| Thème(s) : |
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Physique/Physique des Hautes Energies - Phénoménologie
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| Titre : |
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Model Independent Tests for Time Reversal and CP Violations and for CPT Theorem in \Lambda_b and \bar\Lambda_b Two Body Decays |
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| Auteur : |
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E. Di Salvo, Z. J. Ajaltouni1 |
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| Laboratoire : |
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| Résumé : |
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Weak decays of beauty baryons like \Lambda_b (\bar\Lambda_b) into \Lambda (\bar\Lambda) and V (J^P = 1^-), where both decay products are polarized, offer interesting opportunities to perform tests of time reversal and CP violations and of CPT invariance. We propose a model independent parametrization of the angular distribution and of the polarization of the final resonances, by means of the spin density matrix. The transverse component of the polarization is sensitive to time reversal violations, moreover CP-and CPT-sensitive observables are defined. |
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| Collaboration/Projet : |
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LHCb |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication
ou d'écriture : |
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2009 |
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| Nom du périodique : |
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| Modern Physics Letters A (Mod. Phys. Lett. A) |
| Publisher |
World Scientific Publishing |
| ISSN |
0217-7323 (eISSN : 0217-7323) |
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| Volume : |
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24 |
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| Page/Article : |
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109-121 p. |
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| Identifiant local : |
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PCCF RI 0802 |
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| Classification PACS : |
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11.30.Er, 12.39.-x, 12.39.ki, 13.30.-a, 14.20.Mr |
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| Commentaire : |
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14 pages, submitted to Modern Physics Letters A |
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| Mot(s)-clé(s) : |
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time reversal |
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