Journal article
First experimental study of photon polarization in radiative B0s decays.
- Abstract:
- The polarization of photons produced in radiative B_{s}^{0} decays is studied for the first time. The data are recorded by the LHCb experiment in pp collisions corresponding to an integrated luminosity of 3 fb^{-1} at center-of-mass energies of 7 and 8 TeV. A time-dependent analysis of the B_{s}^{0}→ϕγ decay rate is conducted to determine the parameter A^{Δ}, which is related to the ratio of right- over left-handed photon polarization amplitudes in b→sγ transitions. A value of A^{Δ}=-0.98_{-0.52}^{+0.46}_{-0.20}^{+0.23} is measured. This result is consistent with the standard model prediction within 2 standard deviations.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 315.0KB, Terms of use)
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- Publisher copy:
- 10.1103/physrevlett.118.021801
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review Letters More from this journal
- Volume:
- 118
- Issue:
- 2
- Pages:
- 021801
- Publication date:
- 2017-01-01
- Acceptance date:
- 2016-12-15
- DOI:
- EISSN:
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1079-7114
- ISSN:
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0031-9007
- Pmid:
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28128619
- Language:
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English
- Keywords:
- Pubs id:
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pubs:641922
- UUID:
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uuid:ab83ef11-94bd-4045-b5ff-6918c5fc48e0
- Local pid:
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pubs:641922
- Source identifiers:
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641922
- Deposit date:
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2017-11-03
Terms of use
- Copyright holder:
- CERN, for the LHCb Collaboration
- Copyright date:
- 2017
- Notes:
- © 2017 CERN, for the LHCb Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
- Licence:
- CC Attribution (CC BY)
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