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Transverse momentum spectra of inclusive b jets in pPb collisions at $\sqrt{s_{NN}} = $ 5.02 TeV

2016-03-10Journal article Open access
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dc.contributor.authorCMS collaboration (2311 authors)
dc.contributor.authorHollar, Jonathan
dc.contributor.authorCalpas, Betty
dc.contributor.authorNayak, Aruna
dc.contributor.authorBargassa, Pedrame
dc.contributor.authorBeirão Da Cruz E Silva, Cristóvão
dc.contributor.authorDi Francesco, Agostino
dc.contributor.authorFaccioli, Pietro
dc.contributor.authorFerreira Parracho, Pedro Guilherme
dc.contributor.authorGallinaro, Michele
dc.contributor.authorLeonardo, Nuno
dc.contributor.authorLloret Iglesias, Lara
dc.contributor.authorNguyen, Federico
dc.contributor.authorRodrigues Antunes, Joao
dc.contributor.authorSeixas, Joao
dc.contributor.authorToldaiev, Oleksii
dc.contributor.authorVadruccio, Daniele
dc.contributor.authorVarela, Joao
dc.contributor.authorVischia, Pietro
dc.contributor.authorDavid Tinoco Mendes, Andre
dc.contributor.authorSilva, Pedro
dc.contributor.authorMusella, Pasquale
dc.contributor.authorPela, Joao
dc.date.accessioned2019-02-04T08:21:42Z
dc.date.available2019-02-04T08:21:42Z
dc.date.issued2016-03-10
dc.date.updated2019-02-04T08:21:42Z
dc.description.abstractWe present a measurement of b jet transverse momentum (pT) spectra in proton-lead (pPb) collisions using a dataset corresponding to about 35 nb−1 collected with the CMS detector at the LHC. Jets from b quark fragmentation are found by exploiting the long lifetime of hadrons containing a b quark through tagging methods using distributions of the secondary vertex mass and displacement. Extracted cross sections for b jets are scaled by the effective number of nucleon–nucleon collisions and are compared to a reference obtained from pythia simulations of pp collisions. The pythia -based estimate of the nuclear modification factor is found to be 1.22±0.15(stat+syst pPb)±0.27(syst pythia) averaged over all jets with pT between 55 and 400 GeV/c and with |ηlab|<2 . We also compare this result to predictions from models using perturbative calculations in quantum chromodynamics.
dc.description.versionPeer Reviewed
dc.identifierPhys.Lett. B754 (2016) 59 Phys. Lett. B 754 (2016) 59; DOI 10.1016/j.physletb.2016.01.010
dc.identifier.urihttp://dx.doi.org/10.1016/j.physletb.2016.01.010
dc.identifier.urihttp://hdl.handle.net/10400.26/26951
dc.language.isoeng
dc.titleTransverse momentum spectra of inclusive b jets in pPb collisions at $\sqrt{s_{NN}} = $ 5.02 TeV
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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