A precise measurement of the average b hadron lifetime
An improved measurement of the average b hadron lifetime is performed using a sample of 1.5 million hadronic Z decays, collected during the 1991–1993 runs of ALEPH, with the silicon vertex detector fully operational. This uses the three-dimensional impact parameter distribution of lepton tracks comi...
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| Main Authors: | , |
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| Format: | text |
| Language: | English |
| Published: |
Institutional Knowledge at Singapore Management University
1996
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| Subjects: | |
| Online Access: | https://ink.library.smu.edu.sg/sis_research/5831 https://ink.library.smu.edu.sg/context/sis_research/article/6834/viewcontent/A_precise_measurement_of_the_average_b_hadron_lifetime.pdf |
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| Institution: | Singapore Management University |
| Language: | English |
| Summary: | An improved measurement of the average b hadron lifetime is performed using a sample of 1.5 million hadronic Z decays, collected during the 1991–1993 runs of ALEPH, with the silicon vertex detector fully operational. This uses the three-dimensional impact parameter distribution of lepton tracks coming from semileptonic b decays and yields an average b hadron lifetime of 1.533 ± 0.013 ± 0.022 ps. |
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