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First measurement of the Lambda(+)(c) -> p eta ' decay
- Authors
- Li, S. X.; Cui, J. X.; Shen, C. P.; Adachi, I; Aihara, H.; Al Said, S.; Asner, D. M.; Atmacan, H.; Aushev, T.; Ayad, R.; Babu, V; Behera, P.; Belous, K.; Bessner, M.; Bhardwaj, V; Bhuyan, B.; Bilka, T.; Bodrov, D.; Bonvicini, G.; Borah, J.; Bozek, A.; Bracko, M.; Branchini, P.; Browder, T. E.; Budano, A.; Campajola, M.; Chang, M-C; Chang, P.; Chekelian, V; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, H. E.; Cho, K.; Cho, S-J; Choi, S-K; Choi, Y.; Choudhury, S.; Cinabro, D.; Cunliffe, S.; Das, S.; Dash, N.; De Nardo, G.; De Pietro, G.; Dhamija, R.; Di Capua, F.; Dolezal, Z.; Dong, T., V; Epifanov, D.; Ferber, T.; Ferlewicz, D.; Fulsom, B. G.; Garg, R.; Gaur, V; Gabyshev, N.; Giri, A.; Goldenzweig, P.; Golob, B.; Graziani, E.; Gu, T.; Hara, T.; Hayasaka, K.; Hayashii, H.; Hou, W-S; Inami, K.; Ishikawa, A.; Iwasaki, M.; Iwasaki, Y.; Jacobs, W. W.; Jang, E-J; Jia, S.; Jin, Y.; Joo, K. K.; Kahn, J.; Kaliyar, A. B.; Kang, K. H.; Kato, Y.; Kawasaki, T.; Kichimi, H.; Kiesling, C.; Kim, C. H.; Kim, D. Y.; Kim, Y-K; Kinoshita, K.; Kodys, P.; Konno, T.; Korobov, A.; Korpar, S.; Kovalenko, E.; Krizan, P.; Kroeger, R.; Krokovny, P.; Kumar, M.; Kumar, R.; Kumara, K.; Kwon, Y-J; Lam, T.; Laurenza, M.; Lee, S. C.; Li, J.; Li, L. K.; Li, Y.; Li Gioi, L.; Libby, J.; Liventsev, D.; Martini, A.; Masuda, M.; Matsuda, T.; Matvienko, D.; Maurya, S. K.; Meier, F.; Merola, M.; Miyabayashi, K.; Mizuk, R.; Mussa, R.; Nakao, M.; Narwal, D.; Natkaniec, Z.; Natochii, A.; Nayak, L.; Nisar, N. K.; Nishida, S.; Nishimura, K.; Ogawa, K.; Ogawa, S.; Ono, H.; Oskin, P.; Pakhlov, P.; Pakhlova, G.; Pang, T.; Pardi, S.; Park, S-H; Patra, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Podobnik, T.; Popov, V; Prim, M. T.; Rohrken, M.; Rostomyan, A.; Rout, N.; Russo, G.; Sahoo, D.; Sandilya, S.; Sangal, A.; Sanuki, T.; Savinov, V; Schnell, G.; Schueler, J.; Schwanda, C.; Schwartz, A. J.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Sharma, C.; Shebalin, V; Shiu, J-G; Shwartz, B.; Simon, F.; Solovieva, E.; Stanic, S.; Staric, M.; Stottler, Z. S.; Sumihama, M.; Sumisawa, K.; Sumiyoshi, T.; Sutcliffe, W.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Trabelsi, K.; Uchida, M.; Unno, Y.; Uno, K.; Uno, S.; Urquijo, P.; Vahsen, S. E.; Van Tonder, R.; Varner, G.; Vinokurova, A.; Waheed, E.; Wang, D.; Wang, E.; Wang, M-Z; Watanuki, S.; Won, E.; Xu, X.; Yabsley, B. D.; Yan, W.; Ye, H.; Yin, J. H.; Yusa, Y.; Zhai, Y.; Zhilich, V; Zhukova, V
- Issue Date
- Mar-2022
- Publisher
- SPRINGER
- Keywords
- Branching fraction; e(+)-e(-) Experiments; Charm Physics; Particle and Resonance Production
- Citation
- JOURNAL OF HIGH ENERGY PHYSICS, v.2022, no.3
- Journal Title
- JOURNAL OF HIGH ENERGY PHYSICS
- Volume
- 2022
- Number
- 3
- ISSN
- 1029-8479
- Abstract
- We present the first measurement of the branching fraction of the singly Cabibbo-suppressed (SCS) decay Lambda(+)(c) -> p eta' with eta' -> eta pi(+)pi(-), using a data sample cor- responding to an integrated luminosity of 981 fb(-1), collected by the Belle detector at the KEKB e(+)e(-) asymmetric-energy collider. A significant Lambda(+)(c) -> p eta' signal is observed for the first time with a signal significance of 5.4 sigma. The relative branching fraction with respect to the normalization mode Lambda(+)(c) -> pK(-) pi(+) is measured to be B(Lambda(+)(c) -> p eta')/B(Lambda(+)(c) -> pK(-) pi(+)) = (7.54 +/- 1.32 +/- 0.73) x 10(-3), where the uncertainties are statistical and systematic, respectively. Using the world-average value of B(Lambda(+)(c) -> pK(-)pi(+)) = (6.28 +/- 0.32) x 10(-2), we obtain B(Lambda(+)(c) -> p eta') = (4.73 +/- 0.82 +/- 0.46 +/- 0.24) x 10(-4), where the uncertainties are statistical, systematic, and from B(Lambda(+)(c) -> pK(-) pi(+)), respectively.
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Related Researcher
- Kim, D. Y.
- College of Natural Sciences (Department of Physics)