A MEASUREMENT OF THE MEAN LIFETIMES OF CHARGED AND NEUTRAL B-HADRONS
The decays of B-hadrons have been reconstructed using the charged particles recorded in the DELPHI silicon microstrip detector. The sum of the charges of the secondaries determines the charge of the B-hadron parent. Some 232 114 multihadronic Z0 decays recorded during the 1991 run of LEP at centre-o...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
1993
|
| _version_ | 1826300689963286528 |
|---|---|
| author | Abreu, P Adam, W Adye, T Agasi, E Ajinenko, I Aleksan, R Alekseev, G Algeri, A Allen, P Almehed, S 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, S 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 | The decays of B-hadrons have been reconstructed using the charged particles recorded in the DELPHI silicon microstrip detector. The sum of the charges of the secondaries determines the charge of the B-hadron parent. Some 232 114 multihadronic Z0 decays recorded during the 1991 run of LEP at centre-of-mass energies between 88.2 GeV and 94.2 GeV yield 253 B-hadron candidates with well-measured charge. From these the mean lifetimes of neutral and charged B-hadrons are found to be 1.44 ± 0.21 (stat.) ± 0.14(syst.) ps and 1.56 ± 0.19(stat.) ± 0.13(syst.) ps respectively. The ratio of their lifetimes is 1.09+0.28-0.23(stat.) ± 0.11 (syst.). Under some assumptions on the abundance and lifetime of the Λ0b and B0s states, the B0 and B+ lifetimes are inferred. |
| first_indexed | 2024-03-07T05:20:59Z |
| format | Journal article |
| id | oxford-uuid:dee46a02-1d33-463f-955b-fcc87fe7dba4 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:20:59Z |
| publishDate | 1993 |
| record_format | dspace |
| spelling | oxford-uuid:dee46a02-1d33-463f-955b-fcc87fe7dba42022-03-27T09:35:30ZA MEASUREMENT OF THE MEAN LIFETIMES OF CHARGED AND NEUTRAL B-HADRONSJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:dee46a02-1d33-463f-955b-fcc87fe7dba4EnglishSymplectic Elements at Oxford1993Abreu, PAdam, WAdye, TAgasi, EAjinenko, IAleksan, RAlekseev, GAlgeri, AAllen, PAlmehed, SAlvsvaag, SAmaldi, UAndreazza, AAntilogus, PApel, WApsimon, RArnoud, YAsman, BAugustin, JAugustinus, ABaillon, PBambade, PBarao, FBarate, RBarbiellini, GThe decays of B-hadrons have been reconstructed using the charged particles recorded in the DELPHI silicon microstrip detector. The sum of the charges of the secondaries determines the charge of the B-hadron parent. Some 232 114 multihadronic Z0 decays recorded during the 1991 run of LEP at centre-of-mass energies between 88.2 GeV and 94.2 GeV yield 253 B-hadron candidates with well-measured charge. From these the mean lifetimes of neutral and charged B-hadrons are found to be 1.44 ± 0.21 (stat.) ± 0.14(syst.) ps and 1.56 ± 0.19(stat.) ± 0.13(syst.) ps respectively. The ratio of their lifetimes is 1.09+0.28-0.23(stat.) ± 0.11 (syst.). Under some assumptions on the abundance and lifetime of the Λ0b and B0s states, the B0 and B+ lifetimes are inferred. |
| spellingShingle | Abreu, P Adam, W Adye, T Agasi, E Ajinenko, I Aleksan, R Alekseev, G Algeri, A Allen, P Almehed, S 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 THE MEAN LIFETIMES OF CHARGED AND NEUTRAL B-HADRONS |
| title | A MEASUREMENT OF THE MEAN LIFETIMES OF CHARGED AND NEUTRAL B-HADRONS |
| title_full | A MEASUREMENT OF THE MEAN LIFETIMES OF CHARGED AND NEUTRAL B-HADRONS |
| title_fullStr | A MEASUREMENT OF THE MEAN LIFETIMES OF CHARGED AND NEUTRAL B-HADRONS |
| title_full_unstemmed | A MEASUREMENT OF THE MEAN LIFETIMES OF CHARGED AND NEUTRAL B-HADRONS |
| title_short | A MEASUREMENT OF THE MEAN LIFETIMES OF CHARGED AND NEUTRAL B-HADRONS |
| title_sort | measurement of the mean lifetimes of charged and neutral b hadrons |
| work_keys_str_mv | AT abreup ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT adamw ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT adyet ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT agasie ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT ajinenkoi ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT aleksanr ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT alekseevg ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT algeria ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT allenp ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT almeheds ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT alvsvaags ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT amaldiu ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT andreazzaa ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT antilogusp ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT apelw ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT apsimonr ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT arnoudy ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT asmanb ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT augustinj ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT augustinusa ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT baillonp ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT bambadep ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT baraof ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT barater ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT barbiellinig ameasurementofthemeanlifetimesofchargedandneutralbhadrons AT abreup measurementofthemeanlifetimesofchargedandneutralbhadrons AT adamw measurementofthemeanlifetimesofchargedandneutralbhadrons AT adyet measurementofthemeanlifetimesofchargedandneutralbhadrons AT agasie measurementofthemeanlifetimesofchargedandneutralbhadrons AT ajinenkoi measurementofthemeanlifetimesofchargedandneutralbhadrons AT aleksanr measurementofthemeanlifetimesofchargedandneutralbhadrons AT alekseevg measurementofthemeanlifetimesofchargedandneutralbhadrons AT algeria measurementofthemeanlifetimesofchargedandneutralbhadrons AT allenp measurementofthemeanlifetimesofchargedandneutralbhadrons AT almeheds measurementofthemeanlifetimesofchargedandneutralbhadrons AT alvsvaags measurementofthemeanlifetimesofchargedandneutralbhadrons AT amaldiu measurementofthemeanlifetimesofchargedandneutralbhadrons AT andreazzaa measurementofthemeanlifetimesofchargedandneutralbhadrons AT antilogusp measurementofthemeanlifetimesofchargedandneutralbhadrons AT apelw measurementofthemeanlifetimesofchargedandneutralbhadrons AT apsimonr measurementofthemeanlifetimesofchargedandneutralbhadrons AT arnoudy measurementofthemeanlifetimesofchargedandneutralbhadrons AT asmanb measurementofthemeanlifetimesofchargedandneutralbhadrons AT augustinj measurementofthemeanlifetimesofchargedandneutralbhadrons AT augustinusa measurementofthemeanlifetimesofchargedandneutralbhadrons AT baillonp measurementofthemeanlifetimesofchargedandneutralbhadrons AT bambadep measurementofthemeanlifetimesofchargedandneutralbhadrons AT baraof measurementofthemeanlifetimesofchargedandneutralbhadrons AT barater measurementofthemeanlifetimesofchargedandneutralbhadrons AT barbiellinig measurementofthemeanlifetimesofchargedandneutralbhadrons |