Academic Journal
Measurement of CP violation in B 0 → D + D − and B s 0 → D s + D s − decays
| العنوان: | Measurement of CP violation in B 0 → D + D − and B s 0 → D s + D s − decays |
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| المؤلفون: | Aaij, R, Abdelmotteleb, ASW, Abellan Beteta, C, Abudinén, F, Ackernley, T, Adefisoye, AA, Adeva, B, Adinolfi, M, Adlarson, P, Agapopoulou, C, Aidala, CA, Ajaltouni, Z, Akar, S, Akiba, K, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M, Aliouche, Z, Alvarez Cartelle, P, Amalric, R, Amato, S, Amey, JL, Amhis, Y, Bacher, D, Bovill, M, Cervenkov, D, Fischer, KL, Gao, R, Gilman, AL, Goncalves Abrantes, F, Harnew, N, John, M, Mackay, I, Malde, S, Martel, L, Mohammed, RA, Patoc, J, Resmi, PK, Scantlebury Smead, LG, Smallwood, JC, Stanislaus, S, Suljik, F, Tat, MD, Vico Benet, D, Wilkinson, G, Zhang, S |
| بيانات النشر: | Springer |
| سنة النشر: | 2025 |
| المجموعة: | Oxford University Research Archive (ORA) |
| الوصف: | A time-dependent, flavour-tagged measurement of CP violation is performed with B0→ D+D− and Bs0→Ds+Ds− decays, using data collected by the LHCb detector in proton-proton collisions at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 6 fb−1. In B0→ D+D− decays the CP-violation parameters are measured to beSD+D−=−0.552±0.100stat±0.010syst, CD+D−=0.128±0.103stat±0.010syst. In Bs0→Ds+Ds− decays the CP-violating parameter formulation in terms of ϕs and |λ| results inϕs=−0.086±0.106stat±0.028systrad, ∣λDs+Ds−∣=1.145±0.126stat±0.031syst. These results represent the most precise single measurement of the CP-violation parameters in their respective channels. For the first time in a single measurement, CP symmetry is observed to be violated in B0→ D+D− decays with a significance exceeding six standard deviations. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | https://doi.org/10.1007/jhep01(2025)061 |
| DOI: | 10.1007/jhep01(2025)061 |
| الاتاحة: | https://doi.org/10.1007/jhep01(2025)061 https://ora.ox.ac.uk/objects/uuid:2a35e94e-c8a0-434b-ac89-b12f8a379134 |
| Rights: | info:eu-repo/semantics/openAccess ; CC Attribution (CC BY) |
| رقم الانضمام: | edsbas.C57FB4C1 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1007/jhep01(2025)061 |
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