Measurement of the χ[subscript b](3P) mass and of the relative rate of χ[subscript b1](1P) and χ[subscript b2](1P) production
The production of χ[subscript b] mesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of √s =7 and 8 TeV and corresponding to an integrated luminosity of 3.0 fb[superscript −1]. The χ[subscript b] mesons are identified through t...
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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/1721.1/92541 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 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 production of χ[subscript b] mesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of √s =7 and 8 TeV and corresponding to an integrated luminosity of 3.0 fb[superscript −1]. The χ[subscript b] mesons are identified through their decays to ϒ(1S)[subscript γ] and ϒ(2S)[subscript γ] using photons that converted to e[superscript +]e[superscript −] pairs in the detector. The relative prompt production rate of χ[subscript b1](1P) and χ[subscript b2](1P) mesons is measured as a function of the ϒ(1S) transverse momentum in the χ[subscript b] rapidity range 2.0 < y <4.5. A precise measurement of the χ[subscript b](3P) mass is also performed. Assuming a mass splitting between the χ[subscript b1](3P) and the χ[subscript b2](3P) states of 10.5 [MeV over c[superscript 2]], the measured mass of the χ[subscript b1](3P) meson is
m(χ[subscript b1](3P)) = 10515.7[+2.2 over −3.9](stat)[+1.5 over −2.1](syst) [MeV over c[superscript 2]]. |
| first_indexed | 2024-09-23T08:43:51Z |
| format | Article |
| id | mit-1721.1/92541 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:43:51Z |
| publishDate | 2014 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/925412023-02-26T08:15:45Z Measurement of the χ[subscript b](3P) mass and of the relative rate of χ[subscript b1](1P) and χ[subscript b2](1P) production 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 production of χ[subscript b] mesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of √s =7 and 8 TeV and corresponding to an integrated luminosity of 3.0 fb[superscript −1]. The χ[subscript b] mesons are identified through their decays to ϒ(1S)[subscript γ] and ϒ(2S)[subscript γ] using photons that converted to e[superscript +]e[superscript −] pairs in the detector. The relative prompt production rate of χ[subscript b1](1P) and χ[subscript b2](1P) mesons is measured as a function of the ϒ(1S) transverse momentum in the χ[subscript b] rapidity range 2.0 < y <4.5. A precise measurement of the χ[subscript b](3P) mass is also performed. Assuming a mass splitting between the χ[subscript b1](3P) and the χ[subscript b2](3P) states of 10.5 [MeV over c[superscript 2]], the measured mass of the χ[subscript b1](3P) meson is m(χ[subscript b1](3P)) = 10515.7[+2.2 over −3.9](stat)[+1.5 over −2.1](syst) [MeV over c[superscript 2]]. National Science Foundation (U.S.) 2014-12-29T21:43:25Z 2014-12-29T21:43:25Z 2014-10 2014-09 Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/92541 Aaij, R., B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, et al. “Measurement of the χ[subscript b](3P) Mass and of the Relative Rate of χ[subscript b1](1P) and χ[subscript b2](1P) Production.” J. High Energ. Phys. 2014, no. 10 (October 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/jhep10(2014)088 Journal of High Energy Physics Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag Springer-Verlag |
| spellingShingle | Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael Measurement of the χ[subscript b](3P) mass and of the relative rate of χ[subscript b1](1P) and χ[subscript b2](1P) production |
| title | Measurement of the χ[subscript b](3P) mass and of the relative rate of χ[subscript b1](1P) and χ[subscript b2](1P) production |
| title_full | Measurement of the χ[subscript b](3P) mass and of the relative rate of χ[subscript b1](1P) and χ[subscript b2](1P) production |
| title_fullStr | Measurement of the χ[subscript b](3P) mass and of the relative rate of χ[subscript b1](1P) and χ[subscript b2](1P) production |
| title_full_unstemmed | Measurement of the χ[subscript b](3P) mass and of the relative rate of χ[subscript b1](1P) and χ[subscript b2](1P) production |
| title_short | Measurement of the χ[subscript b](3P) mass and of the relative rate of χ[subscript b1](1P) and χ[subscript b2](1P) production |
| title_sort | measurement of the χ subscript b 3p mass and of the relative rate of χ subscript b1 1p and χ subscript b2 1p production |
| url | http://hdl.handle.net/1721.1/92541 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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