Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Stefan Sint"'
Autor:
Mattia Dalla Brida, Roman Höllwieser, Francesco Knechtli, Tomasz Korzec, Stefan Sint, Rainer Sommer
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 1, Pp 1-26 (2024)
Abstract With Wilson quarks, on-shell O(a) improvement of the lattice QCD action is achieved by including the Sheikholeslami-Wohlert term and two further operators of mass dimension 5, which amount to a mass-dependent rescaling of the bare parameters
Externí odkaz:
https://doaj.org/article/c76a25375cdd4d6eacfa94e69f4da4e4
Autor:
Mattia Dalla Brida, Roman Höllwieser, Francesco Knechtli, Tomasz Korzec, Alessandro Nada, Alberto Ramos, Stefan Sint, Rainer Sommer, ALPHA Collaboration
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 12, Pp 1-38 (2022)
Abstract We present the details and first results of a new strategy for the determination of $$\alpha _s(m_Z)$$ α s ( m Z ) (ALPHA Collaboration et al. in Phys. Lett. B 807:135571, 2020). By simultaneously decoupling 3 fictitious heavy quarks we est
Externí odkaz:
https://doaj.org/article/e99cc7e0dce945d2b3a66ae7be9100f8
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 1, Pp 1-27 (2019)
Abstract We determine the non-perturbatively renormalized axial current for $$\hbox {O}(a)$$ O(a) improved lattice QCD with Wilson quarks. Our strategy is based on the chirally rotated Schrödinger functional and can be generalized to other finite (r
Externí odkaz:
https://doaj.org/article/737e88d9268b404ea01afd4ef1f3431d
Autor:
Mattia Dalla Brida, Patrick Fritzsch, Tomasz Korzec, Alberto Ramos, Stefan Sint, Rainer Sommer
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 5, Pp 1-25 (2018)
Abstract Using continuum extrapolated lattice data we trace a family of running couplings in three-flavour QCD over a large range of scales from about 4 to 128 GeV. The scale is set by the finite space time volume so that recursive finite size techni
Externí odkaz:
https://doaj.org/article/850f716d496840fc93265765690aa79b
Publikováno v:
Journal of High Energy Physics, Vol 2016, Iss 8, Pp 1-53 (2016)
Abstract The chirally rotated Schrödinger functional (χSF) with massless Wilson-type fermions provides an alternative lattice regularization of the Schrödinger functional (SF), with different lattice symmetries and a common continuum limit expecte
Externí odkaz:
https://doaj.org/article/2cf428233cd64018a15c3f54fbb6cc13
Autor:
Tomasz Korzec, Mattia Dalla Brida, Roman Höllwieser, Francesco Knechtli, Alessandro Nada, Alberto Ramos, Stefan Sint, Rainer Sommer
Publikováno v:
Proceedings of The 39th International Symposium on Lattice Field Theory — PoS(LATTICE2022).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc99174471c1f237587c7418529998f3
https://doi.org/10.22323/1.430.0286
https://doi.org/10.22323/1.430.0286
Autor:
Nico Battelli, Stefan Sint
Publikováno v:
Proceedings of The 38th International Symposium on Lattice Field Theory — PoS(LATTICE2021).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a5632a105de54f79d82c59e72ac59a8
https://doi.org/10.22323/1.396.0437
https://doi.org/10.22323/1.396.0437
Autor:
Stefan Sint
Publikováno v:
Proceedings of alphas-2019: Workshop on precision measurements of the QCD coupling constant — PoS(ALPHAS2019).
The recent determination of αs(mZ) =0.11852(84)by the ALPHA collaboration [1] distinguishes itself by the very good control of perturbative truncation and other systematic errors. A variety of tools and methods had to be deployed to enable this resu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60fb86765fffd3d498e44437fa10132f
https://doi.org/10.22323/1.365.0022
https://doi.org/10.22323/1.365.0022
Autor:
Klaus Rabbertz, Sergey Alekhin, Siegfried Bethke, David D'Enterria, Stefan Sint, Stanley J. Brodsky, Andres Poldaru, Maarten Golterman, Ramon Miravitllas, Mattia Dalla Brida, Redamy Pérez Ramos, Fernando Barreiro Alonso, Peter Petreczky, Gábor Somogyi, Felix Ringer, Johann H. Kuhn, Andrii Verbytskyi, Stefano Camarda, Rainer Sommer, Hiromasa Takaura, Daniel Britzger, Santiago Peris, Joao Pires, J. Huston, Stefan Kluth, Nora Brambilla
Publikováno v:
PoS
Workshop on precision measurements of the QCD coupling constant
Workshop on precision measurements of the QCD coupling constant, Feb 2019, Trento, Italy. pp.026, ⟨10.22323/1.365.0026⟩
Workshop on precision measurements of the QCD coupling constant, Feb 2019, Trento, Italy. pp.150-154, ⟨10.22323/1.365.0026⟩
Workshop on precision measurements of the QCD coupling constant
Workshop on precision measurements of the QCD coupling constant, Feb 2019, Trento, Italy. pp.026, ⟨10.22323/1.365.0026⟩
Workshop on precision measurements of the QCD coupling constant, Feb 2019, Trento, Italy. pp.150-154, ⟨10.22323/1.365.0026⟩
International audience; A summary of the main points of discussion raised during the talks and their follow-up questions,as well as in the round table of the last day of the $α_s$ (2019) workshop, is presented. The discussions not only focused on pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee0310da2627f11df2a3bb76c8cb0afe
https://hal.archives-ouvertes.fr/hal-02340144
https://hal.archives-ouvertes.fr/hal-02340144
Publikováno v:
European Physical Journal
European Physical Journal C: Particles and Fields, Vol 79, Iss 1, Pp 1-27 (2019)
European Physical Journal C: Particles and Fields, Vol 79, Iss 1, Pp 1-27 (2019)
We determine the non-perturbatively renormalized axial current for O($a$) improved lattice QCD with Wilson quarks. Our strategy is based on the chirally rotated Schr\"odinger functional and can be generalized to other finite (ratios of) renormalizati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81ce3fdf217e915b84ff119dcc2e5afc
http://arxiv.org/abs/1808.09236
http://arxiv.org/abs/1808.09236