Measurement of the D+s − D−s production asymmetry in 7 TeV pp collisions

Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN

dc.contributor	Universitat Ramon Llull. La Salle
dc.contributor	CERN
dc.contributor.author	Calvo Gómez, Míriam
dc.contributor.author	Camboni, Alessandro
dc.contributor.author	Vilasís Cardona, Xavier
dc.contributor.author	LHCb Collaboration - CERN
dc.date.accessioned	2020-05-19T15:02:47Z
dc.date.accessioned	2023-10-02T06:35:19Z
dc.date.available	2020-05-19T15:02:47Z
dc.date.available	2023-10-02T06:35:19Z
dc.date.created	2012
dc.date.issued	2012-07-09
dc.identifier.uri	http://hdl.handle.net/20.500.14342/3337
dc.description.abstract	Heavy quark production in 7 TeV centre-of-mass energy pp collisions at the LHC is not necessarily flavour symmetric. The production asymmetry, A_P, between Ds+ and Ds- mesons is studied using the \phi\pi(+/-) decay mode in a data sample of 1.0/fb collected with the LHCb detector. The difference between \pi+ and \pi- detection efficiencies is determined using the ratios of fully reconstructed to partially reconstructed D*(+/-) decays. The overall production asymmetry in the Ds rapidity region 2.0 to 4.5 with transverse momentum larger than 2 GeV is measured to be A_P=(-0.33 +/- 0.22 +/- 0.10)%. This result can constrain models of heavy flavour production.	eng
dc.format.extent	13 p.	cat
dc.language.iso	eng	cat
dc.publisher	Elsevier	cat
dc.relation.ispartof	Physics Letters B, 2012, Vol. 713, No. 3, (Juliol)	cat
dc.rights	Attribution-NonCommercial-NoDerivatives 4.0 International
dc.rights	© CERN
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.source	RECERCAT (Dipòsit de la Recerca de Catalunya)
dc.subject.other	Gran col·lisionador d'hadrons (França i Suïssa)	cat
dc.subject.other	Física--Mesuraments	cat
dc.title	Measurement of the D+s − D−s production asymmetry in 7 TeV pp collisions	cat
dc.type	info:eu-repo/semantics/article	cat
dc.type	info:eu-repo/semantics/publishedVersion	cat
dc.rights.accessLevel	info:eu-repo/semantics/openAccess
dc.embargo.terms	cap	cat
dc.subject.udc	53
dc.identifier.doi	http://dx.doi.org/10.1016/j.physletb.2012.06.001	cat

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