Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Alarcón, José"'
Publikováno v:
Phys. Rev. D 102, 114026 (2020)
We examine the polarized doubly-virtual Compton scattering (VVCS) off the nucleon using chiral perturbation theory ($\chi$PT). The polarized VVCS contains a wealth of information on the spin structure of the nucleon which is relevant to the calculati
Externí odkaz:
http://arxiv.org/abs/2006.08626
Publikováno v:
Phys. Rev. D 102, 014006 (2020)
The forward doubly-virtual Compton scattering (VVCS) off the nucleon contains a wealth of information on nucleon structure, relevant to the calculation of the two-photon-exchange effects in atomic spectroscopy and electron scattering. We report on a
Externí odkaz:
http://arxiv.org/abs/2005.09518
We explore the structure of the spin-1/2 flavor-octet baryons (hyperons) through their electromagnetic transverse densities. The transverse densities describe the distribution of charge and magnetization at fixed light-front time and enable a spatial
Externí odkaz:
http://arxiv.org/abs/1802.00479
Neutron-proton scattering at next-to-next-to-leading order in Nuclear Lattice Effective Field Theory
Autor:
Alarcón, Jose Manuel, Du, Dechuan, Klein, Nico, Lähde, Timo A., Lee, Dean, Li, Ning, Lu, Bing-Nan, Luu, Thomas, Meißner, Ulf-G.
We present a systematic study of neutron-proton scattering in Nuclear Lattice Effective Field Theory (NLEFT), in terms of the computationally efficient radial Hamiltonian method. Our leading-order (LO) interaction consists of smeared, local contact t
Externí odkaz:
http://arxiv.org/abs/1702.05319
Transverse densities describe the distribution of charge and current at fixed light-front time and provide a frame-independent spatial representation of hadrons as relativistic systems. We calculate the transverse densities of the octet baryons at pe
Externí odkaz:
http://arxiv.org/abs/1701.05871
Autor:
Alarcón, Jose Manuel
In this contribution, we show some recent progress in the study of neutron-proton scattering with Nuclear Lattice Effective Field Theory (NLEFT). We present preliminary studies of both, the uncertainties in the $np$ phase shifts extracted with NLEFT,
Externí odkaz:
http://arxiv.org/abs/1511.04744
Publikováno v:
Phys. Rev. C 90, 055202 (2014)
We obtain leading- and next-to-leading order predictions of chiral perturbation theory for several prominent moments of nucleon structure functions. These free-parameter free results turn out to be in overall agreement with the available empirical in
Externí odkaz:
http://arxiv.org/abs/1407.2574
Autor:
Alarcón, Jose Manuel
We highlight some of the recent advances in the application of chiral effective field theory (chiral EFT) with baryons to the $\pi N$ scattering process. We recall some problems that cast doubt on the applicability of chiral EFT to $\pi N$ and show h
Externí odkaz:
http://arxiv.org/abs/1401.7789
The proton polarizability effect in the muonic-hydrogen Lamb shift comes out as a prediction of baryon chiral perturbation theory at leading order and our calculation yields for it: $\Delta E^{(\mathrm{pol})} (2P-2S) = 8^{+3}_{-1}\, \mu$eV. This resu
Externí odkaz:
http://arxiv.org/abs/1312.1219