Measurement of the J/ψ meson and b-hadron production cross sections in pp̄ collisions at √s = 1960 GeV
We present a new measurement of the inclusive and differential production cross sections of J/ψ mesons and b hadrons in proton-antiproton collisions at √s = 1960 GeV. The data correspond to an integrated luminosity of 39.7 pb-1 collected by the CDF run II detector. We find the integrated cross secti...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2005
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| _version_ | 1826293080059281408 |
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| author | Acosta, D Adelman, J Affolder, T Akimoto, T Albrow, MG Ambrose, D Amerio, S Amidei, D Anastassov, A Anikeev, K Annovi, A Antos, J Aoki, M Apollinari, G Arisawa, T Arguin, J Artikov, A Ashmanskas, W Attal, A Azfar, F Azzi-Bacchetta, P Bacchetta, N Bachacou, H Badgett, W Barbaro-Galtieri, A |
| author_facet | Acosta, D Adelman, J Affolder, T Akimoto, T Albrow, MG Ambrose, D Amerio, S Amidei, D Anastassov, A Anikeev, K Annovi, A Antos, J Aoki, M Apollinari, G Arisawa, T Arguin, J Artikov, A Ashmanskas, W Attal, A Azfar, F Azzi-Bacchetta, P Bacchetta, N Bachacou, H Badgett, W Barbaro-Galtieri, A |
| author_sort | Acosta, D |
| collection | OXFORD |
| description | We present a new measurement of the inclusive and differential production cross sections of J/ψ mesons and b hadrons in proton-antiproton collisions at √s = 1960 GeV. The data correspond to an integrated luminosity of 39.7 pb-1 collected by the CDF run II detector. We find the integrated cross section for inclusive J/ψ production for all transverse momenta from 0 to 20 GeV/c in the rapidity range |y| < 0.6 to be 4.08 ± 0.02(Stat)-0.33+0.36(syst) μb. We separate the fraction of J/ψ events from the decay of the long-lived b hadrons using the lifetime distribution in all events with pT(J/ψ) > 1.25 GeV/c. We find the total cross section for b hadrons, including both hadrons and antihadrons, decaying to J/ψ with transverse momenta greater than 1.25 GeV/c in the rapidity range |y(J/ψ)| < 0.6 is 0.330 ± 0.005(stat) -0.033+0.036(syst) μb. Using a Monte Carlo simulation of the decay kinematics of b hadrons to all final states containing a J/ψ, we extract the first measurement of the total single b-hadron cross section down to zero transverse momentum at √s = 1960 GeV. We find the total single b-hadron cross section integrated over all transverse momenta for b hadrons in the rapidity range |y| < 0.6 to be 17.6 ± 0.4(stat) -2.3+2.5(syst) μb. © 2005 The American Physical Society. |
| first_indexed | 2024-03-07T03:24:32Z |
| format | Journal article |
| id | oxford-uuid:b8960714-7c7b-4aa5-baac-e3cb290d871f |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:24:32Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:b8960714-7c7b-4aa5-baac-e3cb290d871f2022-03-27T04:56:57ZMeasurement of the J/ψ meson and b-hadron production cross sections in pp̄ collisions at √s = 1960 GeVJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b8960714-7c7b-4aa5-baac-e3cb290d871fEnglishSymplectic Elements at Oxford2005Acosta, DAdelman, JAffolder, TAkimoto, TAlbrow, MGAmbrose, DAmerio, SAmidei, DAnastassov, AAnikeev, KAnnovi, AAntos, JAoki, MApollinari, GArisawa, TArguin, JArtikov, AAshmanskas, WAttal, AAzfar, FAzzi-Bacchetta, PBacchetta, NBachacou, HBadgett, WBarbaro-Galtieri, AWe present a new measurement of the inclusive and differential production cross sections of J/ψ mesons and b hadrons in proton-antiproton collisions at √s = 1960 GeV. The data correspond to an integrated luminosity of 39.7 pb-1 collected by the CDF run II detector. We find the integrated cross section for inclusive J/ψ production for all transverse momenta from 0 to 20 GeV/c in the rapidity range |y| < 0.6 to be 4.08 ± 0.02(Stat)-0.33+0.36(syst) μb. We separate the fraction of J/ψ events from the decay of the long-lived b hadrons using the lifetime distribution in all events with pT(J/ψ) > 1.25 GeV/c. We find the total cross section for b hadrons, including both hadrons and antihadrons, decaying to J/ψ with transverse momenta greater than 1.25 GeV/c in the rapidity range |y(J/ψ)| < 0.6 is 0.330 ± 0.005(stat) -0.033+0.036(syst) μb. Using a Monte Carlo simulation of the decay kinematics of b hadrons to all final states containing a J/ψ, we extract the first measurement of the total single b-hadron cross section down to zero transverse momentum at √s = 1960 GeV. We find the total single b-hadron cross section integrated over all transverse momenta for b hadrons in the rapidity range |y| < 0.6 to be 17.6 ± 0.4(stat) -2.3+2.5(syst) μb. © 2005 The American Physical Society. |
| spellingShingle | Acosta, D Adelman, J Affolder, T Akimoto, T Albrow, MG Ambrose, D Amerio, S Amidei, D Anastassov, A Anikeev, K Annovi, A Antos, J Aoki, M Apollinari, G Arisawa, T Arguin, J Artikov, A Ashmanskas, W Attal, A Azfar, F Azzi-Bacchetta, P Bacchetta, N Bachacou, H Badgett, W Barbaro-Galtieri, A Measurement of the J/ψ meson and b-hadron production cross sections in pp̄ collisions at √s = 1960 GeV |
| title | Measurement of the J/ψ meson and b-hadron production cross sections in pp̄ collisions at √s = 1960 GeV |
| title_full | Measurement of the J/ψ meson and b-hadron production cross sections in pp̄ collisions at √s = 1960 GeV |
| title_fullStr | Measurement of the J/ψ meson and b-hadron production cross sections in pp̄ collisions at √s = 1960 GeV |
| title_full_unstemmed | Measurement of the J/ψ meson and b-hadron production cross sections in pp̄ collisions at √s = 1960 GeV |
| title_short | Measurement of the J/ψ meson and b-hadron production cross sections in pp̄ collisions at √s = 1960 GeV |
| title_sort | measurement of the j ψ meson and b hadron production cross sections in pp collisions at √s 1960 gev |
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