Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Pittler, F."'
Autor:
Alexandrou, C., Bacchio, S., Bergner, G., Burri, S., Finkenrath, J., Gasbarro, A., Hadjiyiannakou, K., Jansen, K., Kanwar, G., Kostrzewa, B., Koutsou, G., Ottnad, K., Petschlies, M., Pittler, F., Steffens, F., Urbach, C., Wenger, U.
Publikováno v:
Phys.Rev.D 108 (2023) 9, 094514
The neutral pion generates the leading pole contribution to the hadronic light-by-light tensor, which is given in terms of the nonperturbative transition form factor $\mathcal{F}_{\pi^0\gamma\gamma}(q_1^2,q_2^2)$. Here we present an ab-initio lattice
Externí odkaz:
http://arxiv.org/abs/2308.12458
Autor:
Alexandrou, C., Bacchio, S., Bergner, G., Constantinou, M., Di Carlo, M., Dimopoulos, P., Finkenrath, J., Fiorenza, E., Frezzotti, R., Garofalo, M., Hadjiyiannakou, K., Kostrzewa, B., Koutsou, G., Jansen, K., Lubicz, V., Mangin-Brinet, M., Manigrasso, F., Martinelli, G., Pittler, F., Rossi, G. C., Sanfilippo, F., Simula, S., Tarantino, C., Todaro, A., Urbach, C., Wenger, U.
We present results for the light, strange and charm quark masses using $N_f=2+1+1$ twisted mass fermion ensembles at three values of the lattice spacing, including two ensembles simulated with the physical value of the pion mass. The analysis is done
Externí odkaz:
http://arxiv.org/abs/2110.04588
Autor:
Alexandrou, C., Bacchio, S., Bergner, G., Constantinou, M., Di Carlo, M., Dimopoulos, P., Finkenrath, J., Fiorenza, E., Frezzotti, R., Garofalo, M., Hadjiyiannakou, K., Kostrzewa, B., Koutsou, G., Jansen, K., Lubicz, V., Mangin-Brinet, M., Manigrasso, F., Martinelli, G., Papadiofantous, E., Pittler, F., Rossi, G. C., Sanfilippo, F., Simula, S., Tarantino, C., Todaro, A., Urbach, C., Wenger, U.
We present a calculation of the up, down, strange and charm quark masses performed within the lattice QCD framework. We use the twisted mass fermion action and carry out simulations that include in the sea two light mass-degenerate quarks, as well as
Externí odkaz:
http://arxiv.org/abs/2104.13408
Autor:
Bruckmann, F., Endrodi, G., Giordano, M., Katz, S. D., Kovacs, T. G., Pittler, F., Wellnhofer, J.
Publikováno v:
Phys. Rev. D 96, 074506 (2017)
We present first evidence for the Landau level structure of Dirac eigenmodes in full QCD for nonzero background magnetic fields, based on first principles lattice simulations using staggered quarks. Our approach involves the identification of the low
Externí odkaz:
http://arxiv.org/abs/1705.10210
Autor:
Borsanyi, Sz., Fodor, Z., Kampert, K. H., Katz, S. D., Kawanai, T., Kovacs, T. G., Mages, S. W., Pasztor, A., Pittler, F., Redondo, J., Ringwald, A., Szabo, K. K.
We present a full result for the equation of state (EoS) in 2+1+1 (up/down, strange and charm quarks are present) flavour lattice QCD. We extend this analysis and give the equation of state in 2+1+1+1 flavour QCD. In order to describe the evolution o
Externí odkaz:
http://arxiv.org/abs/1606.07494
Autor:
Borsanyi, Sz., Krieg, Z. Fodor S. D. Katz S., Lippert, T., Nogradi, D., Pittler, F., Szabo, K. K., Toth, B. C.
We study the finite temperature transition in QCD with two flavors of dynamical fermions at a pseudoscalar pion mass of about 350 MeV. We use lattices with temporal extent of $N_t$=8, 10 and 12. For the first time in the literature a continuum limit
Externí odkaz:
http://arxiv.org/abs/1510.03376
Publikováno v:
Phys. Rev. D 92, 094513 (2015)
We investigate the Anderson transition found in the spectrum of the Dirac operator of Quantum Chromodynamics (QCD) at high temperature, studying the properties of the critical quark eigenfunctions. Applying multifractal finite-size scaling we determi
Externí odkaz:
http://arxiv.org/abs/1507.02162
Autor:
Bellwied, R., Borsanyi, Sz., Fodor, Z., Gunther, J., Kampert, K.-H., Katz, S.D., Kawanai, T., Kovacs, T.G., Mages, S.W., Pasztor, A., Pittler, F., Ratti, C., Redondo, J., Ringwald, A., Szabo, K.K.
Publikováno v:
In Nuclear Physics, Section A November 2017 967:732-735
Autor:
Burri, S. A., Kanwar, G., Alexandrou, C., Bacchio, S., Bergner, G., Finkenrath, J., Gasbarro, A., Hadjiyiannakou, K., Jansen, K., Kostrzewa, B., Koutsou, G., Ottnad, K., Petschlies, M., Pittler, F., Steffens, F., Urbach, C., Wenger, U.
Publikováno v:
Burri, S. A.; Kanwar, G.; Alexandrou, C.; Bacchio, S.; Bergner, G.; Finkenrath, J.; Gasbarro, A.; Hadjiyiannakou, K.; Jansen, K.; Kostrzewa, B.; Koutsou, G.; Ottnad, K.; Petschlies, M.; Pittler, F.; Steffens, F.; Urbach, C.; Wenger, U. (2022). Pseudoscalar-pole contributions to the muon $g-2$ at the physical point. In: The 39th International Symposium on Lattice Field Theory. Trieste, Italy: Sissa Medialab 10.22323/1.430.0306
Pseudoscalar-pole diagrams are an important component of estimates of the hadronic light-by-light (HLbL) contribution to the muon $g-2$. We report on our computation of the transition form factors $\mathcal{F}_{P \rightarrow \gamma^* \gamma^*}$ for t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::611a249623977140e2a14d034a194a42
https://boris.unibe.ch/179882/1/LATTICE2022_306.pdf
https://boris.unibe.ch/179882/1/LATTICE2022_306.pdf
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.