Zobrazeno 1 - 10
of 402
pro vyhledávání: '"Wenger, U."'
Autor:
Alexandrou, C., Bacchio, S., De Santis, A., Evangelista, A., Finkenrath, J., Frezzotti, R., Gagliardi, G., Garofalo, M., Kostrzewa, B., Lubicz, V., Romiti, S., Sanfilippo, F., Simula, S., Tantalo, N., Urbach, C., Wenger, U.
We present a lattice determination of the inclusive decay rate of the process $\tau\mapsto X_{us} \nu_\tau$ in which the $\tau$ lepton decays into a generic hadronic state $X_{us}$ with $\bar u s$ flavour quantum numbers. Our results have been obtain
Externí odkaz:
http://arxiv.org/abs/2403.05404
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., Dimopoulos, P., Finkenrath, J., Frezzotti, R., Gagliardi, G., Garofalo, M., Hadjiyiannakou, K., Kostrzewa, B., Jansen, K., Lubicz, V., Petschlies, M., Sanfilippo, F., Simula, S., Urbach, C., Wenger, U.
We present a lattice determination of the leading-order hadronic vacuum polarization (HVP) contribution to the muon anomalous magnetic moment, $a_{\mu}^{\rm HVP}$, in the so-called short and intermediate time-distance windows, $a_{\mu}^{\rm SD}$ and
Externí odkaz:
http://arxiv.org/abs/2212.09340
Autor:
Alexandrou, C., Bacchio, S., Dimopoulos, P., Finkenrath, J., Frezzotti, R., Gagliardi, G., Garofalo, M., Hadjiyiannakou, K., Kostrzewa, B., Jansen, K., Lubicz, V., Petschlies, M., Sanfilippo, F., Simula, S., Urbach, C., Wenger, U.
We present a lattice determination of the leading-order hadronic vacuum polarization (HVP) contribution to the muon anomalous magnetic moment, $a_{\mu}^{\rm HVP}$, in the so-called short and intermediate time-distance windows, $a_{\mu}^{\rm SD}$ and
Externí odkaz:
http://arxiv.org/abs/2206.15084
Autor:
Aoki, Y., Blum, T., Colangelo, G., Collins, S., Della Morte, M., Dimopoulos, P., Dürr, S., Feng, X., Fukaya, H., Golterman, M., Gottlieb, Steven, Gupta, R., Hashimoto, S., Heller, U. M., Herdoiza, G., Hernandez, P., Horsley, R., Jüttner, A., Kaneko, T., Lunghi, E., Meinel, S., Monahan, C., Nicholson, A., Onogi, T., Pena, C., Petreczky, P., Portelli, A., Ramos, A., Sharpe, S. R., Simone, J. N., Simula, S., Sint, S., Sommer, R., Tantalo, N., Van de Water, R., Wenger, U., Wittig, H.
Publikováno v:
Eur.Phys.J.C 82 (2022) 10, 869
We review lattice results related to pion, kaon, $D$-meson, $B$-meson, and nucleon physics with the aim of making them easily accessible to the nuclear and particle physics communities. More specifically, we report on the determination of the light-q
Externí odkaz:
http://arxiv.org/abs/2111.09849
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:
Alexandrou, C., Bacchio, S., Bergner, G., Dimopoulos, P., Finkenrath, J., Frezzotti, R., Garofalo, M., Kostrzewa, B., Koutsou, G., Labus, P., Sanfilippo, F., Simula, S., Ueding, M., Urbach, C., Wenger, U.
We present a determination of the ratio of kaon and pion leptonic decay constants in isosymmetric QCD (isoQCD), $f_K / f_\pi$, making use of the gauge ensembles produced by the Extended Twisted Mass Collaboration (ETMC) with $N_f = 2 + 1 + 1$ flavors
Externí odkaz:
http://arxiv.org/abs/2104.06747
Autor:
Aoki, S., Aoki, Y., Becirevic, D., Blum, T., Colangelo, G., Collins, S., Della Morte, M., Dimopoulos, P., Dürr, S., Fukaya, H., Golterman, M., Gottlieb, Steven, Gupta, R., Hashimoto, S., Heller, U. M., Herdoiza, G., Horsley, R., Jüttner, A., Kaneko, T., Lin, C. -J. D., Lunghi, E., Mawhinney, R., Nicholson, A., Onogi, T., Pena, C., Portelli, A., Ramos, A., Sharpe, S. R., Simone, J. N., Simula, S., Sommer, R., Van De Water, R., Vladikas, A., Wenger, U., Wittig, H.
We review lattice results related to pion, kaon, $D$-meson, $B$-meson, and nucleon physics with the aim of making them easily accessible to the nuclear and particle physics communities. More specifically, we report on the determination of the light-q
Externí odkaz:
http://arxiv.org/abs/1902.08191
Autor:
Alexandrou, C., Bacchio, S., Dimopoulos, P., Finkenrath, J., Frezzotti, R., Jansen, K., Kostrzewa, B., Mangin-Brinet, M., Sanfilippo, F., Simula, S., Urbach, C., Wenger, U.
Publikováno v:
Phys. Rev. D 97, 014508 (2018)
We present an investigation of the electromagnetic pion form factor, $F_\pi(Q^2)$, at small values of the four-momentum transfer $Q^2$ ($\lesssim 0.25$ GeV$^2$), based on the gauge configurations generated by European Twisted Mass Collaboration with
Externí odkaz:
http://arxiv.org/abs/1710.10401