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Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV

Journal articles  - Journal Article
Sirunyan, AM; Tumasyan, A; Adam, W; Asilar, E; Bergauer, T; Brandstetter, J; Brondolin, E; Dragicevic, M; Erö, J; Flechl, M; Friedl, M; Rad, N ...
Published in: Physics Letters Section B Nuclear Elementary Particle and High Energy Physics
September 10, 2017

The CMS Collaboration presents the first measurement of the differential cross section of jets from charm quarks produced in proton–lead (pPb) collisions at a nucleon–nucleon center-of-mass energy of sNN=5.02TeV, as well as results from charm quark jets in proton–proton (pp) collisions at s=2.76 and 5.02TeV. By comparing the yields of the pPb and pp collision systems at the same energy, a nuclear modification factor for charm jets from 55 to 400 GeV/c in pPb collisions at sNN=5.02TeV of RpA=0.92±0.07(stat)±0.11(syst) is obtained. This is consistent with an absence of final-state energy loss for charm quarks in pPb collisions. In addition, the fraction of jets coming from charm quarks is found to be consistent with that predicted by PYTHIA 6 for pp collisions at s=2.76 and 5.02TeV, and is independent of the jet transverse momentum from 55 to 400 GeV/c.

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Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

ISSN

0370-2693

Publication Date

September 10, 2017

Volume

772

Start / End Page

306 / 329

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
 

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Sirunyan, A. M., Tumasyan, A., Adam, W., Asilar, E., Bergauer, T., Brandstetter, J., … Brochet, S. (2017). Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, 772, 306–329. https://doi.org/10.1016/j.physletb.2017.06.053
Sirunyan, A. M., A. Tumasyan, W. Adam, E. Asilar, T. Bergauer, J. Brandstetter, E. Brondolin, et al. “Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics 772 (September 10, 2017): 306–29. https://doi.org/10.1016/j.physletb.2017.06.053.
Sirunyan AM, Tumasyan A, Adam W, Asilar E, Bergauer T, Brandstetter J, et al. Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2017 Sep 10;772:306–29.
Sirunyan, A. M., et al. “Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, vol. 772, Sept. 2017, pp. 306–29. Scopus, doi:10.1016/j.physletb.2017.06.053.
Sirunyan AM, Tumasyan A, Adam W, Asilar E, Bergauer T, Brandstetter J, Brondolin E, Dragicevic M, Erö J, Flechl M, Friedl M, Frühwirth R, Ghete VM, Hartl C, Hörmann N, Hrubec J, Jeitler M, König A, Krätschmer I, Liko D, Matsushita T, Mikulec I, Rabady D, Rad N, Rahbaran B, Rohringer H, Schieck J, Strauss J, Waltenberger W, Wulz CE, Dvornikov O, Makarenko V, Zykunov V, Mossolov V, Shumeiko N, Suarez Gonzalez J, Alderweireldt S, De Wolf EA, Janssen X, Lauwers J, Van De Klundert M, Van Haevermaet H, Van Mechelen P, Van Remortel N, Van Spilbeeck A, Abu Zeid S, Blekman F, D’Hondt J, Daci N, De Bruyn I, Deroover K, Lowette S, Moortgat S, Moreels L, Olbrechts A, Python Q, Tavernier S, Van Doninck W, Van Mulders P, Van Parijs I, Brun H, Clerbaux B, De Lentdecker G, Delannoy H, Fasanella G, Favart L, Goldouzian R, Grebenyuk A, Karapostoli G, Lenzi T, Léonard A, Luetic J, Maerschalk T, Marinov A, Randle-conde A, Seva T, Vander Velde C, Vanlaer P, Vannerom D, Yonamine R, Zenoni F, Zhang F, Cimmino A, Cornelis T, Dobur D, Fagot A, Garcia G, Gul M, Khvastunov I, Poyraz D, Salva S, Schöfbeck R, Tytgat M, Van Driessche W, Yazgan E, Zaganidis N, Bakhshiansohi H, Beluffi C, Bondu O, Brochet S. Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2017 Sep 10;772:306–329.
Journal cover image

Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

ISSN

0370-2693

Publication Date

September 10, 2017

Volume

772

Start / End Page

306 / 329

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences