Measurements of the branching fractions B(B- -> (Lambda)over-bar(c)(-)Xi(c)'(0)), B(B- -> (Lambda)over-bar(c)(-)Xi(c)(2645)(0)) and B(B- -> (Lambda)over-bar(c)(-)Xi(c)(2790)(0))

Li, Y.; Li, Y. B.; Shen, C. P.; Adachi, I; Aihara, H.; Asner, D. M.; Atmacan, H.; Aulchenko, V; Ayad, R.; Babu, V; Badhrees, I; Bakich, A. M.; Behera, P.; Bilka, T.; Biswal, J.; Bobrov, A.; Bonvicini, G.; Bozek, A.; Bracko, M.; Browder, T. E.; Campajola, M.; Cao, L.; Cervenkov, D.; Chang, P.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, H. E.; Cho, K.; Choi, S-K; Choi, Y.; Cinabro, D.; Cunliffe, S.; De Nardo, G.; Di Capua, F.; Di Carlo, S.; Dolezal, Z.; Dong, T.; Eidelman, S.; Fast, J. E.; Ferber, T.; Ferlewicz, D.; Fulsom, B. G.; Garg, R.; Gaur, V; Gabyshev, N.; Garmash, A.; Giri, A.; Goldenzweig, P.; Golob, B.; Grube, B.; Hara, T.; Hayasaka, K.; Hayashii, H.; Hou, W-S; Hsu, C-L; Iijima, T.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Jacobs, W. W.; Jia, S.; Jin, Y.; Joo, K. K.; Kang, K. H.; Karyan, G.; Kichimi, H.; Kim, C. H.; Kim, D. Y.; Kim, S. H.; Kinoshita, K.; Kodys, P.; Korpar, S.; Kröger, R.; Krokovny, P.; Kuhr, Thomas ; Kulasiri, R.; Kuzmin, A.; Kwon, Y-J; Lalwani, K.; Lange, J. S.; Lee, I. S.; Lee, S. C.; Lewis, P.; Li, C. H.; Li, L. K.; Li Gioi, L.; Libby, J.; Lieret, K.; Liventsev, D.; MacQueen, C.; Masuda, M.; Matsuda, T.; Matvienko, D.; Merola, M.; Miyata, H.; Mizuk, R.; Mussa, R.; Nakao, M.; Nath, K. J.; Nayak, M.; Niiyama, M.; Nisar, N. K.; Nishida, S.; Nishimura, K.; Ogawa, S.; Ono, H.; Onuki, Y.; Oskin, P.; Pakhlov, P.; Pakhlova, G.; Pang, T.; Pardi, S.; Park, H.; Park, S-H; Patra, S.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Podobnik, T.; Popov, V; Prencipe, E.; Prim, M. T.; Roehrken, M.; Rostomyan, A.; Rout, N.; Russo, G.; Sahoo, D.; Sakai, Y.; Sandilya, S.; Santelj, L.; Savinov, V; Schneider, O.; Schnell, G.; Schwanda, C.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shiu, J-G; Shwartz, B.; Sokolov, A.; Solovieva, E.; Stanic, S.; Staric, M.; Stottler, Z. S.; Sumihama, M.; Sumiyoshi, T.; Sutcliffe, W.; Takizawa, M.; Tanida, K.; Tenchini, F.; Trabelsi, K.; Uchida, M.; Uglov, T.; Unno, Y.; Uno, S.; Van Tonder, R.; Varner, G.; Vinokurova, A.; Wang, C. H.; Wang, M-Z; 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 and Zhulanov, V (2019): Measurements of the branching fractions B(B- -> (Lambda)over-bar(c)(-)Xi(c)'(0)), B(B- -> (Lambda)over-bar(c)(-)Xi(c)(2645)(0)) and B(B- -> (Lambda)over-bar(c)(-)Xi(c)(2790)(0)). In: Physical Review D, Vol. 100, No. 11, 112010

Abstract

Using the data sample of 711 fb(-1) of Upsilon(4S) on-resonance data taken by the Belle detector at the KEKB asymmetric-energy electron-positron collider, we present the first measurements of branching fractions of the decays B- -> (Lambda) over bar (-)(c)Xi('0)(c), B- -> (Lambda) over bar (-)(c)Xi(c)(2645)(0) , and B- -> (Lambda) over bar (-)(c)Xi(c) (2790)(0). The signal yields for these decays are extracted from the recoil mass spectrum of the system recoiling against (Lambda) over bar (- )(c)baryons in selected B(-)candidates. The branching fraction of B- -> (Lambda) over bar (-)(c)Xi(c)(2790)(0) is measured to be (1.1 +/- 0.4 +/- 0.2) x 10(-3) , where the first uncertainty is statistical and the second is systematic. The 90% credibility level upper limits on B(B- -> (Lambda) over bar (-)(c)Xi('0)(c))( )and B(B- -> (Lambda) over bar (-)(c)Xi(c)(2645)(0) are determined to be 6.5 x 10(-4) and 7.9 x 10(-4) , respectively.

• Item Type: Journal article
• Faculties: Physics
• Subjects: 500 Science > 530 Physics
• ISSN: 2470-0010
• Language: English