Zobrazeno 1 - 10
of 8 461
pro vyhledávání: '"MARTINELLI G"'
We extend the Standard Model (SM) analysis of Ref. [1], which was limited to light leptons in the final state, to the semileptonic $B \to D^* \tau \nu_\tau$ decay. By using quantities that can be analised without the knowledge of $\vert V_{cb}\vert$,
Externí odkaz:
http://arxiv.org/abs/2410.17974
We present a new, simple approach to the study of semileptonic $B \to D^* \ell \nu_\ell$ decays based on the angular distributions of the final state particles only. Our approach is model independent and never requires the knowledge of $\vert V_{cb}\
Externí odkaz:
http://arxiv.org/abs/2409.10492
Autor:
Betti, F., Bona, M., Ciuchini, M., Derkach, D., Di Palma, R., Kagan, A. L., Lubicz, V., Martinelli, G., Pierini, M., Silvestrini, L., Tarantino, C., Vagnoni, V.
We present an updated global analysis of beauty decays sensitive to the angle $\gamma$ of the Cabibbo-Kobayashi-Maskawa matrix and of $D$-meson mixing data in the framework of approximate universality for charm mixing. We extract the fundamental theo
Externí odkaz:
http://arxiv.org/abs/2409.06449
Autor:
Frezzotti, R., Gagliardi, G., Lubicz, V., Martinelli, G., Sachrajda, C. T., Sanfilippo, F., Simula, S., Tantalo, N.
We determine, by means of lattice QCD calculations, the local form factors describing the $B_{s}\to \mu^{+}\mu^{-}\gamma$ decay. For this analysis we make use of the gauge configurations produced by the ETM Collaboration with $N_{f}=2+1+1$ flavour of
Externí odkaz:
http://arxiv.org/abs/2402.03262
We present an updated determination of the values of $\vert V_{cb} \vert$, $R(D^*)$ and $\vert V_{ub} \vert/\vert V_{cb} \vert$ based on the new data on semileptonic $B \to D^* \ell \nu_\ell$ decays by the Belle and Belle-II Collaborations and on the
Externí odkaz:
http://arxiv.org/abs/2310.03680
Autor:
Frezzotti, R., Gagliardi, G., Lubicz, V., Martinelli, G., Mazzetti, F., Sachrajda, C. T., Sanfilippo, F., Simula, S., Tantalo, N.
We compute the structure-dependent axial and vector form factors for the radiative leptonic decays $D_s\to \ell\nu_\ell\gamma$, where $\ell$ is a charged lepton, as functions of the energy of the photon in the rest frame of the $D_s$ meson. The compu
Externí odkaz:
http://arxiv.org/abs/2306.05904
We present the results of the application of the Dispersion Matrix approach to semileptonic heavy-to-heavy and heavy-to-light $B$-meson decays. This method allows to determine the hadronic form factors in a non-perturbative and model-independent way.
Externí odkaz:
http://arxiv.org/abs/2211.15131
Agglomeration-based strategies are important both within adaptive refinement algorithms and to construct scalable multilevel algebraic solvers. In order to automatically perform agglomeration of polygonal grids, we propose the use of Machine Learning
Externí odkaz:
http://arxiv.org/abs/2210.17457
We present the results of the application of the Dispersion Matrix approach to exclusive semileptonic $B$-meson decays. This method allows to determine the hadronic form factors in a non-perturbative and completely model-independent way. Starting fro
Externí odkaz:
http://arxiv.org/abs/2209.15413
In addition to the well-known $B \to D^{(*)} \ell \nu_\ell$ decays, semileptonic $B_s \to D_s^{(*)} \ell \nu_\ell$ processes offer the possibility to determine the Cabibbo-Kobayashi-Maskawa (CKM) matrix element $\vert V_{cb}\vert$. We implement the D
Externí odkaz:
http://arxiv.org/abs/2204.05925