Abstract:
A measurement of W boson production in lead-lead collisions at √sNN = 2.76 TeV is presented. It is based on the analysis of data collected with the ATLAS detector at the LHC in 2011 corresponding to an integrated luminosity of 0.14 nb -1 and 0.15 nb -1 in the muon and electron decay channels, respectively. The differential production yields and lepton charge asymmetry are each measured as a function of the average number of participating nucleons ‹N part › and absolute pseudorapidity of the charged lepton. The results are compared to predictions based on next-to-leading-order QCD calculations. These measurements are, in principle, sensitive to possible nuclear modifications to the parton distribution functions and also provide information on scaling of W boson production in multi-nucleon systems. © 2015, CERN for the benefit of the ATLAS collaboration.
Referencias:
- Arsene, I., (2005) Nucl. Phys. A, , [BRAHMS Collaboration], 757, 1 (). arXiv:nucl-ex/0410020
- (2005) Nucl. Phys. A, , B.B. Back et al. [PHOBOS Collaboration], 757, 28 . arXiv:nucl-ex/0410022
- (2005) Nucl. Phys. A, , J. Adams et al. [STAR Collaboration], 757, 102 . arXiv:nucl-ex/0501009
- (2005) Nucl. Phys. A, , K. Adcox et al. [PHENIX Collaboration],757, 184 .arXiv:nucl-ex/0410003
- (2012) Phys. Lett. B, , 710, 363 . arXiv:1108.6027
- (2011) JHEP, , 1108, 141. arXiv:1107.4800
- Tannenbaum, M.J., (2006) Rep. Prog. Phys., , 69, 2005 . arXiv:nucl-ex/0603003
- Mohanty, B., Nucl. Phys, , A830, 899C arXiv:0907.4476
- Fukushima, K., Hatsuda, T., (2011) Rep. Prog. Phys., 74, p. 014001. , arXiv:1005.4814
- Mohanty, B., (2011) New J. Phys., 13, p. 065031. , arXiv:1102.2495
- Muller, B., Schukraft, J., Wyslouch, B., (2012) Ann. Rev. Nucl. Part. Sci., 62, p. 361. , arXiv:1202.3233
- (2003) Phys. Rev. Lett., , S.S. Adler et al. [PHENIX Collaboration], 91, 072301 ().arXiv:nucl-ex/0304022
- (2003) Phys. Rev. Lett., , J. Adams et al. [STAR Collaboration], 91, 172302 (). arXiv:nucl-ex/0305015
- Aamodt, K., (2011) Phys. Lett. B, , 696, 30. arXiv:1012.1004
- (2012) Eur. Phys. J, , 72, 1945 arXiv:1202arXiv:1202.2554
- (2014), arXiv:1406.2979; (2013) Phys. Lett. B, , 719, 220 arXiv:1208 arXiv:1208.1967
- (2010) Phys. Rev. Lett., , 105, 252303 arXiv:1011.6182
- (2011) Phys. Rev. C, , 84, 024906 arXiv:1102 arXiv:1102.1957
- (2012) Phys. Lett. B, , 712, 176 . arXiv:1202.5022
- Afanasiev . [PHENIX Collaboration], Phys (2012) Rev. Lett.. Lett., , S. Afanasiev et al. [PHENIX Collaboration] 109, 152302 (2012). arXiv:1205.5759
- (2013) Phys. Rev. Lett., , 110, 022301 . arXiv:1210.6486
- (2011) Phys. Rev. Lett., , 106, 212301 . arXiv:1102.5435
- (2012) Phys. Lett. B, , 710, 256 . arXiv:1201.3093
- (2012) Phys. Lett. B, , 715, 66 (). arXiv:1205.6334
- (2012) Phys. Rev. D, , 85, 072004 (). arXiv:1109.5141
- (2012) Phys. Rev. Lett., , 109, 111806 arXiv:1206.2598
- (2013) Phys. Rev. D, , arXiv:1312.6283
- (2009) Phys. Rev. Lett., p. 0901. , 102, 181801. arXiv:0901.2169
- (2013) Phys. Rev. D, , 88, 091102 . arXiv arXiv:1309.2591
- Altarelli, G., Ellis, R.K., Martinelli, G., (1979) Nucl. Phys. B, 157, p. 461
