Zobrazeno 1 - 10
of 1 206
pro vyhledávání: '"José, A. San"'
Estimating decay parameters in lattice simulations is a computationally demanding problem, requiring several volumes and momenta. We explore an alternative approach, where the transition amplitude can be extracted from the spectral decomposition of p
Externí odkaz:
http://arxiv.org/abs/2411.10123
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
The formalism of short-distance factorization, conveyed through the pseudo-distribution approach, connects space-like and light-cone correlators and thus allows for the extraction in lattice QCD of a number of parton distributions. We compute the $t$
Externí odkaz:
http://arxiv.org/abs/2409.03609
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
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:
José, Teseo San, Wittig, Hartmut, Cè, Marco, Gérardin, Antoine, von Hippel, Georg, Meyer, Harvey B., Miura, Kohtaroh, Ottnad, Konstantin, Risch, Andreas, Wilhelm, Jonas
Publikováno v:
PoS(LATTICE2022)328
We present results for the hadronic running of the electromagnetic coupling and the weak mixing angle from simulations of lattice QCD with $N_f=2+1$ flavours of $O(a)$-improved Wilson fermions. Using two different discretisations of the vector curren
Externí odkaz:
http://arxiv.org/abs/2212.02366
Autor:
Cè, Marco, Gérardin, Antoine, von Hippel, Georg, Hudspith, Renwick J., Kuberski, Simon, Meyer, Harvey B., Miura, Kohtaroh, Mohler, Daniel, Ottnad, Konstantin, Paul, Srijit, Risch, Andreas, José, Teseo San, Wittig, Hartmut
Following the publication of the new measurement of the anomalous magnetic moment of the muon, the discrepancy between experiment and the theory prediction from the $g-2$ theory initiative has increased to $4.2\,\sigma$. Recent lattice QCD calculatio
Externí odkaz:
http://arxiv.org/abs/2211.17083
Autor:
Cè, Marco, Gérardin, Antoine, von Hippel, Georg, Meyer, Harvey B., Miura, Kohtaroh, Ottnad, Konstantin, Risch, Andreas, José, Teseo San, Wittig, Hartmut
Publikováno v:
PoS(ICHEP2022)823
The energy dependency (running) of the strength of electromagnetic interactions $\alpha$ plays an important role in precision tests of the Standard Model. The running of the former to the $Z$ pole is an input quantity for global electroweak fits, whi
Externí odkaz:
http://arxiv.org/abs/2211.11401
Autor:
Víctor Revilla-Cuesta, Javier Manso-Morato, Nerea Hurtado-Alonso, Amaia Santamaría, José T. San-José
Publikováno v:
Case Studies in Construction Materials, Vol 20, Iss , Pp e03334- (2024)
Analyzing and validating the behavior of sustainable concrete mixes under near-realistic conditions is essential to advance their use. In this research, full-scale high-workability concretes, 0.5 m3 in volume, containing maximum amounts of sustainabl
Externí odkaz:
https://doaj.org/article/db6d149160b4482bb88de5f60a5ae5ea
