λc(2880)+ and Λc(2940)+ signals are observed in the pD0 mass spectrum. We set upper limits at 90% credibility level on ratios of branching fractions of Λc(2880)+ and Λc(2940)+ decaying to Λc+η relative to ςc(2455)π of <0.13 for the Λc(2880)+ and <1.11 for the Λc(2940)+. We measure ratios of branching fractions of Λc(2880)+ and Λc(2940)+ decaying to pD0 relative to ςc(2455)π of 0.75±0.03(stat)±0.07(syst) for the Λc(2880)+ and 3.59±0.21(stat)±0.56(syst) for the Λc(2940)+.
2024
Search for charmed baryons in the Λc+ η system and measurement of the branching fractions of Λc (2880)+ and Λc (2940)+ decaying to Λc+ η and pD0 relative to ςc (2455)π / Li, S. X.; Shen, C. P.; Adachi, I.; Ahn, J. K.; Aihara, H.; Asner, D. M.; Atmacan, H.; Aushev, T.; Ayad, R.; Banerjee, S.; Belous, K.; Bennett, J.; Bessner, M.; Bilka, T.; Biswas, D.; Bodrov, D.; Bozek, A.; Bracko, M.; Branchini, P.; Browder, T. E.; Budano, A.; Campajola, M.; Chang, M. -C.; Cheon, B. G.; Chilikin, K.; Cho, H. E.; Cho, K.; Choi, S. -K.; Choi, Y.; Choudhury, S.; Dash, N.; De Nardo, G.; De Pietro, G.; Dhamija, R.; Dingfelder, J.; Dolezal, Z.; Dong, T. V.; Dubey, S.; Ecker, P.; Ferber, T.; Fulsom, B. G.; Gaur, V.; Garmash, A.; Goldenzweig, P.; Graziani, E.; Grube, B.; Guan, Y.; Gudkova, K.; Hadjivasiliou, C.; Hsu, C. -L.; Ipsita, N.; Itoh, R.; Iwasaki, M.; Jacobs, W. W.; Ji, Q. P.; Jia, S.; Jin, Y.; Joo, K. K.; Kiesling, C.; Kim, D. Y.; Kim, Y. J.; Kinoshita, K.; Kodys, P.; Korobov, A.; Korpar, S.; Kovalenko, E.; Krizan, P.; Krokovny, P.; Kuhr, T.; Kumar, R.; Kumara, K.; Kwon, Y. -J.; Li, L. K.; Li, Y.; Li, Y. B.; Liventsev, D.; Masuda, M.; Maurya, S. K.; Meier, F.; Merola, M.; Miyabayashi, K.; Mizuk, R.; Mussa, R.; Nakano, T.; Nakao, M.; Natochii, A.; Nayak, M.; Nishida, S.; Pakhlov, P.; Pakhlova, G.; Pardi, S.; Park, J.; Park, S. -H.; Patra, S.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Podobnik, T.; Prencipe, E.; Prim, M. T.; Russo, Guido; Sandilya, S.; Savinov, V.; Schnell, G.; Schwanda, C.; Seino, Y.; Senyo, K.; Shiu, J. -G.; Solovieva, E.; Staric, M.; Sumihama, M.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Uchida, M.; Uglov, T.; Uno, S.; Wang, E.; Won, E.; Yabsley, B. D.; Yan, W.; Yelton, J.; Yin, J. H.; Yuan, L.; Zhilich, V.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 110:3(2024). [10.1103/PhysRevD.110.032021]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/985083
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