Branching fraction measurement for the decayB0s ! and search for the decay B0s! at high energy e+e_ collisions at energy
| dc.contributor.author | Dutta, Deepanwita | |
| dc.date.accessioned | 2015-09-23T07:18:26Z | |
| dc.date.accessioned | 2023-10-26T09:57:08Z | |
| dc.date.available | 2015-09-23T07:18:26Z | |
| dc.date.available | 2023-10-26T09:57:08Z | |
| dc.date.issued | 2014 | |
| dc.description | Supervisor: Bipul Bhuyan | en_US |
| dc.description.abstract | We measure the branching fraction for the decay B0 s and search for the decay B0 s using 121.4 fb of data collected at the resonance with the Belle detector at the KEKB asymmetric energy B-factory located at the High Energy Accelerator Research Organization (KEK), Japan. B0 s branching fraction is computed to be (3.7+0.6 0.7) स 10 with a signal significance of 10.6 including the systematic uncertainties. This result is in good agreement with the theoretical predictions and a recent indirect estimate from LHCb. We do not observe any significant signal for the B0 s and have thus set the 90% confidence level upper limit on its branching fraction to be 3.1 This result improves on the previously published 90% confidence level upper limit by a factor of about 3 and provides the most stringent limit till date. | en_US |
| dc.identifier.other | ROLL NO.09612105 | |
| dc.identifier.uri | https://gyan.iitg.ac.in/handle/123456789/537 | |
| dc.language.iso | en | en_US |
| dc.relation.ispartofseries | TH-1327; | |
| dc.subject | PHYSICS | en_US |
| dc.title | Branching fraction measurement for the decayB0s ! and search for the decay B0s! at high energy e+e_ collisions at energy | en_US |
| dc.type | Thesis | en_US |