Zobrazeno 1 - 10
of 216
pro vyhledávání: '"Piemonte S"'
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
The infrared effective theory of adjoint QCD with one Dirac flavour is still under debate. The theory could be confining, conformal, or with a massless fermion in the infrared. The study of chiral symmetry seems to be important to answer this questio
Externí odkaz:
http://arxiv.org/abs/2212.10210
Charmonium-like resonances and bound states with isospin zero and $J^{PC}=0^{++},~1^{--},~2^{++},~3^{--}$ are extracted on the lattice. Coupled $D\bar D$ and $D_s\bar D_s$ scattering suggests three charmonium-like states with $J^{PC}=0^{++}$ in addit
Externí odkaz:
http://arxiv.org/abs/2111.02934
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
We present the first lattice investigation of coupled-channel $D\bar D$ and $D_s\bar D_s$ scattering in the $J^{PC}=0^{++}$ and $2^{++}$ channels. The scattering matrix for partial waves $l=0,2$ and isospin zero is determined using multiple volumes a
Externí odkaz:
http://arxiv.org/abs/2011.02542
Publikováno v:
Phys. Rev. D 102, 014503 (2020)
Supersymmetric Yang-Mills (SYM) theories in four dimensions exhibit many interesting non-perturbative phenomena that can be studied by means of Monte Carlo lattice simulations. However, the lattice regularization breaks supersymmetry explicitly, and
Externí odkaz:
http://arxiv.org/abs/2005.02236
Publikováno v:
Phys. Rev. D 100, 074505 (2019)
We present a lattice QCD study of charmonium resonances and bound states with $J^{PC}=1^{--}$ and $3^{--}$ near the open-charm threshold, taking into account their strong transitions to $\bar DD$. Vector charmonia are the most abundant in the experim
Externí odkaz:
http://arxiv.org/abs/1905.03506
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
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