Predictions for cold nuclear matter effects in p+Pb collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msqrt><mml:mrow><mml:msub><mml:mrow><mml:mi>s</mml:mi></mml:mrow><mml:mrow><mml:mi>N</mml:mi><mml:mi>N</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>8.16</mml:mn></mml:math> TeV

Albacete, Javier L.; Arleo, François; Barnaföldi, G. G.; Bíró, G.; d’Enterria, D.; Ducloué, B.; Eskola, Kari J.; Ferreiro, E. G.; Gyulassy, Miklós; Harangozó, Szilvester Miklós; Helenius, Ilkka; Kang, Zhong‐Bo; Kotko, Piotr; Kulagin, S. A.; Kutak, Krzysztof; Lansberg, J. P.; Lappi, T.; Lévai, P.; Lin, Zi-Wei; Ma, Guoyang; Ma, Y.; Mäntysaari, Heikki; Paukkunen, Hannu; Papp, Gábor; Petti, R.; Rezaeian, Amir H.; Ru, Peng; Sapeta, Sebastian; Schenke, Björn; Schlichting, Sören; Shao, Hua-Sheng; Tribedy, P.; Venugopalan, Raju; Vitev, Ivan; Vogt, R.; Wang, Enke; Wang, Xin‐Nian; Xing, Hongxi; Xu, Rong; Zhang, Ben-Wei; Zhang, Hongfei; Zhang, Weining

doi:10.1016/j.nuclphysa.2017.11.015

Cited by 55 publications

(47 citation statements)

References 199 publications

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“…Before we proceed to investigate the influence of the hot fireball in asymmetric systems at LHC energies on the Υ suppression, we mention that our calculations for the CNM effects due to both, modifications of the PDFs and coherent energy loss in the nuclear medium (see Sec. V), are in line with standard results of the CNM-community [14], which were originally presented as predictions before the 8.16 TeV pPb run.…”

Section: B Effective Path Lengthsupporting

confidence: 87%

“…Regarding the CNM-effects, we consider the modification of the parton distribution functions (PDFs) in a nucleus compared to free nucleons, and the coherent energy loss of the bottomonia on their paths through the medium [14]. These cold-matter effects are not expected to be much different for ground and excited bottomonia states; indeed, the ALICE measurement of the cross section ratio Υ(2S)/Υ(1S) in 5.02 TeV pPb shows no evidence for different CNM effects on the two states at forward and backward rapidities, albeit within large uncertainties [15].…”

Section: Introductionmentioning

confidence: 99%

“…These had extensively been considered by a large group of authors in Ref. [14]. For the initial-state modification of the parton distribution functions in the nuclear medium, we use the most recent global analysis of nuclear shadowing that provides a new set of PDFs, Ref.…”

Section: Introductionmentioning

confidence: 99%

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Hot-medium effects on Υ yields in pPb collisions at sNN=8.16
Dinh
¹
,
Hoelck
²
,
Wolschin
³

2019
Phys. Rev. C
7
1
28
0
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The respective contributions of cold-matter and hot-medium effects to the suppression of Υ(1S) and Υ(2S) mesons in pPb collisions at energies reached at the Large Hadron Collider (LHC) are investigated. Whereas known alterations of the parton density functions in the lead nucleus and coherent parton energy loss account for the leading fraction of the modifications in cold nuclear matter (CNM), the hot-medium (quark-gluon plasma, QGP) effects turn out to be relevant in spite of the small initial spatial extent of the fireball. We compare our transverse-momentum-, rapidity-, and centrality-dependent theoretical results for the Υ suppression in pPb collisions at a center-ofmass energy of √ sNN = 8.16 TeV with recent LHCb and preliminary ALICE data from the Large Hadron Collider (LHC). Both cold-matter and hot-medium effects are needed to account for the data. The initial central temperature of the fireball is found to be T0 ≃ 460 MeV.PACS numbers: 25.75.Dw,25.75.C

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Section: B Effective Path Lengthsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

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Hot-medium effects on Υ yields in pPb collisions at sNN=8.16
Dinh
¹
,
Hoelck
²
,
Wolschin
³

2019
Phys. Rev. C
7
1
28
0
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“…This work is the first study to include this effect in the SiJF formalism. Last but not least, we also consider the cold nuclear matter (CNM) and isospin effects [38][39][40].…”

Section: Introductionmentioning

confidence: 99%

Inclusive heavy flavor jet production with semi-inclusive jet functions: from proton to heavy-ion collisions

