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Abelev, B. I.; Adam, J.; Adamová, D.; Aggarwal, M. M.; Agnello, M.; Agostinelli, A.; Agrawal, N.; Ahammed, Z.; Ahmad, N.; Ahmed, I.; Ahn, S. U.; Aimo, I.; Aiola, S.; Ajaz, M.; Akindinov, A.; Alam, Sk Noor; Aleksandrov, D.; Alessandro, B.; Alexandre, D.; Alici, A.; Alkin, A.; Alme, J.; Alt, T.; Altinpinar, S.; Altsybeev, I.; Prado, C. Alves Garcia; Andrei, C.; Andronic, A.; Anguelov, V.; Anielski, J.; Antičić, T.; Antinori, F.; Antonioli, P.; Aphecetche, L.; Appelshäuser, H.; Arbor, N.; Arcelli, S.; Armesto, N.; Arnaldi, R.; Aronsson, T.; Arsene, I. C.; Arslandok, M.; Augustinus, A.; Averbeck, R.; Awes, T. C.; Azmi, M. D.; Bach, M.; Badalà, A.; Baek, Y. W.; Bagnasco, S.; Bailhache, R.; Bala, R.; Baldisseri, A.; Pedrosa, F. Baltasar Dos Santos; Baral, R. C.; Barbera, R.; Barile, F.; Barnaföldi, G. G.; Barnby, L. S.; Barret, V.; Bartke, J.; Basile, M.; Bastid, N.; Basu, S.; Bathen, B.; Batigne, G.; Batyunya, B.; Batzing, P. C.; Baumann, C.; Bearden, I. G.; Beck, H.; Bedda, C.; Behera, N. 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doi:10.1103/physrevd.91.012001

Cited by 35 publications

(24 citation statements)

References 70 publications

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“…The charge averaged p T -differential yields, cross sections and the resulting nuclear modification factors are presented. Applying a data-driven background subtraction technique [45] allowed for a reduction of the systematic uncertainties of the pp reference cross section by a factor of about 3 compared to the previously published reference [47], which is consistent within uncertainties with the current measurement. The results presented in this paper extend the previous measurements [42] of electrons from semileptonic heavy-flavour hadron decays in Pb-Pb collisions from 3 GeV/c down to 0.5 GeV/c in p T .…”

Section: Jhep10(2018)061supporting

confidence: 82%

Measurements of low-pT electrons from semileptonic heavy-flavour hadron decays at mid-rapidity in pp and Pb-Pb collisions at $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ TeV

Acharya¹,

Acosta²,

Adamová³

et al. 2018

J. High Energ. Phys.

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Transverse-momentum (p T) differential yields of electrons from semileptonic heavy-flavour hadron decays have been measured in the most central (0-10%) and in semicentral (20-40%) Pb-Pb collisions at √ s NN = 2.76 TeV. The corresponding production cross section in pp collisions has been measured at the same energy with substantially reduced systematic uncertainties with respect to previously published results. The modification of the yield in Pb-Pb collisions with respect to the expectation from an incoherent superposition of nucleon-nucleon collisions is quantified at mid-rapidity (|y| < 0.8) in the p T interval 0.5-3 GeV/c via the nuclear modification factor, R AA. This paper extends the p T reach of the R AA measurement towards significantly lower values with respect to a previous publication. In Pb-Pb collisions the p T-differential measurements of yields at low p T are essential to investigate the scaling of heavy-flavour production with the number of binary nucleon-nucleon collisions. Heavy-quark hadronization, a collective expansion and even initial-state effects, such as the nuclear modification of the Parton Distribution Function, are also expected to have a significant effect on the measured distribution.

show abstract

Section: Jhep10(2018)061supporting

confidence: 82%

Measurements of low-pT electrons from semileptonic heavy-flavour hadron decays at mid-rapidity in pp and Pb-Pb collisions at $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ TeV

Acharya¹,

Acosta²,

Adamová³

et al. 2018

J. High Energ. Phys.

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“…pQCD-based calculations [12,13] are compatible with data within uncertainties, in the measured p T range (p T < 12 GeV/c) for D mesons [14], HF decay electrons [15] and HF decay muons [16]. The same conclusion holds for √ s = 7 TeV [17 -19], indicating a good understanding of HF production in pp collisions at LHC energies with pQCD.…”

Section: 76 Tev and 7 Tevmentioning

confidence: 61%

Recent results from the ALICE experiment on open heavy flavours

Porteboeuf-Houssais¹

2014

Proceedings of 52 International Winter Meeting on Nuclear Physics — PoS(Bormio2014)

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for the ALICE collaboration ALICE is the LHC experiment devoted to the study of the Quark-Gluon Plasma (QGP). To probe this high energy density state of strongly interacting matter expected to be produced in heavy-ion collisions at high energies, measurements performed in various systems (pp, p-Pb and Pb-Pb) are compared to each other. Heavy quarks are produced in initial hard partonic scatterings on a short time scale and participate in the subsequent evolution of the medium. This makes them sensitive probes of the QGP. With ALICE, open heavy flavours are studied using D mesons (D 0 , D + , D * + ) reconstructed via their hadronic decay channels in the mid-rapidity region (|y| < 0.5) and with heavy-flavour decay leptons reconstructed in the electronic (muonic) channel in the central rapidity region |y| < 0.9 (forward rapidity region 2.5 < y < 4). We present ALICE measurements of the nuclear modification factor R AA and the elliptic flow v 2 for D mesons and heavy-flavour decay leptons in Pb-Pb collisions at √ s NN = 2.76 TeV. The corresponding measurements in pPb collisions at √ s NN = 5.02 TeV are also discussed. First results on the azimuthal correlations between heavy-flavour particles and hadrons are presented as well as the charged-particle multiplicity dependence of heavy-flavour production in pp collisions at √ s = 7 TeV.

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“…The p T -differential cross section of D 0 , D + , D * + and D + s mesons [3], muons from heavyflavour decays [4,5], electrons from heavy-flavour decays [6,7] and beauty-decay electrons [8,9] have been measured in pp collisions at √ s = 2.76 TeV and √ s = 7 TeV and are found to be compatible with pQCD predictions including calculations from FONLL [2], GM-VFNS [10,11] and the k T -factorisation scheme [12]. The D 0 production cross section has also been measured down to p T = 0 at √ s = 7 TeV [3].…”

Section: Resultsmentioning

confidence: 99%