Zobrazeno 1 - 10
of 7 491
pro vyhledávání: '"A. Alexandrou"'
Autor:
Alexandrou, C., Bacchio, S., De Santis, A., Evangelista, A., Finkenrath, J., Frezzotti, R., Gagliardi, G., Garofalo, M., Kalntis, N., Kostrzewa, B., Lubicz, V., Pittler, F., Romiti, S., Sanfilippo, F., Simula, S., Tantalo, N., Urbach, C., Wenger, U.
We present a lattice calculation of the Hadronic Vacuum Polarization (HVP) contribution of the strange and charm quarks to the anomalous magnetic moment of the muon in isospin symmetric QCD. We employ the gauge configurations generated by the Extende
Externí odkaz:
http://arxiv.org/abs/2411.08852
Autor:
P. Bartolucci, K.I. Ataga, M. Callaghan, L. De Franceschi, C. Minniti, A. Alexandrou, D.-.C. Imbs, R.P. Fox, H. Patel, A. Sostelly, J. Schimmel
Publikováno v:
HemaSphere, Vol 7, Iss S1, Pp 22-22 (2023)
Externí odkaz:
https://doaj.org/article/caf22b796a8b4e06b2960cf7684fe49f
Autor:
Alexandrou, Constantia
We give a brief overview of recent progress in lattice QCD simulations that is enabling precision studies of the three-dimensional structure of the nucleon. We present results on nucleon charges and second Mellin moments of parton distribution functi
Externí odkaz:
http://arxiv.org/abs/2408.14370
We investigate contributions of excited states to nucleon matrix elements computed in lattice QCD by employing, in addition to the standard nucleon interpolating operator, pion-nucleon ($\pi$-$N$) operators. We solve a generalized eigenvalue problem
Externí odkaz:
http://arxiv.org/abs/2408.03893
For a large class of cohomology theories, we prove that refined unramified cohomology is canonically isomorphic to the hypercohomology of a natural truncated complex of Zariski sheaves. This generalizes a classical result of Bloch and Ogus and solves
Externí odkaz:
http://arxiv.org/abs/2406.07092
Autor:
Alexandrou, Constantia, Bacchio, Simone, Constantinou, Martha, Delmar, Joseph, Finkenrath, Jacob, Kostrzewa, Bartosz, Petschlies, Marcus, Chacon, Luis Alberto Rodriguez, Spanoudes, Gregoris, Steffens, Fernanda, Urbach, Carsten, wenger, Urs
We present the full decomposition of the momentum fraction carried by quarks and gluons in the pion and the kaon. We employ three gauge ensembles generated with $N_f=2+1+1$ Wilson twisted-mass clover-improved fermions at the physical quark masses. Fo
Externí odkaz:
http://arxiv.org/abs/2405.08529
Autor:
Alexandrou, Constantia, Finkenrath, Jacob, Leontiou, Theodoros, Meinel, Stefan, Pflaumer, Martin, Wagner, Marc
Publikováno v:
Phys. Rev. D 110, 054510 (2024)
We study the $\bar b \bar b u d$ tetraquark with quantum numbers $I(J^P) = 0(1^+)$ as well as the $\bar b \bar b u s$ tetraquark with quantum numbers $J^P = 1^+$ using lattice QCD. We improve on existing work by including both local and scattering in
Externí odkaz:
http://arxiv.org/abs/2404.03588
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:
J. Gligorov, X. Pivot, B. Ataseven, M. De Laurentiis, A. Llombart, K.H. Jung, A. Manikhas, H.A. Azim, A. Alexandrou, K. Gupta, L. Herraez-Baranda, N. Tosti, E. Restuccia
Publikováno v:
Breast, Vol 56, Iss , Pp S21-S22 (2021)
Externí odkaz:
https://doaj.org/article/cdbbced2cf6847a6a447321661688820
Autor:
Alexandrou, Theodosis
We compare two cycle class maps on torsion cycles and show that they agree up to a minus sign. The first one goes back to Bloch (1979), with recent generalizations to non-closed fields. The second is the \'etale motivic cycle class map $\alpha^{i}_{X
Externí odkaz:
http://arxiv.org/abs/2401.11014