Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Herdoíza Gregorio"'
We perform the scale setting procedure of a mixed action setup consisting of valence Wilson twisted mass fermions at maximal twist on CLS ensembles with $N_f=2+1$ flavours of $O(a)$-improved Wilson sea quarks. We determine the gradient flow scale $t_
Externí odkaz:
http://arxiv.org/abs/2401.11546
Autor:
Conigli, Alessandro, Frison, Julien, Fritzsch, Patrick, Gérardin, Antoine, Heitger, Jochen, Herdoiza, Gregorio, Kuberski, Simon, Pena, Carlos, Simma, Hubert, Sommer, Rainer
In a somewhat forgotten paper [1] it was shown how to perform interpolations between relativistic and static computations in order to obtain results for heavy-light observables for masses from, say, $m_{\rm charm}$ to $m_{\rm bottom}$. All quantities
Externí odkaz:
http://arxiv.org/abs/2312.09811
Autor:
Conigli, Alessandro, Frison, Julien, Fritzsch, Patrick, Gérardin, Antoine, Heitger, Jochen, Herdoiza, Gregorio, Kuberski, Simon, Pena, Carlos, Simma, Hubert, Sommer, Rainer
We present preliminary results for B-physics from a combination of non-perturbative results in the static limit with relativistic computations satisfying $am_{\mathrm{heavy}}\ll 1$. Relativistic measurements are carried out at the physical b-quark ma
Externí odkaz:
http://arxiv.org/abs/2312.10017
Autor:
Bussone, Andrea, Conigli, Alessandro, Frison, Julien, Herdoíza, Gregorio, Pena, Carlos, Preti, David, Sáez, Alejandro, Ugarrio, Javier
We present our first set of results for charm physics, using the mixed-action setup introduced in a companion paper. Maximally twisted Wilson valence fermions are used on a sea of non-perturbatively $O(a)$-improved Wilson fermions, made up by CLS $N_
Externí odkaz:
http://arxiv.org/abs/2309.14154
Publikováno v:
EPJ Web of Conferences, Vol 175, p 13018 (2018)
We discuss a mixed-action approach in which sea quarks are regularised using non-perturbatively O(a) improved Wilson fermions, while a fully-twisted tmQCD action is used for valence quarks. In this setup, automatic O(a) improvement is preserved for v
Externí odkaz:
https://doaj.org/article/f187ef92f2c643e78660ad34bd7f1961
Autor:
Conigli, Alessandro, Frison, Julien, Herdoíza, Gregorio, Pena, Carlos, Sáez, Alejandro, Ugarrio, Javier
We report on our first set of results for charm physics, using a mixed-action setup with maximally twisted valence fermions on CLS $N_f=2+1$ ensembles. This setup avoids the need of improvement coefficients to subtract $O(am_c)$ effects. The charm qu
Externí odkaz:
http://arxiv.org/abs/2212.11045
Our charm program uses a mixed action with twisted-mass valence quarks over non-perturbatively improved Wilson sea quarks, in order to study various quantities in a relativistic and manifestly local framework of full QCD. The sea sector consists of $
Externí odkaz:
http://arxiv.org/abs/2112.03047
Autor:
Frison, Julien, Bussone, Andrea, Herdoíza, Gregorio, Pena, Carlos, Romero, Jose Ángel, Ugarrio, Javier
The first phase of a heavy quark program based on twisted mass valence quarks has been presented at last years's lattice conference. The CLS $N_f=2+1$ ensembles were used for their fine lattice spacing, while twisting the masses is expected to reduce
Externí odkaz:
http://arxiv.org/abs/1911.02412
Autor:
Bussone, Andrea, Herdoíza, Gregorio, Pena, Carlos, Preti, David, Romero, José Ángel, Ugarrio, Javier
A mixed action composed of valence quark flavours regularized with a fully-twisted tmQCD action and of $N_f=2+1$ flavours of non-perturbatively ${\rm O}(a)$-improved Wilson sea quarks is described. Two procedures for the matching of sea and valence q
Externí odkaz:
http://arxiv.org/abs/1903.00286
Autor:
Bussone, Andrea, Herdoíza, Gregorio, Pena, Carlos, Preti, David, Romero, José Ángel, Ugarrio, Javier
We present preliminary results in the charm sector from a mixed-action setup, in which CLS $N_f=2+1$ ensembles are combined with a Wilson twisted mass valence action. We study the continuum and chiral limits of charm quark observables such as the dec
Externí odkaz:
http://arxiv.org/abs/1812.05458