Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Martin Ueding"'
Autor:
Matthias Fischer, Bartosz Kostrzewa, Liuming Liu, Fernando Romero-López, Martin Ueding, Carsten Urbach
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 5, Pp 1-19 (2021)
Abstract We present the first direct $$N_f=2$$ N f = 2 lattice QCD computation of two- and three- $$\pi ^+$$ π + scattering quantities that includes an ensemble at the physical point. We study the quark mass dependence of the two-pion phase shift, a
Externí odkaz:
https://doaj.org/article/c3c09fdda7d6420c910cb006ed8b5629
Autor:
Matthias Fischer, Bartosz Kostrzewa, Maxim Mai, Marcus Petschlies, Ferenc Pittler, Martin Ueding, Carsten Urbach, Markus Werner
Publikováno v:
Physics Letters B, Vol 819, Iss , Pp 136449- (2021)
We present a lattice computation of ππ–scattering in the I=1 channel with Nf=2 dynamical quark flavours obtained with ensembles bracketing the physical value of the pion mass. Employing a global fit to data at three values of the pion mass, we de
Externí odkaz:
https://doaj.org/article/ba83dc6e1e3843c980f3d12a697b3f45
Autor:
Bartosz Kostrzewa, Martin Ueding, Giannis Koutsou, Constantia Alexandrou, Urs Wenger, Roberto Frezzotti, Francesco Sanfilippo, M. Garofalo, Jacob Finkenrath, Georg Bergner, Silvano Simula, Carsten Urbach, Simone Bacchio, P. Dimopoulos, P. Labus
Publikováno v:
Physical Review D. 104
We present a determination of the ratio of kaon and pion leptonic decay constants in isosymmetric QCD (ISOQCD), ${f}_{K}/{f}_{\ensuremath{\pi}}$, making use of the gauge ensembles produced by the Extended Twisted Mass Collaboration with ${N}_{f}=2+1+
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06f8bc61a1530245631e9bcfa0ebd614
https://doi.org/10.1103/physrevd.104.074520
https://doi.org/10.1103/physrevd.104.074520
Autor:
Marcus Petschlies, Maxim Mai, Matthias Fischer, Ferenc Pittler, Martin Ueding, Bartosz Kostrzewa, Carsten Urbach, Markus Werner
Publikováno v:
Physics Letters B, Vol 819, Iss, Pp 136449-(2021)
Physics Letters
Physics Letters
We present a lattice computation of ππ–scattering in the I=1 channel with Nf=2 dynamical quark flavours obtained with ensembles bracketing the physical value of the pion mass. Employing a global fit to data at three values of the pion mass, we de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::481a0aeb3baa99ee076a015f732b8e29
http://www.sciencedirect.com/science/article/pii/S0370269321003890
http://www.sciencedirect.com/science/article/pii/S0370269321003890
Autor:
Martin Ueding, Matthias Fischer, Liuming Liu, Carsten Urbach, Fernando Romero-López, Bartosz Kostrzewa
Publikováno v:
The European Physical Journal C. 81
We present the first direct $$N_f=2$$ N f = 2 lattice QCD computation of two- and three-$$\pi ^+$$ π + scattering quantities that includes an ensemble at the physical point. We study the quark mass dependence of the two-pion phase shift, and the thr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4366f3db46cb5fb630da5e39b7925b15
https://doi.org/10.1140/epjc/s10052-021-09206-5
https://doi.org/10.1140/epjc/s10052-021-09206-5
Autor:
Martin Ueding, Johann Ostmeyer, Carsten Urbach, Bartosz Kostrzewa, Konstantin Ottnad, Matthias Fischer
We discuss the relation of a variety of different methods to determine energy levels in lattice QCD simulations: the generalised eigenvalue, the Prony, the generalised pencil of function and the Gardner methods. All three former methods can be unders
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::637fad9233681b4e6b9e34629a0fcad6
http://arxiv.org/abs/2004.10472
http://arxiv.org/abs/2004.10472
Autor:
Martin Ueding, Christopher Helmes, Bartosz Kostrzewa, Markus Werner, Bernard Metsch, Christian Jost, Bastian Knippschild, Marcus Petschlies, Liuming Liu, Carsten Urbach, Chuan Liu
Publikováno v:
The European Physical Journal A. 56
We present a lattice QCD investigation of the $$\rho $$ρ-meson with $$N_\mathrm{{f}}=2+1+1$$Nf=2+1+1 dynamical quark flavours for the first time. The calculation is performed based on gauge configuration ensembles produced by the ETM Collaboration w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb3f04642fc42adb63ea49305ac73e85
https://doi.org/10.1140/epja/s10050-020-00057-4
https://doi.org/10.1140/epja/s10050-020-00057-4