Abstract
The momentum-weighted sum of the electric charges of particles inside a jet, known as jet charge, is sensitive to the electric charge of the particle initiating the parton shower. This paper presents jet charge distributions in sNN = 5.02 TeV lead-lead (PbPb) and proton-proton (pp) collisions recorded with the CMS detector at the LHC. These data correspond to integrated luminosities of 404 μb−1 and 27.4 pb−1 for PbPb and pp collisions, respectively. Leveraging the sensitivity of the jet charge to fundamental differences in the electric charges of quarks and gluons, the jet charge distributions from simulated events are used as templates to extract the quark- and gluon-like jet fractions from data. The modification of these jet fractions is examined by comparing pp and PbPb data as a function of the overlap of the colliding Pb nuclei (centrality). This measurement tests the color charge dependence of jet energy loss due to interactions with the quark-gluon plasma. No significant modification between different centrality classes and with respect to pp results is observed in the extracted quark- and gluon-like jet fractions. [Figure not available: see fulltext.]
| Original language | English |
|---|---|
| Article number | 115 |
| Number of pages | 42 |
| Journal | Journal of High Energy Physics |
| Volume | 2020 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 17 Jul 2020 |
Keywords
- Hadron-Hadron scattering (experiments)
- Heavy-ion collision
- Jets
Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver
}
In: Journal of High Energy Physics, Vol. 2020, No. 7, 115, 17.07.2020.
Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Measurement of quark- and gluon-like jet fractions using jet charge in PbPb and pp collisions at 5.02 TeV
AU - Sirunyan, A. M.
AU - Tumasyan, A.
AU - Adam, W.
AU - Ambrogi, F.
AU - Bergauer, T.
AU - Dragicevic, M.
AU - Erö, J.
AU - Escalante Del Valle, A.
AU - Flechl, M.
AU - Frühwirth, R.
AU - Jeitler, M.
AU - Krammer, N.
AU - Krätschmer, I.
AU - Liko, D.
AU - Madlener, T.
AU - Mikulec, I.
AU - Rad, N.
AU - Schieck, J.
AU - Schöfbeck, R.
AU - Spanring, M.
AU - Waltenberger, W.
AU - Wulz, C. E.
AU - Zarucki, M.
AU - Drugakov, V.
AU - Mossolov, V.
AU - Suarez Gonzalez, J.
AU - Darwish, M. R.
AU - De Wolf, E. A.
AU - Di Croce, D.
AU - Janssen, X.
AU - Lelek, A.
AU - Pieters, M.
AU - Rejeb Sfar, H.
AU - Van Haevermaet, H.
AU - Van Mechelen, P.
AU - Van Putte, S.
AU - Van Remortel, N.
AU - Blekman, F.
AU - Bols, E. S.
AU - Chhibra, S. S.
AU - D’Hondt, J.
AU - De Clercq, J.
AU - Lontkovskyi, D.
AU - Lowette, S.
AU - Marchesini, I.
AU - Moortgat, S.
AU - Python, Q.
AU - Tavernier, S.
AU - Van Doninck, W.
AU - Van Mulders, P.
AU - Beghin, D.
AU - Bilin, B.
AU - Clerbaux, B.
AU - De Lentdecker, G.
AU - Delannoy, H.
AU - Dorney, B.
AU - Favart, L.
AU - Grebenyuk, A.
AU - Kalsi, A. K.
AU - Moureaux, L.
AU - Popov, A.
AU - Postiau, N.
AU - Starling, E.
AU - Thomas, L.
AU - Vander Velde, C.
AU - Vanlaer, P.
AU - Vannerom, D.
AU - Cornelis, T.
AU - Dobur, D.
AU - Khvastunov, I.
AU - Niedziela, M.
AU - Roskas, C.
AU - Skovpen, K.
AU - Tytgat, M.
AU - Verbeke, W.
AU - Vermassen, B.
AU - Vit, M.
AU - Bondu, O.
AU - Bruno, G.
