First measurements of absolute branching fractions of the Xi(+)(c) baryon at Belle

First measurements of absolute branching fractions of the Ξ+c baryon at Belle First measurements of absolute branching fractions of the Ξc+ baryon at Belle
  • Li, Y. B.
  • Shen, C. P.
  • Adachi, I
  • Ahn, J. K.
  • Aihara, H.
  • ... Cheon, B. G.
  • 외 189명
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초록

We present the first measurements of the absolute branching fractions of Xi(+)(c) decays into Xi(-)pi(+)pi(+) and pK(-)pi(+) final states. Our analysis is based on a data set of (772 +/- 11) x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) collider. We measure the absolute branching fraction of (B) over bar (0) -> (Lambda) over bar (-)(c)Xi(+)(c) with the Xi(+)(c) recoiling against (Lambda) over bar (- )(c)in (B) over bar (0) decays resulting in B((B) over bar (0) -> (Lambda) over bar (-)(c)Xi(+)(c)) = [1.16 +/- 0.42(stat.) +/- 0.15(syst.)] x 10(-3). We then measure the product branching fractions B((B) over bar (0) -> (Lambda) over bar (-)(c)Xi(+)(c))B(Xi(+)(c) -> Xi(-)pi(+)pi(+)) and B((B) over bar (0) -> (Lambda) over bar (-)(c)Xi(+)(c))B(Xi(+)(c) -> pK(-)pi(+)). Dividing these product branching fractions by (B) over bar (0) -> (Lambda) over bar (-)(c)Xi(+)(c) yields B(Xi(+)(c) -> Xi(-)pi(+)pi(+)) = [2.86 +/- 1.21(stat.) +/- 0.38(syst.)]% and B(Xi(+)(c) -> pK(-)pi(+)) = [0.45 +/- 0.21(stat.) +/- 0.07(syst.)]%. Our result for B(Xi(+)(c) -> Xi(-)pi(+)pi(+)) can be combined with Xi(+)(c) branching fractions measured relative to Xi(+)(c) -> Xi(-)pi(+)pi(+) to set the absolute scale for many Xi(+)(c) branching fractions.

키워드

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제목
First measurements of absolute branching fractions of the Xi(+)(c) baryon at Belle
제목 (타언어)
First measurements of absolute branching fractions of the Ξ+c baryon at Belle First measurements of absolute branching fractions of the Ξc+ baryon at Belle
저자
Li, Y. B.Shen, C. P.Adachi, IAhn, J. K.Aihara, H.Al Said, S.Asner, D. M.Atmacan, H.Aushev, T.Ayad, R.Babu, VBakich, A. M.Ban, Y.Bansal, VBehera, P.Beleno, C.Berger, M.Bhardwaj, VBhuyan, B.Bilka, T.Biswal, J.Bobrov, A.Bozek, A.Bracko, M.Browder, T. E.Campajola, M.Cao, L.Cervenkov, D.Chekelian, VChen, A.Cheon, B. G.Chilikin, K.Cho, H. E.Cho, K.Choi, Y.Choudhury, S.Cinabro, D.Cunliffe, S.Di Carlo, S.Dolezal, Z.Dossett, D.Eidelman, S.Epifanov, D.Fast, J. E.Ferber, T.Fulsom, B. G.Garg, R.Gaur, VGabyshev, N.Garmash, A.Giri, A.Goldenzweig, P.Grube, B.Grzymkowska, O.Haba, J.Hara, T.Hayasaka, K.Hayashii, H.Hou, W-SIijima, T.Inami, K.Inguglia, G.Ishikawa, A.Iwasaki, M.Iwasaki, Y.Jacobs, W. W.Jia, S.Jin, Y.Joffe, D.Joo, K. K.Kaliyar, A. B.Karyan, G.Kato, Y.Kawasaki, T.Kichimi, H.Kim, C. H.Kim, D. Y.Kim, H. J.Kim, K. T.Kim, S. H.Kinoshita, K.Kody, P.Korpar, S.Kotchetkov, D.Krizan, P.Kroeger, R.Krokovny, P.Kuhr, T.Kulasiri, R.Kuzmin, A.Kwon, Y-JLalwani, K.Lange, J. S.Lee, I. S.Lee, J. K.Lee, J. Y.Lee, S. C.Li, C. H.Li, L. K.Li Gioi, L.Libby, J.Lieret, K.Liventsev, D.Lu, P-CMacNaughton, J.Masuda, M.Matsuda, T.Matvienko, D.Merola, M.Miyabayashi, K.Miyata, H.Mizuk, R.Mohanty, G. B.Moon, T. J.Mussa, R.Nakao, M.Nath, K. J.Nayak, M.Niiyama, M.Nisar, N. K.Nishida, S.Nishimura, K.Ogawa, S.Ono, H.Onuki, Y.Pakhlov, P.Pakhlova, G.Pal, B.Pardi, S.Park, H.Park, S-HPatra, S.Paul, S.Pedlar, T. K.Pestotnik, R.Piilonen, L. E.Popov, VPrencipe, E.Ritter, M.Rostomyan, A.Russo, G.Sahoo, D.Sakai, Y.Salehi, M.Santelj, L.Sanuki, T.Savinov, VSchneider, O.Schnell, G.Schueler, J.Schwanda, C.Schwartz, A. J.Seino, Y.Senyo, K.Sevior, M. E.Shebalin, VShiu, J-GShwartz, B.Simon, F.Sokolov, A.Solovieva, E.Staric, M.Stottler, Z. S.Strube, J. F.Sumihama, M.Sumiyoshi, T.Takizawa, M.Tamponi, U.Tanida, K.Tenchini, F.Uchida, M.Uglov, T.Unno, Y.Uno, S.Ushiroda, Y.Vahsen, S. E.Van Tonder, R.Varner, G.Vinokurova, A.Wang, B.Wang, C. H.Wang, M-ZWang, P.Watanuki, S.Won, E.Yang, S. B.Ye, H.Yelton, J.Yin, J. H.Yuan, C. Z.Yusa, Y.Zhang, Z. P.Zhilich, VZhukova, VZhulanov, V
DOI
10.1103/PhysRevD.100.031101
발행일
2019-08
유형
Article
저널명
Physical Review d
100
3
페이지
1 ~ 8

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