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	Evidence for the two-body charmless baryonic decay b+ -> p(lambda)over-bar
	Aaij, R.40; Adeva, B.39; Adinolfi, M.48; Ajaltouni, Z.5; Akar, S.6; Albrecht, J.10; Alessio, F.40; Alexander, M.53; Ali, S.43; Alkhazov, G.31
刊名	Journal of high energy physics
	2017-04-28
期号	4页码:18
关键词	B physics Branching fraction Flavor physics Hadron-hadron scattering (experiments)
ISSN号	1029-8479
DOI	10.1007/jhep04(2017)162
通讯作者	Rodrigues, a. b.(eduardo.rodrigues@cern.ch)
英文摘要	A search for the rare two-body charmless baryonic decay b+ -> p (lambda) over bar is performed with pp collision data, corresponding to an integrated luminosity of 3 fb(-1), collected by the lhcb experiment at centre-of-mass energies of 7 and 8 tev. an excess of b+ -> p (lambda) over bar candidates with respect to background expectations is seen with a statistical significance of 4.1 standard deviations, and constitutes the first evidence for this decay. the branching fraction, measured using the b+ -> k-s(0)pi(+) decay for normalisation, is b(b+ -> p (lambda) over bar) = (2.4(-0.8)(+)(+1.0) +/- 0.3) x 10(-7), where the first uncertainty is statistical and the second systematic.
WOS关键词	TOOL
WOS研究方向	Physics
WOS类目	Physics, Particles & Fields
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000401067200001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2177422
专题	高能物理研究所
通讯作者	Rodrigues, A. B.
作者单位	1.CBPF, Rio De Janeiro, Brazil 2.Univ Fed Rio de Janeiro, Rio de Janeiro, Brazil 3.Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China 4.Univ Savoie Mont Blanc, CNRS IN2P3, LAPP, Annecy Le Vieux, France 5.Clermont Univ, Univ Blaise Pascal, CNRS IN2P3, LPC, Clermont Ferrand, France 6.Aix Marseille Univ, CNRS IN2P3, CPPM, Marseille, France 7.Univ Paris 11, LAL, CNRS IN2P3, Orsay, France 8.Univ Paris Diderot, Univ Pierre & Marie Curie, LPNHE, CNRS IN2P3, Paris, France 9.Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany 10.Tech Univ Dortmund, Fac Phys, Dortmund, Germany
推荐引用方式 GB/T 7714	Aaij, R.,Adeva, B.,Adinolfi, M.,et al. Evidence for the two-body charmless baryonic decay b+ -> p(lambda)over-bar[J]. Journal of high energy physics,2017(4):18.
APA	Aaij, R..,Adeva, B..,Adinolfi, M..,Ajaltouni, Z..,Akar, S..,...&Zucchelli, S..(2017).Evidence for the two-body charmless baryonic decay b+ -> p(lambda)over-bar.Journal of high energy physics(4),18.
MLA	Aaij, R.,et al."Evidence for the two-body charmless baryonic decay b+ -> p(lambda)over-bar".Journal of high energy physics .4(2017):18.

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