A MEASUREMENT OF D-MESON PRODUCTION IN Z(0) HADRONIC DECAYS
A study of the fragmentation properties of charm and bottom quarks into D mesons is presented. From 263 700 Z0 hadronic decays collected in 1991 with the DELPHI detector at the LEP collider, D0, D+ and D*+ are reconstructed in the modes K-π+, K-π+K+ and D0π+ followed by D0→K-π+, respectively. The fr...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
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1993
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| _version_ | 1826273728811499520 |
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| author | Abreu, P Adam, W Adye, T Agasi, E Ajinenko, I Aleksan, R Alekseev, G Algeri, A Allen, P Almehed, A Alvsvaag, S Amaldi, U Andreazza, A Antilogus, P Apel, W Apsimon, R Arnoud, Y Asman, B Augustin, J Augustinus, A Baillon, P Bambade, P Barao, F Barate, R Barbiellini, G |
| author_facet | Abreu, P Adam, W Adye, T Agasi, E Ajinenko, I Aleksan, R Alekseev, G Algeri, A Allen, P Almehed, A Alvsvaag, S Amaldi, U Andreazza, A Antilogus, P Apel, W Apsimon, R Arnoud, Y Asman, B Augustin, J Augustinus, A Baillon, P Bambade, P Barao, F Barate, R Barbiellini, G |
| author_sort | Abreu, P |
| collection | OXFORD |
| description | A study of the fragmentation properties of charm and bottom quarks into D mesons is presented. From 263 700 Z0 hadronic decays collected in 1991 with the DELPHI detector at the LEP collider, D0, D+ and D*+ are reconstructed in the modes K-π+, K-π+K+ and D0π+ followed by D0→K-π+, respectively. The fractional decay widths {Mathematical expression} are determined, and first results are presented for the production of D mesons from {Mathematical expression} and {Mathematical expression} events separately. The average energy fraction of D*± in charm quark fragmentation is found to be 〈XE(D*)〉c=0.487± 0.015 (stat)±0.005 (sys.). Assuming that the fraction of Ds and charm-baryons produced at LEP is similar to that around 10 GeV, the Z0 partial width into charm quark pairs is determined to be Γc/Γh=0.187±0.031 (stat)±0.023 (sys). The probability for a b quark to fragment into {Mathematical expression} or b-baryons is inferred to be 0.268±0.094 (stat)±0.100 (sys) from the measured probability that it fragments into a {Mathematical expression} or B-. © 1993 Springer-Verlag. |
| first_indexed | 2024-03-06T22:32:38Z |
| format | Journal article |
| id | oxford-uuid:58c714e9-76a3-4260-9653-97d6649e5738 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T22:32:38Z |
| publishDate | 1993 |
| record_format | dspace |
| spelling | oxford-uuid:58c714e9-76a3-4260-9653-97d6649e57382022-03-26T17:05:46ZA MEASUREMENT OF D-MESON PRODUCTION IN Z(0) HADRONIC DECAYSJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:58c714e9-76a3-4260-9653-97d6649e5738Symplectic Elements at Oxford1993Abreu, PAdam, WAdye, TAgasi, EAjinenko, IAleksan, RAlekseev, GAlgeri, AAllen, PAlmehed, AAlvsvaag, SAmaldi, UAndreazza, AAntilogus, PApel, WApsimon, RArnoud, YAsman, BAugustin, JAugustinus, ABaillon, PBambade, PBarao, FBarate, RBarbiellini, GA study of the fragmentation properties of charm and bottom quarks into D mesons is presented. From 263 700 Z0 hadronic decays collected in 1991 with the DELPHI detector at the LEP collider, D0, D+ and D*+ are reconstructed in the modes K-π+, K-π+K+ and D0π+ followed by D0→K-π+, respectively. The fractional decay widths {Mathematical expression} are determined, and first results are presented for the production of D mesons from {Mathematical expression} and {Mathematical expression} events separately. The average energy fraction of D*± in charm quark fragmentation is found to be 〈XE(D*)〉c=0.487± 0.015 (stat)±0.005 (sys.). Assuming that the fraction of Ds and charm-baryons produced at LEP is similar to that around 10 GeV, the Z0 partial width into charm quark pairs is determined to be Γc/Γh=0.187±0.031 (stat)±0.023 (sys). The probability for a b quark to fragment into {Mathematical expression} or b-baryons is inferred to be 0.268±0.094 (stat)±0.100 (sys) from the measured probability that it fragments into a {Mathematical expression} or B-. © 1993 Springer-Verlag. |
| spellingShingle | Abreu, P Adam, W Adye, T Agasi, E Ajinenko, I Aleksan, R Alekseev, G Algeri, A Allen, P Almehed, A Alvsvaag, S Amaldi, U Andreazza, A Antilogus, P Apel, W Apsimon, R Arnoud, Y Asman, B Augustin, J Augustinus, A Baillon, P Bambade, P Barao, F Barate, R Barbiellini, G A MEASUREMENT OF D-MESON PRODUCTION IN Z(0) HADRONIC DECAYS |
| title | A MEASUREMENT OF D-MESON PRODUCTION IN Z(0) HADRONIC DECAYS |
| title_full | A MEASUREMENT OF D-MESON PRODUCTION IN Z(0) HADRONIC DECAYS |
| title_fullStr | A MEASUREMENT OF D-MESON PRODUCTION IN Z(0) HADRONIC DECAYS |
| title_full_unstemmed | A MEASUREMENT OF D-MESON PRODUCTION IN Z(0) HADRONIC DECAYS |
| title_short | A MEASUREMENT OF D-MESON PRODUCTION IN Z(0) HADRONIC DECAYS |
| title_sort | measurement of d meson production in z 0 hadronic decays |
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