Studies of Charm Quark Diffusion inside Jets Using Pb-Pb and pp Collisions at root s(NN)=5.02 TeV

CMS Collaboration; Freya Blekman; Shimaa Abu Zeid; Jorgen D'Hondt; Isabelle Helena De Bruyn; Jarne De Clercq; Kevin Deroover; Giannis Flouris; Denys Lontkovskyi; Steven Lowette; Ivan Marchesini; Seth Moortgat; Lieselotte Moreels; Quentin Python; Kirill Skovpen; Stefaan Tavernier; Walter Van Doninck; Petra Van Mulders; Isis Marina Van Parijs; Douglas Burns

doi:10.1103/PhysRevLett.125.102001

Studies of Charm Quark Diffusion inside Jets Using Pb-Pb and pp Collisions at root s(NN)=5.02 TeV

CMS Collaboration, Freya Blekman, Shimaa Abu Zeid, Jorgen D'Hondt, Isabelle Helena De Bruyn, Jarne De Clercq, Kevin Deroover, Giannis Flouris, Denys Lontkovskyi, Steven Lowette, Ivan Marchesini, Seth Moortgat, Lieselotte Moreels, Quentin Python, Kirill Skovpen, Stefaan Tavernier, Walter Van Doninck, Petra Van Mulders, Isis Marina Van Parijs, Douglas Burns

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Abstract

The first study of charm quark diffusion with respect to the jet axis in heavy ion collisions is presented. The measurement is performed using jets with pTjet>60 GeV/c and D0 mesons with pTD>4 GeV/c in lead-lead (Pb-Pb) and proton-proton (pp) collisions at a nucleon-nucleon center-of-mass energy of sNN=5.02 TeV, recorded by the CMS detector at the LHC. The radial distribution of D0 mesons with respect to the jet axis is sensitive to the production mechanisms of the meson, as well as to the energy loss and diffusion processes undergone by its parent parton inside the strongly interacting medium produced in Pb-Pb collisions. When compared to Monte Carlo event generators, the radial distribution in pp collisions is found to be well described by pythia, while the slope of the distribution predicted by sherpa is steeper than that of the data. In Pb-Pb collisions, compared to the pp results, the D0 meson distribution for 4<pTD<20 GeV/c hints at a larger distance on average with respect to the jet axis, reflecting a diffusion of charm quarks in the medium created in heavy ion collisions. At higher pTD, the Pb-Pb and pp radial distributions are found to be similar.

Original language	English
Article number	102001
Number of pages <span style="color:red"p> <font size="1.5"> ✽ </span> </font>	18
Journal	Phys. Rev. Lett.
Volume	125
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.125.102001
Publication status	Published - 3 Sep 2020

Bibliographical note

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIN-18-007 (CMS Public Pages)

Keywords

hep-ex
nucl-ex

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10.1103/PhysRevLett.125.102001Licence: CC BY

1911.01461v2Submitted manuscript, 640 KBLicence: CC BY
PhysRevLett.125.102001Final published version, 528 KBLicence: CC BY

Cite this

Collaboration, CMS., Blekman, F., Abu Zeid, S., D'Hondt, J., De Bruyn, I. H., De Clercq, J., Deroover, K., Flouris, G., Lontkovskyi, D., Lowette, S., Marchesini, I., Moortgat, S., Moreels, L., Python, Q., Skovpen, K., Tavernier, S., Van Doninck, W., Van Mulders, P., Van Parijs, I. M., & Burns, D. (2020). Studies of Charm Quark Diffusion inside Jets Using Pb-Pb and pp Collisions at root s(NN)=5.02 TeV. Phys. Rev. Lett., 125(10), [102001]. https://doi.org/10.1103/PhysRevLett.125.102001

Collaboration, CMS ; Blekman, Freya ; Abu Zeid, Shimaa ; D'Hondt, Jorgen ; De Bruyn, Isabelle Helena ; De Clercq, Jarne ; Deroover, Kevin ; Flouris, Giannis ; Lontkovskyi, Denys ; Lowette, Steven ; Marchesini, Ivan ; Moortgat, Seth ; Moreels, Lieselotte ; Python, Quentin ; Skovpen, Kirill ; Tavernier, Stefaan ; Van Doninck, Walter ; Van Mulders, Petra ; Van Parijs, Isis Marina ; Burns, Douglas. / Studies of Charm Quark Diffusion inside Jets Using Pb-Pb and pp Collisions at root s(NN)=5.02 TeV. In: Phys. Rev. Lett. 2020 ; Vol. 125, No. 10.

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title = "Studies of Charm Quark Diffusion inside Jets Using Pb-Pb and pp Collisions at root s(NN)=5.02 TeV",

abstract = "The first study of charm quark diffusion with respect to the jet axis in heavy ion collisions is presented. The measurement is performed using jets with pTjet>60 GeV/c and D0 mesons with pTD>4 GeV/c in lead-lead (Pb-Pb) and proton-proton (pp) collisions at a nucleon-nucleon center-of-mass energy of sNN=5.02 TeV, recorded by the CMS detector at the LHC. The radial distribution of D0 mesons with respect to the jet axis is sensitive to the production mechanisms of the meson, as well as to the energy loss and diffusion processes undergone by its parent parton inside the strongly interacting medium produced in Pb-Pb collisions. When compared to Monte Carlo event generators, the radial distribution in pp collisions is found to be well described by pythia, while the slope of the distribution predicted by sherpa is steeper than that of the data. In Pb-Pb collisions, compared to the pp results, the D0 meson distribution for 4",

keywords = "hep-ex, nucl-ex",

author = "CMS Collaboration and Freya Blekman and {Abu Zeid}, Shimaa and Jorgen D'Hondt and {De Bruyn}, {Isabelle Helena} and {De Clercq}, Jarne and Kevin Deroover and Giannis Flouris and Denys Lontkovskyi and Steven Lowette and Ivan Marchesini and Seth Moortgat and Lieselotte Moreels and Quentin Python and Kirill Skovpen and Stefaan Tavernier and {Van Doninck}, Walter and {Van Mulders}, Petra and {Van Parijs}, {Isis Marina} and Douglas Burns",

note = "Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIN-18-007 (CMS Public Pages)",

