dc.contributor.author | Baringer, Philip S. | |
dc.contributor.author | Bean, Alice | |
dc.contributor.author | Murray, Michael J. | |
dc.contributor.author | Sanders, Stephen J. | |
dc.contributor.author | CMS Collaboration | |
dc.date.accessioned | 2016-11-17T18:53:14Z | |
dc.date.available | 2016-11-17T18:53:14Z | |
dc.date.issued | 2015-03-04 | |
dc.identifier.citation | Chatrchyan, S., Khachatryan, V., Sirunyan, A. M., Adam, W., Bergauer, T., Dragicevic, M., … Frühwirth, R. (2015). Study of Z production in PbPb and pp collisions at sNN−−−√=2.76 TeV in the dimuon and dielectron decay channels. J. High Energ. Phys., 2015(3). doi:10.1007/jhep03(2015)022 | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/22001 | |
dc.description.abstract | The production of Z bosons is studied in the dimuon and dielectron decay channels in PbPb and pp collisions at sNN−−−−√=2.76 TeV, using data collected by the CMS experiment at the LHC. The PbPb data sample corresponds to an integrated luminosity of about 166 μb−1, while the pp data sample collected in 2013 at the same nucleon-nucleon centre-of-mass energy has an integrated luminosity of 5.4 pb−1. The Z boson yield is measured as a function of rapidity, transverse momentum, and collision centrality. The ratio of PbPb to pp yields, scaled by the number of inelastic nucleon-nucleon collisions, is found to be 1.06 ± 0.05 (stat) ± 0.08 (syst) in the dimuon channel and 1.02 ± 0.08 (stat) ± 0.15 (syst) in the dielectron channel, for centrality-integrated Z boson production. This binary collision scaling is seen to hold in the entire kinematic region studied, as expected for a colourless probe that is unaffected by the hot and dense QCD medium produced in heavy ion collisions. | en_US |
dc.publisher | Springer Verlag | en_US |
dc.rights | Open Access, Copyright CERN, for the benefit of the CMS Collaboration. Article funded by SCOAP3. | en_US |
dc.subject | Particle and resonance production | en_US |
dc.subject | Heavy ions | en_US |
dc.subject | Heavy-ion collision | en_US |
dc.subject | Proton-proton scattering | en_US |
dc.subject | ch | en_US |
dc.title | Study of Z production in PbPb and pp collisions at sNN−−−√=2.76 TeV in the dimuon and dielectron decay channels | en_US |
dc.type | Article | en_US |
kusw.kuauthor | Baringer, Philip S. | |
kusw.kuauthor | Bean, Alice | |
kusw.kuauthor | Murray, Michael J. | |
kusw.kuauthor | Sanders, Stephen J. | |
kusw.kudepartment | Physics and Astronomy | en_US |
dc.identifier.doi | 10.1007/JHEP03(2015)022 | en_US |
kusw.oaversion | Scholarly/refereed, publisher version | en_US |
kusw.oapolicy | This item meets KU Open Access policy criteria. | en_US |
dc.rights.accessrights | openAccess | |