Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Blossier, Benoît"'
In this project, we employ the short-distance factorization to compute the distribution amplitude of the $\eta_c$-meson from Lattice QCD at leading twist. We employ a set of CLS $N_f=2$ ensembles at three lattice spacings and various quark masses to
Externí odkaz:
http://arxiv.org/abs/2409.12084
In this proceeding we determine the distribution amplitude of the $\eta_c$-meson from first principles. This quantity appears as a consequence of factorization theorems, and it is necessary to compute the amplitude of multiple exclusive processes. Si
Externí odkaz:
http://arxiv.org/abs/2406.12361
Publikováno v:
JHEP09(2024)079
Distribution amplitudes are functions of non-perturbative matrix elements describing the hadronization of quarks and gluons. Thanks to factorization theorems, they can be used to compute the scattering amplitude of high-energy processes. Recently, ne
Externí odkaz:
http://arxiv.org/abs/2406.04668
Autor:
Pérez, Miguel Teseo San José, Blossier, Benoît, Mangin-Brinet, Mariane, Chávez, José Manuel Morgado
We report on the first lattice determination of the pseudoscalar meson $\eta_c$ light-cone distribution amplitude, using a set of three CLS $N_f=2$ ensembles at a pion mass $m_{\pi} \sim 270~\text{MeV}$ and lattice spacings $a \sim 0.076~\text{fm}$,
Externí odkaz:
http://arxiv.org/abs/2311.09957
Our exploratory study looks for direct access to the resonant hadronic transition amplitude without resorting to the L\"uscher formalism. We study the decay $\Psi(3770)\to\bar{D}D$ by applying partially twisted boundary conditions to the quenched cha
Externí odkaz:
http://arxiv.org/abs/2212.11206
Autor:
Blossier, Benoît, Cahue, Pierre Henri, Heitger, Jochen, La Cesa, Simone, Neuendorf, Jan, Zafeiropoulos, Savvas
We report on a two-flavour lattice QCD determination of the $B_s\to D_s$ and $B_s\to D_s^*$ transitions, which in the heavy quark limit can be parameterised by the form factors $\mathcal{G}$, and $h_{\text A_1}$, $h_{\text A_2}$ and $h_{\text A_3}$.
Externí odkaz:
http://arxiv.org/abs/2111.05733
Autor:
Blossier, Benoît, Cahue, Pierre-Henri, Heitger, Jochen, LaCesa, Simone, Neuendorf, Jan, Zafeiropoulos, Savvas
Publikováno v:
Phys. Rev. D, volume 105, issue 5, 03.2022
We report on a two-flavour lattice QCD study of the $B_s \to D_s$ and $B_s \to D^*_s$ transitions parameterized, in the heavy quark limit, by the form factors ${\cal G}$, and $h_{A_1}$, $h_{A_2}$ and $h_{A_3}$, respectively. In the search for New Phy
Externí odkaz:
http://arxiv.org/abs/2110.10061
Publikováno v:
Eur. Phys. J C 80, 412 (2020)
We report on a two-flavor lattice QCD estimate of the $B_s$ and $B^*_s$ leptonic decays parameterized by the decay constants $f_{B_s}$ and $f_{B^*_s}$. In addition to their relevance for phenomenology, their extraction has allowed us to investigate w
Externí odkaz:
http://arxiv.org/abs/1912.09937
The phenomenology of leptonic decays of quarkonia holds many interesting features: for instance, it can establish constraints on scenarios beyond the Standard Model with the Higgs sector enriched by a light CP-odd state. In the following paper, we re
Externí odkaz:
http://arxiv.org/abs/1803.09673
Publikováno v:
Phys. Rev. D 98, 054506 (2018)
We report on a two-flavour lattice QCD study of the D_s and D_s^* leptonic decays parameterized by the decay constants f_{D_s} and f_{D_s^*}. As the phenomenology in the D_s sector seems very promising in the next years with the experiments LHCb and
Externí odkaz:
http://arxiv.org/abs/1803.03065