Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Helmes Christopher"'
Autor:
Coquard Laurent, Hummel Julian, Nordhardt Günter, Georgi Max, Havenith Andreas, Krycki Kai, Fu Bo, Helmes Christopher, Heidner Marcel, Simons Frederic, Köble Theo, Schumann Olaf
Publikováno v:
EPJ Nuclear Sciences & Technologies, Vol 9, p 5 (2023)
The nuclear and non-nuclear industry has produced a considerable amount of low and intermediate-level radioactive wastes during the last decades. The material characterization of waste packages recently became more and more important in order to disp
Externí odkaz:
https://doaj.org/article/629a8ed1fd964c70b0b7673188d8b688
Autor:
Helmes Christopher, Knippschild Bastian, Kostrzewa Bartosz, Liu Liuming, Jost Christian, Ottnad Konstantin, Urbach Carsten, Wenger Urs, Werner Markus
Publikováno v:
EPJ Web of Conferences, Vol 175, p 05025 (2018)
We present results for the η′ meson and the topological susceptibility in Nf = 2 flavour lattice QCD. The results are obtained using Wilson twisted mass fermions at maximal twist with pion masses ranging from 340 MeV down to the physical point. A
Externí odkaz:
https://doaj.org/article/50a64b02ef5f47589b7e81b29d950026
Autor:
Werner, Markus, Ueding, Martin, Helmes, Christopher, Jost, Christian, Knippschild, Bastian, Kostrzewa, Bartosz, Liu, Chuan, Liu, Liuming, Metsch, Bernard, Petschlies, Marcus, Urbach, Carsten
Publikováno v:
Eur.Phys.J.A 56 (2020) 2, 61
We present an investigation of the Rho-meson from Nf=2+1+1 flavour lattice QCD. The calculation is performed based on gauge configuration ensembles produced by the ETM collaboration with three lattice spacing values and pion masses ranging from 230 M
Externí odkaz:
http://arxiv.org/abs/1907.01237
Autor:
Helmes, Christopher, Jost, Christian, Knippschild, Bastian, Kostrzewa, Bartosz, Liu, Liuming, Pittler, Ferenc, Urbach, Carsten, Werner, Markus
We summarize our lattice QCD determinations of the pion-pion, pion-kaon and kaon-kaon s-wave scattering lengths at maximal isospin with a particular focus on the extrapolation to the physical point and the usage of next-to-leading order chiral pertur
Externí odkaz:
http://arxiv.org/abs/1904.00191
Autor:
Dimopoulos, Petros, Helmes, Christopher, Jost, Christian, Knippschild, Bastian, Kostrzewa, Bartosz, Liu, Liuming, Ottnad, Konstantin, Petschlies, Marcus, Urbach, Carsten, Wenger, Urs, Werner, Markus
Publikováno v:
Phys. Rev. D 99, 034511 (2019)
In this paper we explore the computation of topological susceptibility and $\eta'$ meson mass in $N_f=2$ flavor QCD using lattice techniques with physical value of the pion mass as well as larger pion mass values. We observe that the physical point c
Externí odkaz:
http://arxiv.org/abs/1812.08787
Autor:
Helmes, Christopher, Jost, Christian, Knippschild, Bastian, Kostrzewa, Bartosz, Liu, Liuming, Pittler, Ferenc, Urbach, Carsten, Werner, Markus
Publikováno v:
Phys. Rev. D 98, 114511 (2018)
In this paper we report on results for the s-wave scattering length of the $\pi$-$K$ system in the $I=3/2$ channel from $N_f=2+1+1$ Lattice QCD. The calculation is based on gauge configurations generated by the European Twisted Mass Collaboration wit
Externí odkaz:
http://arxiv.org/abs/1809.08886
Autor:
Helmes, Christopher, Knippschild, Bastian, Kostrzewa, Bartosz, Liu, Liuming, Jost, Christian, Ottnad, Konstantin, Urbach, Carsten, Wenger, Urs, Werner, Markus
We present results for the eta prime meson and the topological susceptibility in two flavour lattice QCD. The results are obtained using Wilson twisted mass fermions at maximal twist with pion masses ranging from 340 MeV down to the physical point. A
Externí odkaz:
http://arxiv.org/abs/1710.03698
Autor:
Helmes, Christopher, Jost, Christian, Knippschild, Bastian, Kostrzewa, Bartosz, Liu, Liuming, Urbach, Carsten, Werner, Markus
Publikováno v:
Phys. Rev. D 96, 034510 (2017)
We present results for the interaction of two kaons at maximal isospin. The calculation is based on $N_f=2+1+1$ flavour gauge configurations generated by the European Twisted Mass Collaboration with pion masses ranging from about $230$ to $450\,\text
Externí odkaz:
http://arxiv.org/abs/1703.04737
Autor:
Helmes, Christopher, Jost, Christian, Knippschild, Bastian, Kostrzewa, Bartosz, Liu, Liuming, Urbach, Carsten, Werner, Markus
We present results for the interaction of two kaons at maximal isospin. The calculation is based on 2+1+1 flavour gauge configurations generated by the ETM Collaboration (ETMC) featuring pion masses ranging from about 230 MeV to 450 MeV at three valu
Externí odkaz:
http://arxiv.org/abs/1611.09584
Autor:
Helmes, Christopher, Jost, Christian, Knippschild, Bastian, Liu, Liuming, Urbach, Carsten, Werner, Markus
Pi-Pi scattering is investigated for the first time for Nf=2+1+1 dynamical quark flavours using Wilson twisted mass fermions. L\"uscher's finite size method is used to relate energy shifts in finite volume to scattering quantities like the scattering
Externí odkaz:
http://arxiv.org/abs/1412.0408