NAGIOS: RODERIC FUNCIONANDO

Study of the kinematic dependences of Lambda(0)(b) production in pp collisions and a measurement of the Lambda(0)(b) -> Lambda(+)(c)pi(-) branching fraction

Repositori DSpace/Manakin

Valencià Castellano

Inici
Investigació
e-prints
22 - Física
Visualitza element

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

Study of the kinematic dependences of Lambda(0)(b) production in pp collisions and a measurement of the Lambda(0)(b) -> Lambda(+)(c)pi(-) branching fraction

Mostra el registre parcial de l'element

dc.contributor.author	LHCb Collaboration
dc.contributor.author	Martínez Vidal, Fernando
dc.contributor.author	Oyanguren Campos, Arantza
dc.contributor.author	Ruiz Valls, Pablo
dc.contributor.author	Sánchez Mayordomo, Carlos
dc.date.accessioned	2016-04-20T10:23:11Z
dc.date.available	2016-04-20T10:23:11Z
dc.date.issued	2014
dc.identifier.citation	LHCb Collaboration Martínez Vidal, Fernando Oyanguren Campos, Arantza Ruiz Valls, Pablo Sánchez Mayordomo, Carlos 2014 Study of the kinematic dependences of Lambda(0)(b) production in pp collisions and a measurement of the Lambda(0)(b) -> Lambda(+)(c)pi(-) branching fraction Journal Of High Energy Physics 08 8 143-1 143-19
dc.identifier.uri	http://hdl.handle.net/10550/52885
dc.description.abstract	The kinematic dependences of the relative production rates, f(Lambda b)(0)/f(d), of Lambda(0)(b) baryons and B-0 mesons are measured using Lambda(0)(b) -> Lambda(+)(c)pi(-) and (B) over bar (0) -> D+pi(-) decays. The measurements use proton-proton collision data, corresponding to an integrated luminosity of 1 fb(-1) at a centre-of-mass energy of 7 TeV, recorded in the forward region with the LHCb experiment. The relative production rates are observed to depend on the transverse momentum, pT, and pseudorapidity, eta, of the beauty hadron, in the studied kinematic region 1.5 < pT < 40 GeV/c and 2 < eta < 5. Using a previous LHCb measurement of f(Lambda b)(0)/f(d) in semileptonic decays, the branching fraction B (Lambda(0)(b) -> Lambda(+)(c)pi(-)) = (4.30 +/- 0.03(-0.11)(+0.12)+/- 0.26 +/- 0.21) x 10(-3) is obtained, where the first uncertainty is statistical, the second is systematic, the third is from the previous LHCb measurement of f(Lambda b)(0)/f(d) and the fourth is due to the (B) over bar (0) -> D+pi(-) branching fraction. This is the most precise measurement of a Lambda(0)(b) branching fraction to date.
dc.language.iso	eng
dc.relation.ispartof	Journal Of High Energy Physics, 2014, vol. 08, num. 8, p. 143-1-143-19
dc.subject	Física nuclear
dc.title	Study of the kinematic dependences of Lambda(0)(b) production in pp collisions and a measurement of the Lambda(0)(b) -> Lambda(+)(c)pi(-) branching fraction
dc.type	journal article	es_ES
dc.date.updated	2016-04-20T10:23:11Z
dc.identifier.doi	10.1007/JHEP08(2014)143
dc.identifier.idgrec	099768
dc.rights.accessRights	open access	es_ES