Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Javier Ugarrio"'
Autor:
Alpha Collaboration, Andrea Bussone, Alessandro Conigli, Julien Frison, Gregorio Herdoíza, Carlos Pena, David Preti, Alejandro Sáez, Javier Ugarrio
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 5, Pp 1-27 (2024)
Abstract We present our first set of results for charm physics, using the mixed-action setup introduced in a companion paper [1]. Maximally twisted Wilson valence fermions are used on a sea of non-perturbatively O(a)-improved Wilson fermions, made up
Externí odkaz:
https://doaj.org/article/9e1dce2fea1c42c99552edfd82b4e5a2
Autor:
Alessandro Conigli, Julien Frison, Gregorio Herdoiza, Carlos Pena, Alejandro Saez, Javier Ugarrio
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97bdc681187357f8a1227822499293fb
http://arxiv.org/abs/2212.11045
http://arxiv.org/abs/2212.11045
Autor:
Alessandro Conigli, Andrea Bussone, Julien Frison\\', Gregorio Herdoiza, Carlos Pena, David Preti, Jose Angel Romero, Javier Ugarrio
Publikováno v:
Proceedings of The 38th International Symposium on Lattice Field Theory — PoS(LATTICE2021).
We report on our ongoing determination of the charm quark mass and the masses and decay constants of various charmed mesons, obtained within a mixed-action setup. We employ $N_f=2+1$ CLS ensembles combined with a Wilson twisted mass valence action th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d94704c02e981f9b5b09d8090423a19
https://doi.org/10.22323/1.396.0091
https://doi.org/10.22323/1.396.0091
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3beb3af3ee59abf512bc47f42181d960
http://arxiv.org/abs/1903.00286
http://arxiv.org/abs/1903.00286
Publikováno v:
Proceedings of 37th International Symposium on Lattice Field Theory — PoS(LATTICE2019)
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f0c9efeda637ec3fd12e41b47173147
Publikováno v:
INSPIRE-HEP
Scopus-Elsevier
Scopus-Elsevier
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e79e00b3d512399b01d23aad8e8f5dc
http://arxiv.org/abs/1812.05458
http://arxiv.org/abs/1812.05458
Autor:
Gregorio Herdoiza, David Preti, Sergio Chaves, José Romero, Javier Ugarrio, Andrea Bussone, Carlos Pena
Publikováno v:
Scopus-Elsevier
We introduce a mixed-action approach based on CLS ensembles, where a valence $N_f$=2+1+1 Twisted Mass QCD action is combined with the $N_f$=2+1 non-perturbatively O$(a)$-improved Wilson sea sector. We show that for maximally twisted valence quarks, t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e7283080a504d4e738805d03f287f07
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 ${\rm O}(a)$ improved Wilson fermions, while a fully-twisted tmQCD action is used for valence quarks. In this setup, automatic ${\rm O}(a)$ improvement is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55cfc8070a9aaabb2b745ca243d6501b
https://doi.org/10.1051/epjconf/201817513018
https://doi.org/10.1051/epjconf/201817513018