AU - Caputo, C.
AU - David, P.
AU - Delaere, C.
AU - Delcourt, M.
AU - Giammanco, A.
AU - Lemaitre, V.
AU - Prisciandaro, J.
AU - Saggio, A.
AU - Vidal Marono, M.
AU - Vischia, P.
AU - Zobec, J.
AU - Alves, G. A.
AU - Correia Silva, G.
AU - Hensel, C.
AU - Moraes, A.
AU - Belchior Batista Das Chagas, E.
AU - Carvalho, W.
AU - Chinellato, J.
AU - Coelho, E.
AU - Da Costa, E. M.
AU - Da Silveira, G. G.
AU - De Jesus Damiao, D.
AU - De Oliveira Martins, C.
AU - Fonseca De Souza, S.
AU - Malbouisson, H.
AU - Martins, J.
AU - Matos Figueiredo, D.
AU - Medina Jaime, M.
AU - Melo De Almeida, M.
AU - Mora Herrera, C.
AU - Mundim, L.
AU - Nogima, H.
AU - Prado Da Silva, W. L.
AU - Rebello Teles, P.
AU - Sanchez Rosas, L. J.
AU - Santoro, A.
AU - Sznajder, A.
AU - Thiel, M.
AU - Tonelli Manganote, E. J.
AU - Torres Da Silva De Araujo, F.
AU - Vilela Pereira, A.
AU - Bernardes, C. A.
AU - Calligaris, L.
AU - Fernandez Perez Tomei, T. R.
AU - Gregores, E. M.
AU - Lemos, D. S.
AU - Mercadante, P. G.
AU - Novaes, S. F.
AU - Padula, Sandra S.
AU - Aleksandrov, A.
AU - Antchev, G.
AU - Hadjiiska, R.
AU - Iaydjiev, P.
AU - Misheva, M.
AU - Rodozov, M.
AU - Shopova, M.
AU - Sultanov, G.
AU - Bonchev, M.
AU - Dimitrov, A.
AU - Ivanov, T.
AU - Litov, L.
AU - Pavlov, B.
AU - Petkov, P.
AU - Petrov, A.
AU - Fang, W.
AU - Gao, X.
AU - Yuan, L.
AU - Ahmad, M.
AU - Hu, Z.
AU - Wang, Y.
AU - Chen, G. M.
AU - Chen, H. S.
AU - Chen, M.
AU - Jiang, C. H.
AU - Leggat, D.
AU - Liao, H.
AU - Liu, Z.
AU - Spiezia, A.
AU - Tao, J.
AU - Yazgan, E.
AU - Zhang, H.
AU - Zhang, S.
AU - Zhao, J.
AU - Agapitos, A.
AU - Ban, Y.
AU - Chen, G.
AU - Levin, A.
AU - Li, J.
AU - Li, L.
AU - Li, Q.
AU - Mao, Y.
AU - Qian, S. J.
AU - Wang, D.
AU - Wang, Q.
AU - Xiao, M.
AU - Avila, C.
AU - Cabrera, A.
AU - Florez, C.
AU - González Hernández, C. F.
AU - Segura Delgado, M. A.
AU - Mejia Guisao, J.
AU - Ruiz Alvarez, J. D.
AU - Salazar González, C. A.
AU - Vanegas Arbelaez, N.
AU - Giljanović, D.
AU - Godinovic, N.
AU - Lelas, D.
AU - Puljak, I.
AU - Sculac, T.
AU - Antunovic, Z.
AU - Kovac, M.
AU - Brigljevic, V.
AU - Ferencek, D.
AU - Kadija, K.
AU - Mesic, B.
AU - Roguljic, M.
AU - Starodumov, A.
AU - Susa, T.
AU - Ather, M. W.
AU - Attikis, A.
AU - Erodotou, E.
AU - Ioannou, A.
AU - Kolosova, M.
AU - Konstantinou, S.
AU - Mavromanolakis, G.
AU - Mousa, J.
AU - Nicolaou, C.