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language = "English",

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Collaboration, CMS, Blekman, F, Abu Zeid, S, D'Hondt, J, De Bruyn, IH, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, IM & Burns, D 2020, 'Studies of Charm Quark Diffusion inside Jets Using Pb-Pb and pp Collisions at root s(NN)=5.02 TeV', Phys. Rev. Lett., vol. 125, no. 10, 102001. https://doi.org/10.1103/PhysRevLett.125.102001

Studies of Charm Quark Diffusion inside Jets Using Pb-Pb and pp Collisions at root s(NN)=5.02 TeV. / Collaboration, CMS; Blekman, Freya; Abu Zeid, Shimaa; D'Hondt, Jorgen; De Bruyn, Isabelle Helena; De Clercq, Jarne; Deroover, Kevin; Flouris, Giannis; Lontkovskyi, Denys; Lowette, Steven; Marchesini, Ivan; Moortgat, Seth; Moreels, Lieselotte; Python, Quentin; Skovpen, Kirill; Tavernier, Stefaan; Van Doninck, Walter; Van Mulders, Petra; Van Parijs, Isis Marina; Burns, Douglas.

In: Phys. Rev. Lett., Vol. 125, No. 10, 102001, 03.09.2020.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Studies of Charm Quark Diffusion inside Jets Using Pb-Pb and pp Collisions at root s(NN)=5.02 TeV

AU - Collaboration, CMS

AU - Blekman, Freya

AU - Abu Zeid, Shimaa

AU - D'Hondt, Jorgen

AU - De Bruyn, Isabelle Helena

AU - De Clercq, Jarne

AU - Deroover, Kevin

AU - Flouris, Giannis

AU - Lontkovskyi, Denys

AU - Lowette, Steven

AU - Marchesini, Ivan

AU - Moortgat, Seth

AU - Moreels, Lieselotte

AU - Python, Quentin

AU - Skovpen, Kirill

AU - Tavernier, Stefaan

AU - Van Doninck, Walter

AU - Van Mulders, Petra

AU - Van Parijs, Isis Marina

AU - Burns, Douglas

N1 - Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIN-18-007 (CMS Public Pages)

PY - 2020/9/3

Y1 - 2020/9/3

N2 - The first study of charm quark diffusion with respect to the jet axis in heavy ion collisions is presented. The measurement is performed using jets with pTjet>60 GeV/c and D0 mesons with pTD>4 GeV/c in lead-lead (Pb-Pb) and proton-proton (pp) collisions at a nucleon-nucleon center-of-mass energy of sNN=5.02 TeV, recorded by the CMS detector at the LHC. The radial distribution of D0 mesons with respect to the jet axis is sensitive to the production mechanisms of the meson, as well as to the energy loss and diffusion processes undergone by its parent parton inside the strongly interacting medium produced in Pb-Pb collisions. When compared to Monte Carlo event generators, the radial distribution in pp collisions is found to be well described by pythia, while the slope of the distribution predicted by sherpa is steeper than that of the data. In Pb-Pb collisions, compared to the pp results, the D0 meson distribution for 4

AB - The first study of charm quark diffusion with respect to the jet axis in heavy ion collisions is presented. The measurement is performed using jets with pTjet>60 GeV/c and D0 mesons with pTD>4 GeV/c in lead-lead (Pb-Pb) and proton-proton (pp) collisions at a nucleon-nucleon center-of-mass energy of sNN=5.02 TeV, recorded by the CMS detector at the LHC. The radial distribution of D0 mesons with respect to the jet axis is sensitive to the production mechanisms of the meson, as well as to the energy loss and diffusion processes undergone by its parent parton inside the strongly interacting medium produced in Pb-Pb collisions. When compared to Monte Carlo event generators, the radial distribution in pp collisions is found to be well described by pythia, while the slope of the distribution predicted by sherpa is steeper than that of the data. In Pb-Pb collisions, compared to the pp results, the D0 meson distribution for 4

KW - hep-ex

KW - nucl-ex

UR - http://www.scopus.com/inward/record.url?scp=85091470163&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.125.102001

DO - 10.1103/PhysRevLett.125.102001

M3 - Article

VL - 125

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 10

M1 - 102001

ER -

Studies of Charm Quark Diffusion inside Jets Using Pb-Pb and pp Collisions at root s(NN)=5.02 TeV

Abstract

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SRP8: Strategic Research Programme: High-Energy Physics at the VUB

Studies of charm quark diffusion inside jets using Pb-Pb and pp collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV

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Studies of Charm Quark Diffusion inside Jets Using Pb-Pb and pp Collisions at root s(NN)=5.02 TeV

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

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SRP8: Strategic Research Programme: High-Energy Physics at the VUB

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Studies of charm quark diffusion inside jets using Pb-Pb and pp collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV

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