Branching fraction of the decay B+ → π+τ+τ− and lepton flavor universality test via the ratio Rπ(τ/μ)

Autor: Ahmed Ali, Alexander Ya. Parkhomenko, Irina M. Parnova

Publikováno v: Physics Letters B, Vol 842, Iss , Pp 137961- (2023)

Among (semi)leptonic rare B-decays induced by the b→d flavor changing neutral current, the decay B+→π+μ+μ− is the only one observed so far experimentally. Related decays involving the e+e− and τ+τ− pairs are the targets for the ongoing

Externí odkaz: https://doaj.org/article/2ab2480137ac420cb6f9d8eb606a89a4

D * Polarization as an Additional Constraint on New Physics in the b → cτ ν ¯ τ Transition

Autor: Mikhail A. Ivanov, Jürgen G. Körner, Pietro Santorelli, Chien-Thang Tran

Publikováno v: Particles, Vol 3, Iss 1, Pp 193-207 (2020)

Measurements of the branching fractions of the semileptonic decays B → D ( * ) τ ν ¯ τ and B c → J / ψ τ ν ¯ τ systematically exceed the Standard Model predictions, pointing to possible signals of new physics that can

Externí odkaz: https://doaj.org/article/a4637ef62da54557a8e1c1b6fb3e4406

The last unknown leading order low-energy constant of chiral perturbation theory

Autor: Bertilsson, Magnus

Externí odkaz: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-524577

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Search for the lepton-flavour violating decays B$^{0}$→ K$^{*0}$μ$^{±}$e$^{∓}$ and $ {B}_s^0 $→ ϕμ$^{±}$e$^{∓}$

Autor: Aaij, R, Abdelmotteleb, A.S. W, Abellan Beteta, C, Abudinén, F, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Agapopoulou, C, Aidala, C.A, Aiola, S, Ajaltouni, Z, Akar, S, Akiba, K, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alvarez Cartelle, P, Amato, S, Amey, J.L, Amhis, Y, An, L, Anderlini, L, Andersson, M, Andreianov, A, Andreotti, M, Andreou, D, Ao, D, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, J.J, Bailly-Reyre, A, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista de Souza Leite, J, Barbetti, M, Barlow, R.J, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, J.M, Bassi, G, Batsukh, B, Battig, A, Bay, A, Beck, A, Becker, M, Bedeschi, F, Bediaga, I.B, Beiter, A, Belavin, V, Belin, S, Bellee, V, Belous, K, Belov, I, Belyaev, I, Bencivenni, G, Ben-Haim, E, Berezhnoy, A, Bernet, R, Berninghoff, D, Bernstein, H.C, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, Ia, Bhasin, S, Bhom, J, Bian, L, Bieker, M.S, Biesuz, N.V, Bifani, S, Billoir, P, Biolchini, A, Birch, M, Bishop, F.C. 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Publikováno v: JHEP
JHEP, 2023, 06, pp.073. ⟨10.1007/JHEP06(2023)073⟩

International audience; A search for the lepton-flavour violating decays B$^{0}$ → K$^{*0}$μ$^{±}$e$^{∓}$ and $ {B}_s^0 $→ ϕμ$^{±}$e$^{∓}$ is presented, using proton-proton collision data collected by the LHCb detector at the LHC, corres

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::cb47d747a03349fb2963987780f0a194
https://hal.science/hal-04132485