Measurement of Υ production in pp collisions at √s = 2.76 TeV
The production of Υ(1S), Υ(2S) and Υ(3S) mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of 3.3 pb[superscript −1] collected in proton–proton collisions at a centre-of-mass energy of √s = 2.76 TeV. The diffe...
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| Format: | Article |
| Language: | en_US |
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Springer-Verlag
2014
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| Online Access: | http://hdl.handle.net/1721.1/88429 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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| author | Counts, Ian Thomas Hunt Williams, Michael Ilten, Philip J |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Counts, Ian Thomas Hunt Williams, Michael Ilten, Philip J |
| author_sort | Counts, Ian Thomas Hunt |
| collection | MIT |
| description | The production of Υ(1S), Υ(2S) and Υ(3S) mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of 3.3 pb[superscript −1] collected in proton–proton collisions at a centre-of-mass energy of √s = 2.76 TeV. The differential production cross-sections times dimuon branching fractions are measured as functions of the Υ transverse momentum and rapidity, over the ranges p[subscript T] < 15 GeV/c and 2.0 < y < 4.5. The total cross-sections in this kinematic region, assuming unpolarised production, are measured to be σ(pp → Υ(1S)X) × B(Υ(1S) → μ[superscript +]μ[superscript −]) = 1.111 ± 0.043 ± 0.044 nb, σ(pp → Υ(2S)X) × B(Υ(2S) → μ[superscript +]μ[superscript −]) = 0.264 ± 0.023 ± 0.011 nb, σ(pp → Υ(3S)X) × B(Υ(3S) → μ[superscript +]μ[superscript −]) = 0.159 ± 0.020 ± 0.007 nb, where the first uncertainty is statistical and the second systematic. |
| first_indexed | 2024-09-23T10:01:32Z |
| format | Article |
| id | mit-1721.1/88429 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:01:32Z |
| publishDate | 2014 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/884292023-02-26T05:43:58Z Measurement of Υ production in pp collisions at √s = 2.76 TeV Counts, Ian Thomas Hunt Williams, Michael Ilten, Philip J Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Counts, Ian Thomas Hunt Ilten, Philip James Williams, Michael The production of Υ(1S), Υ(2S) and Υ(3S) mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of 3.3 pb[superscript −1] collected in proton–proton collisions at a centre-of-mass energy of √s = 2.76 TeV. The differential production cross-sections times dimuon branching fractions are measured as functions of the Υ transverse momentum and rapidity, over the ranges p[subscript T] < 15 GeV/c and 2.0 < y < 4.5. The total cross-sections in this kinematic region, assuming unpolarised production, are measured to be σ(pp → Υ(1S)X) × B(Υ(1S) → μ[superscript +]μ[superscript −]) = 1.111 ± 0.043 ± 0.044 nb, σ(pp → Υ(2S)X) × B(Υ(2S) → μ[superscript +]μ[superscript −]) = 0.264 ± 0.023 ± 0.011 nb, σ(pp → Υ(3S)X) × B(Υ(3S) → μ[superscript +]μ[superscript −]) = 0.159 ± 0.020 ± 0.007 nb, where the first uncertainty is statistical and the second systematic. National Science Foundation (U.S.) 2014-07-18T13:21:06Z 2014-07-18T13:21:06Z 2014-04 2014-02 Article http://purl.org/eprint/type/JournalArticle 1434-6044 1434-6052 http://hdl.handle.net/1721.1/88429 Aaij, R., B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, et al. “Measurement of Υ production in pp collisions at √s = 2.76 TeV.” Eur. Phys. J. C 74, no. 4 (April 2014). © CERN for the benefit of the LHCb collaboration 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/10.1140/epjc/s10052-014-2835-1 The European Physical Journal C Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag Springer-Verlag |
| spellingShingle | Counts, Ian Thomas Hunt Williams, Michael Ilten, Philip J Measurement of Υ production in pp collisions at √s = 2.76 TeV |
| title | Measurement of Υ production in pp collisions at √s = 2.76 TeV |
| title_full | Measurement of Υ production in pp collisions at √s = 2.76 TeV |
| title_fullStr | Measurement of Υ production in pp collisions at √s = 2.76 TeV |
| title_full_unstemmed | Measurement of Υ production in pp collisions at √s = 2.76 TeV |
| title_short | Measurement of Υ production in pp collisions at √s = 2.76 TeV |
| title_sort | measurement of υ production in pp collisions at √s 2 76 tev |
| url | http://hdl.handle.net/1721.1/88429 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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