Details

Autor(en) / Beteiligte

• Ablikim, M
• Achasov, M N
• Ai, X C
• Albayrak, O
• An, F F
• An, Q
• Bennett, J V
• Bianchi, F
• Cai, X
• Cakir, O
• Chelkov, G
• Chen, G
• Chen, H S
• Chen, X
• Chen, X R
• Chu, X K
• Cibinetto, G
• Dedovich, D
• Dong, C
• Duan, P F
• Felici, G
• Feng, C Q
• Fioravanti, E
• Fu, C D
• Gao, Y
• Guo, Y P
• Heng, Y K
• Hu, T
• Huang, Y
• Hussain, T
• Ji, Q P
• Jiang, X Y
• Jiao, J B
• Johansson, T
• Kalantar-Nayestanaki, N
• Kang, X S
• Kupsc, A
• Lara, M
• Li, G
• Li, Lei
• Li, Q Y
• Li, W D
• Li, W G
• Liu, C X
• Liu, H H
• Liu, H M
• Liu, J
• Liu, X
• Lu, H J
• Lu, Y
• Luo, M X
• Luo, X L
• Ma, X N
• Mitchell, R E
• Muchnoi, N Yu
• Nerling, F
• Ning, Z
• Niu, S L
• Niu, X Y
• Pacetti, S
• Pan, Y
• Qi, M
• Ripka, M
• Shen, X Y
• Song, X Y
• Tang, C J
• Varner, G S
• Wang, D Y
• Wang, K
• Wang, P L
• Wang, Z
• Weidenkaff, P
• Xia, Y
• Xiao, D
• Xiao, Z J
• Xiu, Q L
• Xu, Q J
• Yang, H J
• Ye, M H
• Yin, J H
• Yu, B X
• Yuan, C Z
• Yuan, W L
• Zeng, Y
• Zhang, B Y
• Zhang, C
• Zhang, C C
• Zhang, Y
• Zhang, Y T
• Zhao, G
• Zhao, S J
• Zhao, T C
• Zhao, Y B
• Zheng, B
• Zhou, L
• Zhou, X Y
• Zhu, K
• Zhu, Y S
• Zhu, Z A
• Zou, B S

Titel

Measurements of Absolute Hadronic Branching Fractions of the Λ_{c}^{+} Baryon

Ist Teil von

• Physical review letters, 2016-02, Vol.116 (5), p.052001-052001

Ort / Verlag

United States

Erscheinungsjahr

2016

Quelle

PROLA - Physical Review Online Archive

Beschreibungen/Notizen

• We report the first measurement of absolute hadronic branching fractions of Λ_{c}^{+} baryon at the Λ_{c}^{+}Λ[over ¯]_{c}^{-} production threshold, in the 30 years since the Λ_{c}^{+} discovery. In total, 12 Cabibbo-favored Λ_{c}^{+} hadronic decay modes are analyzed with a double-tag technique, based on a sample of 567  pb^{-1} of e^{+}e^{-} collisions at sqrt[s]=4.599  GeV recorded with the BESIII detector. A global least-squares fitter is utilized to improve the measured precision. Among the measurements for twelve Λ_{c}^{+} decay modes, the branching fraction for Λ_{c}^{+}→pK^{-}π^{+} is determined to be (5.84±0.27±0.23)%, where the first uncertainty is statistical and the second is systematic. In addition, the measurements of the branching fractions of the other 11 Cabibbo-favored hadronic decay modes are significantly improved.