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Measurement of the open beauty and charm production cross sections in two photon collisions with DELPHI
Heavy b and c quark production in gamma gamma collisions has been measured through semileptonic decays with the DELPHI detector at LEP. The 413 p/sup -1/1 data were collected at center-of-mass energies from 189 GeV to 209 GeV. The corresponding extracted cross sections sigma (e/sup +/e/sup -/ to e/s...
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| Lenguaje: | eng |
| Publicado: |
2004
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| Acceso en línea: | https://dx.doi.org/10.1016/j.nuclphysbps.2003.11.031 http://cds.cern.ch/record/816666 |
| _version_ | 1780905422794784768 |
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| author | Da Silva, W |
| author_facet | Da Silva, W |
| author_sort | Da Silva, W |
| collection | CERN |
| description | Heavy b and c quark production in gamma gamma collisions has been measured through semileptonic decays with the DELPHI detector at LEP. The 413 p/sup -1/1 data were collected at center-of-mass energies from 189 GeV to 209 GeV. The corresponding extracted cross sections sigma (e/sup +/e/sup -/ to e/sup +/e/sup -/bbX) and sigma (e/sup +/e- to e/sup +/e/sup -/ccX) are compared to NLO perturbative QCD calculations. The cross section for b production is found to exceed QCD predictions by a factor of about 3. K-lepton double tagging, used for the first time in gamma gamma physics, confirms this excess. (16 refs). |
| id | cern-816666 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2004 |
| record_format | invenio |
| spelling | cern-8166662019-09-30T06:29:59Zdoi:10.1016/j.nuclphysbps.2003.11.031http://cds.cern.ch/record/816666engDa Silva, WMeasurement of the open beauty and charm production cross sections in two photon collisions with DELPHIParticle Physics - ExperimentHeavy b and c quark production in gamma gamma collisions has been measured through semileptonic decays with the DELPHI detector at LEP. The 413 p/sup -1/1 data were collected at center-of-mass energies from 189 GeV to 209 GeV. The corresponding extracted cross sections sigma (e/sup +/e/sup -/ to e/sup +/e/sup -/bbX) and sigma (e/sup +/e- to e/sup +/e/sup -/ccX) are compared to NLO perturbative QCD calculations. The cross section for b production is found to exceed QCD predictions by a factor of about 3. K-lepton double tagging, used for the first time in gamma gamma physics, confirms this excess. (16 refs).oai:cds.cern.ch:8166662004 |
| spellingShingle | Particle Physics - Experiment Da Silva, W Measurement of the open beauty and charm production cross sections in two photon collisions with DELPHI |
| title | Measurement of the open beauty and charm production cross sections in two photon collisions with DELPHI |
| title_full | Measurement of the open beauty and charm production cross sections in two photon collisions with DELPHI |
| title_fullStr | Measurement of the open beauty and charm production cross sections in two photon collisions with DELPHI |
| title_full_unstemmed | Measurement of the open beauty and charm production cross sections in two photon collisions with DELPHI |
| title_short | Measurement of the open beauty and charm production cross sections in two photon collisions with DELPHI |
| title_sort | measurement of the open beauty and charm production cross sections in two photon collisions with delphi |
| topic | Particle Physics - Experiment |
| url | https://dx.doi.org/10.1016/j.nuclphysbps.2003.11.031 http://cds.cern.ch/record/816666 |
| work_keys_str_mv | AT dasilvaw measurementoftheopenbeautyandcharmproductioncrosssectionsintwophotoncollisionswithdelphi |