AU - Ptochos, F.
AU - Razis, P. A.
AU - Rykaczewski, H.
AU - Saka, H.
AU - Tsiakkouri, D.
AU - Finger, M.
AU - Finger, M.
AU - Kveton, A.
AU - Tomsa, J.
AU - Ayala, E.
AU - Carrera Jarrin, E.
AU - Mahmoud, M. A.
AU - Mohammed, Y.
AU - Bhowmik, S.
AU - Carvalho Antunes De Oliveira, A.
AU - Dewanjee, R. K.
AU - Ehataht, K.
AU - Kadastik, M.
AU - Raidal, M.
AU - Veelken, C.
AU - Eerola, P.
AU - Forthomme, L.
AU - Kirschenmann, H.
AU - Osterberg, K.
AU - Voutilainen, M.
AU - Garcia, F.
AU - Havukainen, J.
AU - Heikkilä, J. K.
AU - Karimäki, V.
AU - Kim, M. S.
AU - Kinnunen, R.
AU - Lampén, T.
AU - Lassila-Perini, K.
AU - Laurila, S.
AU - Lehti, S.
AU - Lindén, T.
AU - Siikonen, H.
AU - Tuominen, E.
AU - Tuominiemi, J.
AU - Luukka, P.
AU - Tuuva, T.
AU - Besancon, M.
AU - Couderc, F.
AU - Laird, E.
AU - Nash, Jordan A.
AU - CMS Collaboration
PY - 2020/7/17
Y1 - 2020/7/17
N2 - The momentum-weighted sum of the electric charges of particles inside a jet, known as jet charge, is sensitive to the electric charge of the particle initiating the parton shower. This paper presents jet charge distributions in sNN = 5.02 TeV lead-lead (PbPb) and proton-proton (pp) collisions recorded with the CMS detector at the LHC. These data correspond to integrated luminosities of 404 μb−1 and 27.4 pb−1 for PbPb and pp collisions, respectively. Leveraging the sensitivity of the jet charge to fundamental differences in the electric charges of quarks and gluons, the jet charge distributions from simulated events are used as templates to extract the quark- and gluon-like jet fractions from data. The modification of these jet fractions is examined by comparing pp and PbPb data as a function of the overlap of the colliding Pb nuclei (centrality). This measurement tests the color charge dependence of jet energy loss due to interactions with the quark-gluon plasma. No significant modification between different centrality classes and with respect to pp results is observed in the extracted quark- and gluon-like jet fractions. [Figure not available: see fulltext.]
AB - The momentum-weighted sum of the electric charges of particles inside a jet, known as jet charge, is sensitive to the electric charge of the particle initiating the parton shower. This paper presents jet charge distributions in sNN = 5.02 TeV lead-lead (PbPb) and proton-proton (pp) collisions recorded with the CMS detector at the LHC. These data correspond to integrated luminosities of 404 μb−1 and 27.4 pb−1 for PbPb and pp collisions, respectively. Leveraging the sensitivity of the jet charge to fundamental differences in the electric charges of quarks and gluons, the jet charge distributions from simulated events are used as templates to extract the quark- and gluon-like jet fractions from data. The modification of these jet fractions is examined by comparing pp and PbPb data as a function of the overlap of the colliding Pb nuclei (centrality). This measurement tests the color charge dependence of jet energy loss due to interactions with the quark-gluon plasma. No significant modification between different centrality classes and with respect to pp results is observed in the extracted quark- and gluon-like jet fractions. [Figure not available: see fulltext.]
KW - Hadron-Hadron scattering (experiments)
KW - Heavy-ion collision
KW - Jets
UR - http://www.scopus.com/inward/record.url?scp=85088976873&partnerID=8YFLogxK
U2 - 10.1007/JHEP07(2020)115
DO - 10.1007/JHEP07(2020)115
M3 - Article
AN - SCOPUS:85088976873
SN - 1126-6708
VL - 2020
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 7
M1 - 115
ER -