Vitev

2019

J. High Energ. Phys.

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The past several years have witnessed important developments in the QCD theory of jet production and jet substructure in hadronic collisions. In the framework of soft-collinear effective theory, semi-inclusive jet functions and semi-inclusive fragmenting jet functions have allowed us to combine higher order calculations with resummation of potentially large logarithms of the jet radius, ln R. Very recently, the semi-inclusive jet functions for partons fragmenting into heavy flavor jets were computed by Dai, Kim and Leibovich. In this paper we show how the formalism can be extended to c-jet and b-jet production in heavy ion collisions. The semi-inclusive jet functions for heavy flavor jets in a QCD medium are evaluated up to the next-to-leading order in α s and first order in opacity. For phenomenological applications, we also consider the inclusion of the cold nuclear matter effects and the jet energy dissipation due to collisional interactions in matter. We present the numerical predictions for the cross sections and the corresponding nuclear modification factors in proton-nucleus and nucleus-nucleus collisions and compare our results to data from the Large Hadron Collider.where f a,b denotes the usual PDF for parton a or b, dσ ab→c (ŝ, p T ,η, µ)/dvdz represents the hard function for the sub-process ab → c, and J J/c is the jet function describing the probability of a parton c with transverse momentum p T /z c to fragment into a jet J with p T . The variablesŝ andη are the partonic center-of-mass energy and parton rapidity. The SiJFs depend on the momentum fraction z c taken by the jet, the jet energy w J , R = R/ cosh(η) from the jet reconstruction algorithm, and the quark mass m Q . The ln R resummation for jet production can be achieved by evolving the SiJFs from the jet scale µ J to the

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“…The central gluon modification of the latest nPDF set, EPPS16 [36], is not significantly different from EPS09. However, EPPS16 has five additional parameters relative to EPS09, resulting in larger uncertainty bands with an uncertainty of 25-30% due to shadowing [37]. Although the uncertainty due to shadowing is significant, it is smaller than the uncertainties due to the heavy quark mass and scale variations, particularly for charm quarks [38].…”

Section: Cold Nuclear Matter Effectsmentioning

confidence: 99%

bb¯ kinematic correlations in cold nuclear matter

Vogt

2020

Phys. Rev. C

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Background: The LHCb Collaboration has studied a number of kinematic correlations between B-hadron pairs through their subsequent decays to J/ψ pairs at 7 and 8 TeV for four minimum values of the J/ψ pT . Purpose: In this work, these measurements are compared to calculations of bb pairs and their hadronization and inclusive decays to J/ψJ/ψ are compared to the same observables. Potential cold matter effects on the bb pair observables are discussed to determine which are most likely to provide insights about the system and why. Methods: The calculations, employing the exclusive HVQMNR code, assume the same intrinsic kT -broadening and fragmentation as in Ref. [1]. The pair distributions presented by LHCb are calculated in this approach, both for the parent bb and the J/ψJ/ψ pairs produced in their decay. The sensitivity of the results to the intrinsic kT broadening is shown. The theoretical uncertainties due to the b quark mass and scale variations on both the initial bb pairs and the resulting J/ψ pairs are also shown. Possible effects due to the presence of the nucleus are studied by increasing the size of the kT broadening and modification of the fragmentation parameter. Results: Good agreement with the LHCb data is found for all observables. The parent bb distributions are more sensitive to the kT broadening than are the final-state J/ψ pairs. Conclusions: Next-to-leading order calculations with kT broadening, as in Ref.[1], can describe all correlated observables. Multiple measurements of correlated observables are sensitive to different nuclear effects which can help distinguish between them.

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Predictions for cold nuclear matter effects in p+Pb collisions at sNN=8.16 TeV

Cited by 55 publications

References 199 publications

Hot-medium effects on Υ yields in pPb collisions at sNN=8.16
Dinh
¹
,
Hoelck
²
,
Wolschin
³

2019
Phys. Rev. C
7
1
28
0
View full text Add to dashboard Cite

Hot-medium effects on Υ yields in pPb collisions at sNN=8.16
Dinh
¹
,
Hoelck
²
,
Wolschin
³

2019
Phys. Rev. C
7
1
28
0
View full text Add to dashboard Cite

Inclusive heavy flavor jet production with semi-inclusive jet functions: from proton to heavy-ion collisions

bb¯ kinematic correlations in cold nuclear matter

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Predictions for cold nuclear matter effects in p+Pb collisions at sNN=8.16 TeV

Cited by 55 publications

References 199 publications

Hot-medium effects on Υ yields in pPb collisions at sNN=8.16Dinh1, Hoelck2, Wolschin3 2019Phys. Rev. C71280View full textAdd to dashboardCite

Hot-medium effects on Υ yields in pPb collisions at sNN=8.16Dinh1, Hoelck2, Wolschin3 2019Phys. Rev. C71280View full textAdd to dashboardCite

Inclusive heavy flavor jet production with semi-inclusive jet functions: from proton to heavy-ion collisions

bb¯ kinematic correlations in cold nuclear matter

Contact Info

Product

Resources

About

Hot-medium effects on Υ yields in pPb collisions at sNN=8.16
Dinh
¹
,
Hoelck
²
,
Wolschin
³

2019
Phys. Rev. C
7
1
28
0
View full text Add to dashboard Cite

Hot-medium effects on Υ yields in pPb collisions at sNN=8.16
Dinh
¹
,
Hoelck
²
,
Wolschin
³

2019
Phys. Rev. C
7
1
28
0
View full text Add to dashboard Cite