A search for baryon-number violating Ξ0b 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 Ξ0b come from the decay of a resonance Ξ*−b→Ξ0bπ− or Ξ'−b→Ξ0bπ−, and the baryon number at the moment of decay is identified from the final state using the decays Ξ0b→Ξ+cπ−,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.

Search for Baryon-Number Violating Ξb0 Oscillations / Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreotti, M., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 1079-7114. - 119:18(2017). [10.1103/PhysRevLett.119.181807]

Search for Baryon-Number Violating Ξb0 Oscillations

Capriotti, L.;Casse, G.;Kazeev, N.;Sarti, A.;Sciubba, A.;
2017

Abstract

A search for baryon-number violating Ξ0b 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 Ξ0b come from the decay of a resonance Ξ*−b→Ξ0bπ− or Ξ'−b→Ξ0bπ−, and the baryon number at the moment of decay is identified from the final state using the decays Ξ0b→Ξ+cπ−,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.
2017
hadron mixing, bottom baryons, experiments
01 Pubblicazione su rivista::01a Articolo in rivista
Search for Baryon-Number Violating Ξb0 Oscillations / Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreotti, M., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 1079-7114. - 119:18(2017). [10.1103/PhysRevLett.119.181807]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1074600
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