- Kubar-Andre, J., Paige, F.E., (1979) Phys. Rev., 19, p. 221
- Kubar, J., Le Bellac, M., Meunier, J., Plaut, G., (1980) Nucl. Phys. B, 175, p. 251
- Paukkunen, H., Salgado, C.A., (2011) JHEP, , We thank the authors for providing us with their EPS09 predictions. arXiv:1010.5392
- (2008) JINST, 3
- http://cds.cern.ch/record/1009649, LHCC-I-016. CERN-LHCC-2007-001; (2012) Eur. Phys. J, , C 72, 1849 arXiv:1110.1530
- Agostinelli, S., (2003) Nucl. Instrum. Meth. A, 506, p. 250
- (2010) Eur. Phys. J. C, , 70, 823 . arXiv:1005.4568
- Wang, X.N., Gyulassy, M., (1991) Phys. Rev. D, 44, p. 3501
- Alioli, S., Nason, P., Oleari, C., Re, E., (2008) JHEP, 807, p. 060. , arXiv:0805.4802
- Sjostrand, T., Mrenna, S., Skands, P.Z., (2008) Comput. Phys. Commun., 178, p. 852. , arXiv:0710.3820
- Lai, H.-L., (2010) Phys. Rev. D, 82, p. 074024. , arXiv:1007.2241
- Sherstnev, A., Thorne, R., (2008) Eur. Phys. J. C, 55, p. 553. , arXiv:0711.2473
- Jadach, S., Kuhn, J.H., Was, Z., (1990) Comput. Phys. Commun., 64, p. 275
- Golonka, P., Was, Z., (2006) Eur. Phys. J. C, 45, p. 97. , arXiv:hep-ph/0506026
- (2012) Phys. Lett. B, , 707, 330 (). arXiv:1108.6018
- http://cds.cern.ch/record/1473425, ATLAS-CONF-2012-122; Miller, M.L., Reygers, K., Sanders, S.J., Steinberg, P., (2007) Ann. Rev. Nucl. Part. Sci., 57, p. 205. , arXiv:nucl-ex/0701025
- Beringer, J., Particle Data Group, Phys (2012) Rev. D, 86 (10001). , http://pdg.lbl.gov/2013/reviews/contents_sports.html
- http://cds.cern.ch/record/1463915, ATLAS-CONF-2012-101; http://cds.cern.ch/record/1277675, ATLAS-CONF-2010-036; http://cds.cern.ch/record/1326960, ATLAS-CONF-2011-003; (2012) Eur. Phys. J. C, , 72, 1909 . arXiv:1110.3174
- (2014) Eur. Phys. J. C, , arXiv:1404.2240
- (2012) Phys. Rev. Lett., , B. Abelev et al. [ALICE Collaboration], 109, 112301.arXiv:1205.6443
- http://cds.cern.ch/record/1580207, ATLAS-CONF-2013-088; Eskola, K., Paukkunen, H., Salgado, C., (2009) JHEP, 904, p. 065. , arXiv:0902.4154
- (2012) JHEP, , 1206, 058 .arXiv:1204.1620
Citas:
---------- APA ----------
(2015)
. Measurement of the production and lepton charge asymmetry of W bosons in Pb+Pb collisions at √sNN = 2.76 TeV with the ATLAS detector. European Physical Journal C, 75(1), 1-30.
http://dx.doi.org/10.1140/epjc/s10052-014-3231-6---------- CHICAGO ----------
ATLAS Collaboration.
"Measurement of the production and lepton charge asymmetry of W bosons in Pb+Pb collisions at √sNN = 2.76 TeV with the ATLAS detector"
. European Physical Journal C 75, no. 1
(2015) : 1-30.
http://dx.doi.org/10.1140/epjc/s10052-014-3231-6---------- MLA ----------
ATLAS Collaboration.
"Measurement of the production and lepton charge asymmetry of W bosons in Pb+Pb collisions at √sNN = 2.76 TeV with the ATLAS detector"
. European Physical Journal C, vol. 75, no. 1, 2015, pp. 1-30.
http://dx.doi.org/10.1140/epjc/s10052-014-3231-6---------- VANCOUVER ----------
ATLAS Collaboration. Measurement of the production and lepton charge asymmetry of W bosons in Pb+Pb collisions at √sNN = 2.76 TeV with the ATLAS detector. Eur. Phys. J. C. 2015;75(1):1-30.
http://dx.doi.org/10.1140/epjc/s10052-014-3231-6