Observation of Z production in proton-lead collisions at LHCb
The first observation of Z boson production in proton-lead collisions at a centre-of-mass energy per proton-nucleon pair of √sNN = 5 TeV is presented. The data sample corresponds to an integrated luminosity of 1.6 nb[superscript −1] collected with the LHCb detector. The Z candidates are reconstructe...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Springer-Verlag Berlin Heidelberg
2014
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| Online Access: | http://hdl.handle.net/1721.1/91175 https://orcid.org/0000-0001-8285-3346 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 |
| _version_ | 1811077637103157248 |
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| author | Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael |
| author_sort | Counts, Ian Thomas Hunt |
| collection | MIT |
| description | The first observation of Z boson production in proton-lead collisions at a centre-of-mass energy per proton-nucleon pair of √sNN = 5 TeV is presented. The data sample corresponds to an integrated luminosity of 1.6 nb[superscript −1] collected with the LHCb detector. The Z candidates are reconstructed from pairs of oppositely charged muons with pseudorapidities between 2.0 and 4.5 and transverse momenta above 20 GeV/c. The invariant dimuon mass is restricted to the range 60 − 120 GeV/c. The Z production cross-section is measured to be
σZ→μ+μ−(fwd)=13.5+5.4−4.0(stat.)±1.2(syst.)nb
in the direction of the proton beam and
σZ→μ+μ−(bwd)=10.7+8.4−5.1(stat.)±1.0(syst.)nb
in the direction of the lead beam, where the first uncertainty is statistical and the second systematic. |
| first_indexed | 2024-09-23T10:46:11Z |
| format | Article |
| id | mit-1721.1/91175 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:46:11Z |
| publishDate | 2014 |
| publisher | Springer-Verlag Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/911752023-02-26T04:24:18Z Observation of Z production in proton-lead collisions at LHCb Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Counts, Ian Thomas Hunt Ilten, Philip James Williams, M. The first observation of Z boson production in proton-lead collisions at a centre-of-mass energy per proton-nucleon pair of √sNN = 5 TeV is presented. The data sample corresponds to an integrated luminosity of 1.6 nb[superscript −1] collected with the LHCb detector. The Z candidates are reconstructed from pairs of oppositely charged muons with pseudorapidities between 2.0 and 4.5 and transverse momenta above 20 GeV/c. The invariant dimuon mass is restricted to the range 60 − 120 GeV/c. The Z production cross-section is measured to be σZ→μ+μ−(fwd)=13.5+5.4−4.0(stat.)±1.2(syst.)nb in the direction of the proton beam and σZ→μ+μ−(bwd)=10.7+8.4−5.1(stat.)±1.0(syst.)nb in the direction of the lead beam, where the first uncertainty is statistical and the second systematic. 2014-10-27T14:05:28Z 2014-10-27T14:05:28Z 2014-09 Article http://purl.org/eprint/type/JournalArticle 1029-8479 http://hdl.handle.net/1721.1/91175 Aaij, R., B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, et al. “Observation of Z Production in Proton-Lead Collisions at LHCb.” J. High Energ. Phys. 2014, no. 9 (September 2014). https://orcid.org/0000-0001-8285-3346 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 en_US http://dx.doi.org/10.1007/jhep09(2014)030 Journal of High Energy Physics Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag Berlin Heidelberg Springer-Verlag |
| spellingShingle | Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael Observation of Z production in proton-lead collisions at LHCb |
| title | Observation of Z production in proton-lead collisions at LHCb |
| title_full | Observation of Z production in proton-lead collisions at LHCb |
| title_fullStr | Observation of Z production in proton-lead collisions at LHCb |
| title_full_unstemmed | Observation of Z production in proton-lead collisions at LHCb |
| title_short | Observation of Z production in proton-lead collisions at LHCb |
| title_sort | observation of z production in proton lead collisions at lhcb |
| url | http://hdl.handle.net/1721.1/91175 https://orcid.org/0000-0001-8285-3346 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 |
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