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Search for Baryon-number violating Ξ_{b}^{0} oscillations
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LHCb Collaboration (Including: Back, J. J., Blake, Thomas, Costa Sobral, Cayo, Crocombe, Andrew, Gershon, T. J., Kreps, Michal, Latham, Thomas, Loh, David, Mathad, Abhijit , Millard, E., O'Hanlon, Daniel P., Poluektov, Anton, Qian, W., Wallace, Charlotte and Wicht, Jean). (2017) Search for Baryon-number violating Ξ_{b}^{0} oscillations. Physical Review Letters, 119 (18). 181807. doi:10.1103/PhysRevLett.119.181807 ISSN 0031-9007.
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Official URL: http://doi.org/10.1103/PhysRevLett.119.181807
Abstract
A search for baryon-number violating Ξ_{b}^{0} oscillations is performed with a sample of pp collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 3 fb^{-1}. The baryon number at the moment of production is identified by requiring that the Ξ_{b}^{0} come from the decay of a resonance Ξ_{b}^{*-}→Ξ_{b}^{0}π^{-} or Ξ_{b}^{'-}→Ξ_{b}^{0}π^{-}, and the baryon number at the moment of decay is identified from the final state using the decays Ξ_{b}^{0}→Ξ_{c}^{+}π^{-},Ξ_{c}^{+}→pK^{-}π^{+}. No evidence of baryon-number violation is found, and an upper limit at the 95% confidence level is set on the oscillation rate of ω<0.08 ps^{-1}, where ω is the associated angular frequency.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| SWORD Depositor: | Library Publications Router | ||||
| Journal or Publication Title: | Physical Review Letters | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 0031-9007 | ||||
| Official Date: | 3 November 2017 | ||||
| Dates: |
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| Volume: | 119 | ||||
| Number: | 18 | ||||
| Article Number: | 181807 | ||||
| DOI: | 10.1103/PhysRevLett.119.181807 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Reuse Statement (publisher, data, author rights): | ** From PubMed via Jisc Publications Router. ** History: received 22-08-2017. | ||||
| Access rights to Published version: | Open Access (Creative Commons) |
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