標題: | Measurement of associated production of a W boson and a charm quark in proton–proton collisions at √s=13Te |
作者: | Sirunyan A.M. Favart, L. Dobur, D. Tytgat, M. Schieck, J. Verbeke, W. Moreels, L. Madlener, T. Khvastunov, I. Asilar, E. Wulz, C. E. Marchesini, I. Dragicevic, M. Krätschmer, I. Vit, M. Clerbaux, B. Delannoy, H. Kalsi, A. K. Schöfbeck, R. Janssen, X. De Bruyn, I. Thomas, L. Liko, D. Vanlaer, P. David, P. Tavernier, S. Goldouzian, R. Lowette, S. Spanring, M. Van Doninck, W. Frühwirth, R. Pieters, M. Bakhshiansohi, H. Ambrogi, F. Van Mechelen, P. Flechl, M. Bergauer, T. Jeitler, M. Vermassen, B. Chekhovsky, V. Vander Velde, C. Zaganidis, N. De Wolf, E. A. Lauwers, J. Brandstetter, J. Wittmann, J. Lenzi, T. Fasanella, G. Suarez Gonzalez, J. Erö, J. Escalante Del Valle, A. Caputo, C. Waltenberger, W. De Clercq, J. Postiau, N. De Lentdecker, G. Blekman, F. Beghin, D. Starling, E. Van Parijs, I. Bilin, B. Brun, H. Wang, Q. Deroover, K. Lontkovskyi, D. Flouris, G. Hrubec, J. Di Croce, D. Mossolov, V. Vannerom, D. Brochet, S. Adam, W. Skovpen, K. Taurok, A. Tumasyan, A. Van Haevermaet, H. Mikulec, I. Luetic, J. Sirunyan, A. M. Abu Zeid, S. Dorney, B. Gul, M. Ghete, V. M. Roskas, C. Cornelis, T. Trocino, D. Krammer, N. D’Hondt, J. Moortgat, S. Van Mulders, P. Zarucki, M. Grebenyuk, A. Rohringer, H. Fagot, A. Python, Q. Bondu, O. Spitzbart, D. Poyraz, D. Bruno, G. PAO-TI CHANG et al. Stathes Paganis PAO-TI CHANG et al. KAI-FENG CHEN et al. RONG-SHYANG LU et al. WEI-SHU HOU et al. |
公開日期: | 2019 |
卷: | 79 |
期: | 3 |
來源出版物: | European Physical Journal C |
摘要: | Measurements are presented of associated production of a W boson and a charm quark (W + c) in proton–proton collisions at a center-of-mass energy of 13Te. The data correspond to an integrated luminosity of 35.7fb-1 collected by the CMS experiment at the CERN LHC. The W bosons are identified by their decay into a muon and a neutrino. The charm quarks are tagged via the full reconstruction of D ? (2010) ± mesons that decay via D ? (2010) ± → D + π ± → K ? + π ± + π ± . A cross section is measured in the fiducial region defined by the muon transverse momentum pTμ>26Ge, muon pseudorapidity | η μ | < 2.4 , and charm quark transverse momentum pTc>5Ge. The inclusive cross section for this kinematic range is σ(W+c)=1026±31(stat)+76-72(syst) pb. The cross section is also measured differentially as a function of the pseudorapidity of the muon from the W boson decay. These measurements are compared with theoretical predictions and are used to probe the strange quark content of the proton. ? 2019, CERN for the benefit of the CMS collaboration. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063529604&doi=10.1140%2fepjc%2fs10052-019-6752-1&partnerID=40&md5=78160f1439220dc6b9874fa6ce34577a https://scholars.lib.ntu.edu.tw/handle/123456789/574821 |
ISSN: | 14346044 |
DOI: | 10.1140/epjc/s10052-019-6752-1 |
顯示於: | 物理學系
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