Measurement of b-Quark Fragmentation Fractions in pp[over ¯] Collisions at sqrt[s]=1.8 TeV.
We have studied the production of B hadrons in 1.8-TeV pp[over ¯] collisions. We present measurements of the fragmentation fractions, f_{u}, f_{d}, f_{s}, and f_{baryon}, of produced b quarks that yield B^{+}, B^{0}, B_{s}^{0}, and Λ[over ¯]_{b}^{0} hadrons. Reconstruction of five electron-charm fin...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2000
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| _version_ | 1826298119284850688 |
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| author | Affolder, T Akimoto, H Akopian, A Albrow, MG Amaral, P Amendolia, SR Amidei, D Antos, J Apollinari, G Arisawa, T Asakawa, T Ashmanskas, W Atac, M Azzi-Bacchetta, P Bacchetta, N Bailey, M Bailey, S de Barbaro, P Barbaro-Galtieri, A Barnes, V Barnett, B Barone, M Bauer, G Bedeschi, F Belforte, S |
| author_facet | Affolder, T Akimoto, H Akopian, A Albrow, MG Amaral, P Amendolia, SR Amidei, D Antos, J Apollinari, G Arisawa, T Asakawa, T Ashmanskas, W Atac, M Azzi-Bacchetta, P Bacchetta, N Bailey, M Bailey, S de Barbaro, P Barbaro-Galtieri, A Barnes, V Barnett, B Barone, M Bauer, G Bedeschi, F Belforte, S |
| author_sort | Affolder, T |
| collection | OXFORD |
| description | We have studied the production of B hadrons in 1.8-TeV pp[over ¯] collisions. We present measurements of the fragmentation fractions, f_{u}, f_{d}, f_{s}, and f_{baryon}, of produced b quarks that yield B^{+}, B^{0}, B_{s}^{0}, and Λ[over ¯]_{b}^{0} hadrons. Reconstruction of five electron-charm final states yields f_{s}/( f_{u}+f_{d})=0.213±0.068 and f_{baryon}/( f_{u}+f_{d})=0.118±0.042, assuming f_{u}=f_{d}. If all B hadrons produced in pp[over ¯] collisions cascade to one of these four hadrons, we determine f_{u}=f_{d}=0.375±0.023, f_{s}=0.160±0.044, and f_{baryon}=0.090±0.029. If we do not assume f_{u}=f_{d}, we find f_{d}/f_{u}=0.84±0.16. |
| first_indexed | 2024-03-07T04:41:59Z |
| format | Journal article |
| id | oxford-uuid:d1f434bd-10e8-475b-8861-64e068c1597e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:41:59Z |
| publishDate | 2000 |
| record_format | dspace |
| spelling | oxford-uuid:d1f434bd-10e8-475b-8861-64e068c1597e2022-03-27T08:00:33ZMeasurement of b-Quark Fragmentation Fractions in pp[over ¯] Collisions at sqrt[s]=1.8 TeV.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d1f434bd-10e8-475b-8861-64e068c1597eEnglishSymplectic Elements at Oxford2000Affolder, TAkimoto, HAkopian, AAlbrow, MGAmaral, PAmendolia, SRAmidei, DAntos, JApollinari, GArisawa, TAsakawa, TAshmanskas, WAtac, MAzzi-Bacchetta, PBacchetta, NBailey, MBailey, Sde Barbaro, PBarbaro-Galtieri, ABarnes, VBarnett, BBarone, MBauer, GBedeschi, FBelforte, SWe have studied the production of B hadrons in 1.8-TeV pp[over ¯] collisions. We present measurements of the fragmentation fractions, f_{u}, f_{d}, f_{s}, and f_{baryon}, of produced b quarks that yield B^{+}, B^{0}, B_{s}^{0}, and Λ[over ¯]_{b}^{0} hadrons. Reconstruction of five electron-charm final states yields f_{s}/( f_{u}+f_{d})=0.213±0.068 and f_{baryon}/( f_{u}+f_{d})=0.118±0.042, assuming f_{u}=f_{d}. If all B hadrons produced in pp[over ¯] collisions cascade to one of these four hadrons, we determine f_{u}=f_{d}=0.375±0.023, f_{s}=0.160±0.044, and f_{baryon}=0.090±0.029. If we do not assume f_{u}=f_{d}, we find f_{d}/f_{u}=0.84±0.16. |
| spellingShingle | Affolder, T Akimoto, H Akopian, A Albrow, MG Amaral, P Amendolia, SR Amidei, D Antos, J Apollinari, G Arisawa, T Asakawa, T Ashmanskas, W Atac, M Azzi-Bacchetta, P Bacchetta, N Bailey, M Bailey, S de Barbaro, P Barbaro-Galtieri, A Barnes, V Barnett, B Barone, M Bauer, G Bedeschi, F Belforte, S Measurement of b-Quark Fragmentation Fractions in pp[over ¯] Collisions at sqrt[s]=1.8 TeV. |
| title | Measurement of b-Quark Fragmentation Fractions in pp[over ¯] Collisions at sqrt[s]=1.8 TeV. |
| title_full | Measurement of b-Quark Fragmentation Fractions in pp[over ¯] Collisions at sqrt[s]=1.8 TeV. |
| title_fullStr | Measurement of b-Quark Fragmentation Fractions in pp[over ¯] Collisions at sqrt[s]=1.8 TeV. |
| title_full_unstemmed | Measurement of b-Quark Fragmentation Fractions in pp[over ¯] Collisions at sqrt[s]=1.8 TeV. |
| title_short | Measurement of b-Quark Fragmentation Fractions in pp[over ¯] Collisions at sqrt[s]=1.8 TeV. |
| title_sort | measurement of b quark fragmentation fractions in pp over ¯ collisions at sqrt s 1 8 tev |
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