中国科学院机构知识库网格系统: Evidence for the singly cabibbo suppressed decay lambda(+)(c) -> p eta and search for lambda(+)(c) -> p pi(0)

Evidence for the singly cabibbo suppressed decay lambda(+)(c) -> p eta and search for lambda(+)(c) -> p pi(0)

文献类型：期刊论文


作者	Ablikim, M.1; Achasov, M. N.9,67; Ahmed, S.14; Ai, X. C.1; Albayrak, O.5; Albrecht, M.4; Ambrose, D. J.51; Amoroso, A.3,56,58; An, F. F.1; An, Q.53,63
刊名	Physical review d
出版日期	2017-06-30
卷号	95 期号:11 页码:8
ISSN号	2470-0010
DOI	10.1103/physrevd.95.111102
通讯作者	Ablikim, m.()
英文摘要	We study the singly cabibbo suppressed decays lambda(+)(c) -> p eta and lambda(+)(c) -> p pi(0) using lambda(+)(c)(lambda) over bar (-)(c) pairs produced by e(+)e(-) collisions at a center-of-mass energy of root s = 4.6 gev. the data sample was collected by the besiii detector at the bepcii collider and corresponds to an integrated luminosity of 567 pb(-1). we find the first evidence for the decay lambda(+)(c) -> p eta with a statistical significance of 4.2 sigma and measure its branching fraction to be b(lambda(+)(c) -> p eta) = (1.24 +/- 0.28(stat) +/- 0.10(sys)) x 10(-3). no significant lambda(+)(c) -> p pi(0) signal is observed. we set an upper limit on its branching fraction b(lambda(+)(c) -> p pi(0)) < 2.7 x 10(-4) at the 90% confidence level.
WOS关键词	NONLEPTONIC DECAYS ; CHARMED BARYONS ; QUARK ; MODEL
WOS研究方向	Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Particles & Fields
语种	英语
WOS记录号	WOS:000404472900001
出版者	AMER PHYSICAL SOC
URI标识	http://www.irgrid.ac.cn/handle/1471x/2177341
专题	高能物理研究所
通讯作者	Ablikim, M.
作者单位	1.Inst High Energy Phys, Beijing 100049, Peoples R China 2.Beihang Univ, Beijing 100191, Peoples R China 3.Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China 4.Ruhr Univ Bochum, D-44780 Bochum, Germany 5.Carnegie Mellon Univ, Pittsburgh, PA 15213 USA 6.Cent China Normal Univ, Wuhan 430079, Peoples R China 7.China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China 8.COMSATS Inst Informat Technol, Def Rd,Raiwind Rd, Lahore 54000, Pakistan 9.GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia 10.GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany
推荐引用方式 GB/T 7714	Ablikim, M.,Achasov, M. N.,Ahmed, S.,et al. Evidence for the singly cabibbo suppressed decay lambda(+)(c) -> p eta and search for lambda(+)(c) -> p pi(0)[J]. Physical review d,2017,95(11):8.
APA	Ablikim, M..,Achasov, M. N..,Ahmed, S..,Ai, X. C..,Albayrak, O..,...&Zou, J. H..(2017).Evidence for the singly cabibbo suppressed decay lambda(+)(c) -> p eta and search for lambda(+)(c) -> p pi(0).Physical review d,95(11),8.
MLA	Ablikim, M.,et al."Evidence for the singly cabibbo suppressed decay lambda(+)(c) -> p eta and search for lambda(+)(c) -> p pi(0)".Physical review d 95.11(2017):8.

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Evidence for the singly cabibbo suppressed decay lambda(+)(c) -> p eta and search for lambda(+)(c) -> p pi(0)

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