Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass
Abstract: The production of beauty and charm quarks in ep interactions has been studied with the ZEUS detector at HERA for exchanged four-momentum squared 5 < Q2< 1000 GeV2 using an integrated luminosity of 354 pb−1. The beauty and charm content in events with at least one jet have bee...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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Dr. Dietrich Steinkopff Verlag GmbH and Co. KG
2014
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| _version_ | 1797079922174328832 |
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| author | Cteq, C Abramowicz, H Abt, I Adamczyk, L Adamus, M Aggarwal, R Antonelli, S Arslan, O Aushev, V Aushev, Y Bachynska, O Barakbaev, A Bartosik, N Behnke, O Behr, J Behrens, U Bertolin, A Bhadra, S Bloch, I Bokhonov, V Boos, E Borras, K Brock, I Brugnera, R Bruni, A |
| author_facet | Cteq, C Abramowicz, H Abt, I Adamczyk, L Adamus, M Aggarwal, R Antonelli, S Arslan, O Aushev, V Aushev, Y Bachynska, O Barakbaev, A Bartosik, N Behnke, O Behr, J Behrens, U Bertolin, A Bhadra, S Bloch, I Bokhonov, V Boos, E Borras, K Brock, I Brugnera, R Bruni, A |
| author_sort | Cteq, C |
| collection | OXFORD |
| description | Abstract: The production of beauty and charm quarks in ep interactions has been studied with the ZEUS detector at HERA for exchanged four-momentum squared 5 < Q2< 1000 GeV2 using an integrated luminosity of 354 pb−1. The beauty and charm content in events with at least one jet have been extracted using the invariant mass of charged tracks associated with secondary vertices and the decay-length significance of these vertices. Differential cross sections as a function of Q2, Bjorken x, jet trans- verse energy and pseudorapidity were measured and compared with next-to-leading-order QCD calculations. The beauty and charm contributions to the proton structure functions were extracted from the double-differential cross section as a function of x and Q2. The running beauty-quark mass, mb at the scale mb, was determined from a QCD fit at next-to-leading order to HERA data for the first time and found to be mb(mb) = 4.07 ± 0.14 (fit)− 0.07+ 0.01(mod.)− 0.00+ 0.05(param.)− 0.05+ 0.08(theo.) GeV. |
| first_indexed | 2024-03-07T00:52:47Z |
| format | Journal article |
| id | oxford-uuid:86f5ca16-c72f-4854-a37d-56b3dabe539b |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:52:47Z |
| publishDate | 2014 |
| publisher | Dr. Dietrich Steinkopff Verlag GmbH and Co. KG |
| record_format | dspace |
| spelling | oxford-uuid:86f5ca16-c72f-4854-a37d-56b3dabe539b2022-03-26T22:07:43ZMeasurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark massJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:86f5ca16-c72f-4854-a37d-56b3dabe539bEnglishSymplectic Elements at OxfordDr. Dietrich Steinkopff Verlag GmbH and Co. KG2014Cteq, CAbramowicz, HAbt, IAdamczyk, LAdamus, MAggarwal, RAntonelli, SArslan, OAushev, VAushev, YBachynska, OBarakbaev, ABartosik, NBehnke, OBehr, JBehrens, UBertolin, ABhadra, SBloch, IBokhonov, VBoos, EBorras, KBrock, IBrugnera, RBruni, AAbstract: The production of beauty and charm quarks in ep interactions has been studied with the ZEUS detector at HERA for exchanged four-momentum squared 5 < Q2< 1000 GeV2 using an integrated luminosity of 354 pb−1. The beauty and charm content in events with at least one jet have been extracted using the invariant mass of charged tracks associated with secondary vertices and the decay-length significance of these vertices. Differential cross sections as a function of Q2, Bjorken x, jet trans- verse energy and pseudorapidity were measured and compared with next-to-leading-order QCD calculations. The beauty and charm contributions to the proton structure functions were extracted from the double-differential cross section as a function of x and Q2. The running beauty-quark mass, mb at the scale mb, was determined from a QCD fit at next-to-leading order to HERA data for the first time and found to be mb(mb) = 4.07 ± 0.14 (fit)− 0.07+ 0.01(mod.)− 0.00+ 0.05(param.)− 0.05+ 0.08(theo.) GeV. |
| spellingShingle | Cteq, C Abramowicz, H Abt, I Adamczyk, L Adamus, M Aggarwal, R Antonelli, S Arslan, O Aushev, V Aushev, Y Bachynska, O Barakbaev, A Bartosik, N Behnke, O Behr, J Behrens, U Bertolin, A Bhadra, S Bloch, I Bokhonov, V Boos, E Borras, K Brock, I Brugnera, R Bruni, A Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass |
| title | Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass |
| title_full | Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass |
| title_fullStr | Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass |
| title_full_unstemmed | Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass |
| title_short | Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass |
| title_sort | measurement of beauty and charm production in deep inelastic scattering at hera and measurement of the beauty quark mass |
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