Zobrazeno 1 - 10
of 345
pro vyhledávání: '"Bali G."'
Autor:
Bali, G. S., Braun, V. M., Bürger, S., Göckeler, M., Gruber, M., Kaiser, F., Kniehl, B. A., Veretin, O. L., Wein, P.
We present updated results on the wave function normalization constants and the first moments of the light cone distribution amplitudes for the lowest-lying baryon octet. The analysis is carried out on a large number of $n_f=2+1$ lattice gauge ensemb
Externí odkaz:
http://arxiv.org/abs/2411.19091
Publikováno v:
EPJ Web of Conferences, Vol 175, p 14006 (2018)
Lattice simulation of charmonium resonances with non-zero momentum provides additional information on the two-meson scattering matrices. However, the reduced rotational symmetry in a moving frame renders a number of states with different JP in the sa
Externí odkaz:
https://doaj.org/article/c6fec6a45e1546f6973420f784be93c6
Autor:
Bürger, S., Wurm, T., Löffler, M., Göckeler, M., Bali, G., Collins, S., Schäfer, A., Sternbeck, A.
Using lattice QCD, we calculate the twist-2 contribution $a_2$ to the third Mellin moment of the spin structure functions $g_1$ and $g_2$ in the nucleon. In addition we evaluate the twist-3 contribution $d_2$. Our computations make use of $N_f=2+1$ g
Externí odkaz:
http://arxiv.org/abs/2111.08306
Autor:
Bali, G. S., Bürger, S., Collins, S., Göckeler, M., Gruber, M., Piemonte, S., Schäfer, A., Sternbeck, A., Wein, P.
Publikováno v:
Phys. Rev. D 103, 094511 (2021)
We present the nonperturbative computation of renormalization factors in the RI'-(S)MOM schemes for the QCD gauge field ensembles generated by the CLS (coordinated lattice simulations) effort with three flavors of nonperturbatively improved Wilson (c
Externí odkaz:
http://arxiv.org/abs/2012.06284
It has been observed in multiple lattice determinations of isovector axial and pseudoscalar nucleon form factors, that, despite the fact that the partial conservation of the axialvector current is fulfilled on the level of correlation functions, the
Externí odkaz:
http://arxiv.org/abs/1810.05569
Autor:
Bali, G. S., Collins, S., Mohler, D., Padmanath, M., Piemonte, S., Prelovsek, S., Weishaeupl, S.
Publikováno v:
EPJ Web Conf., 175 (2018) 05020
The nature of resonances and excited states near decay thresholds is encoded in scattering amplitudes, which can be extracted from single-particle and multiparticle correlators in finite volumes. Lattice calculations have only recently reached the pr
Externí odkaz:
http://arxiv.org/abs/1806.02651
Autor:
Prelovsek, S., Bali, G., Collins, S., Mohler, D., Padmanath, M., Piemonte, S., Weishaeupl, S.
Lattice simulation of charmonium resonances with non-zero momentum provides additional information on the two-meson scattering matrices. However, the reduced rotational symmetry in a moving frame renders a number of states with different $J^P$ in the
Externí odkaz:
http://arxiv.org/abs/1710.06237
Autor:
RQCD Collaboration, Bali, G. S., Braun, V. M., Göckeler, M., Gruber, M., Hutzler, F., Korcyl, P., Lang, B., Schäfer, A.
Using the second moment of the pion distribution amplitude as an example, we investigate whether lattice calculations of matrix elements of local operators involving covariant derivatives may benefit from the recently proposed momentum smearing techn
Externí odkaz:
http://arxiv.org/abs/1705.10236
Publikováno v:
PoS(LATTICE2016)187
We report on our studies of the renormalization of flavor singlet quark bilinear operators in lattice QCD. The renormalization constants are determined non-perturbatively using gauge field ensembles with Nf=2 dynamical clover improved fermions. The r
Externí odkaz:
http://arxiv.org/abs/1703.03745
We determine the equation of state of 2+1-flavor QCD with physical quark masses, in the presence of a constant (electro)magnetic background field on the lattice. To determine the free energy at nonzero magnetic fields we develop a new method, which i
Externí odkaz:
http://arxiv.org/abs/1406.0269