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	Author	BABAR Collaboration (Lees, J.P. et al); Martinez-Vidal, F.; Oyanguren, A.
	Title	Measurements of the Absolute Branching Fractions of B-+/- -> K(+/-)Xc(c)over-bar			Type	Journal Article
	Year	2020	Publication	Physical Review Letters	Abbreviated Journal	Phys. Rev. Lett.
	Volume	124	Issue	15	Pages	152001 - 8pp
	Keywords
	Abstract	A study of the two-body decays B-+/- -> Xc (c) over barK +/-, where X-c (c) over bar refers to one charmonium state, is reported by the BABAR Collaboration using a data sample of 424 fb(-1). The absolute determination of branching fractions for these decays are significantly improved compared to previous BABAR measurements. Evidence is found for the decay B-+/- -> X(3872)K+ at the 3 sigma level. The absolute branching fraction B[B+ -> X(3872)K+] = [2.1 +/- 0.6(stat) +/- 0.3(syst)] x 10(-4) is measured for the first time. It follows that B[X(3872) -> J/psi pi(+)pi(-)] = (4.1 +/- 1.3)%, supporting the hypothesis of a molecular component for this resonance.
	Address	[Lees, J. P.; Poireau, V; Tisserand, V; BABAR Collaboration] Univ Savoie, Lab Annecy le Vieux Phys Particules LAPP, IN2P3, CNRS, F-74941 Annecy Le Vieux, France
	Corporate Author				Thesis
	Publisher	Amer Physical Soc	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0031-9007	ISBN		Medium
	Area		Expedition		Conference
	Notes	WOS:000526038600003			Approved	no
	Is ISI	yes	International Collaboration	yes
	Call Number	IFIC @ pastor @			Serial	4373
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