Results 11 to 20 of about 776 (208)

BSM searches with (semi-)leptonic charm decays [PDF]

Proceedings of 11th International Workshop on the CKM Unitarity Triangle — PoS(CKM2021), 2023
Svjetlana Fajfer
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Alternative treatment of the quark mass in the heavy quark expansion

Journal of High Energy Physics, 2023
The treatment of the quark mass plays an important role when it comes to increasing the precision of the predictions of the heavy quark expansion for inclusive heavy hadron decays.
Anastasia Boushmelev, Thomas Mannel, K. Keri Vos   +2 more
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First extraction of inclusive V cb from q 2 moments

Journal of High Energy Physics, 2022
We present the first determination of V cb from inclusive B → X c ℓ v ¯ ℓ $$ B\to {X}_c \ell {\overline{v}}_{\ell} $$ using moments of the dilepton invariant mass, q 2.
Florian Bernlochner, Matteo Fael, Kevin Olschewsky, Eric Persson, Raynette van Tonder, K. Keri Vos, Maximilian Welsch   +6 more
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Form Factors for semi-leptonic $B$ decays [PDF]

Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016), 2017
13 pages, 2 tables, 6 figures, presented at the 34th annual International Symposium on Lattice Field Theory (Lattice2016), 24-30 July 2016, University of Southampton ...
Flynn, Jonathan, Izubuchi, Taku, Juttner, Andreas, Kawanai, Taichi, Lehner, Christoph, Lizarazo, Edwin, Soni, Amarjit, Tsang, Justus Tobias, Witzel, Oliver   +8 more
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Study of the b → dℓℓ transitions in the Standard Model and test of New Physics sensitivities

Journal of High Energy Physics, 2023
After incorporating all the available experimental data and the most up-to-date Lattice and light cone sum rule (LCSR) inputs on the form factors, we analyze the exclusive b → uℓν ℓ and b → dℓℓ decays simultaneously.
Aritra Biswas, Soumitra Nandi, Sunando Kumar Patra, Ipsita Ray   +3 more
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B → D 0 ∗ $$ B\to {D}_0^{\ast } $$ and B s → D s 0 ∗ $$ {B}_s\to {D}_{s0}^{\ast } $$ form factors from QCD light-cone sum rules

Journal of High Energy Physics, 2023
We present the first application of QCD light-cone sum rules (LCSRs) with B (s)-meson distribution amplitudes to the B s → D s 0 ∗ $$ {B}_{(s)}\to {D}_{(s)0}^{\ast } $$ form factors, where D s 0 ∗ $$ {D}_{(s)0}^{\ast } $$ is a charmed scalar meson.
Nico Gubernari, Alexander Khodjamirian, Rusa Mandal, Thomas Mannel   +3 more
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B → D1(2420) and B → D 1 ′ $$ {\mathrm{D}}_1^{\prime } $$ (2430) form factors from QCD light-cone sum rules

Journal of High Energy Physics, 2022
We perform the first calculation of form factors in the semileptonic decays B → D 1(2420)ℓν ℓ and B → D 1 ′ $$ {D}_1^{\prime } $$ (2430)ℓν ℓ using QCD light-cone sum rules (LCSRs) with B-meson distribution amplitudes. In this calculation the c-quark mass
Nico Gubernari, Alexander Khodjamirian, Rusa Mandal, Thomas Mannel   +3 more
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Quark-hadron duality at work: lifetimes of bottom baryons

Journal of High Energy Physics, 2023
In the 1990s, very low experimental values for the lifetime ratio τ(Λ b )/τ(B d ) triggered a considerable amount of doubt in the applicability of the heavy quark expansion (HQE), which is based on the assumption of quark-hadron duality (QHD) for ...
James Gratrex, Alexander Lenz, Blaženka Melić, Ivan Nišandžić, Maria Laura Piscopo, Aleksey V. Rusov   +5 more
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Revisiting inclusive decay widths of charmed mesons

Journal of High Energy Physics, 2022
Determining for the first time the Darwin operator contribution for the non-leptonic charm-quark decays and using new non-perturbative results for the matrix elements of ∆C = 0 four-quark operators, including eye-contractions, we present a comprehensive ...
Daniel King, Alexander Lenz, Maria Laura Piscopo, Thomas Rauh, Aleksey V. Rusov, Christos Vlahos   +5 more
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D- and B-meson semi-leptonic decays [PDF]

Nuclear Physics B - Proceedings Supplements, 1994
Recent results for semi-leptonic decays of $D$ and $B$ mesons at $ =6.4$, using the Wilson action, and at $ =6.0$, using the Clover action, are reported.
Abada, A, Allton, C, Bartoloni, A, Battista, C, Boucard, P, Cabasino, S, Cabibbo, N, Carpenter, D, Crisafulli, M, Güsken, S, Hernandez, P, Lubicz, V, Martinelli, G, Marzano, F, Paolucci, P, Pech, J, Pene, O, RAPUANO, FEDERICO, Sachrajda, C, Sarno, R, Schilling, K, Siegert, G, Stella, N, Todesco, G, Torelli, M, Tross, W, Vicini, P, Vladikas, A.   +27 more
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