Results 41 to 50 of about 200,466 (211)

Baryonic content of the pion

Physics Letters B, 2021
The baryon form factor of charged pions arises since isospin symmetry is broken. We obtain estimates for this basic property in two phenomenological ways: from simple constituent quark models with unequal up and down quark masses, and from fitting to e+e−
Pablo Sanchez-Puertas, Enrique Ruiz Arriola, Wojciech Broniowski   +2 more
doaj   +1 more source

Baryon-baryon interactions from the lattice [PDF]

, 2008
I discuss the latest progress in calculating baryon-baryon interactions with lattice QCD. The latest results from the NPLQCD collaboration for nucleon-nucleon scattering along with preliminary calculations of hyperon-nucleon scattering are presented.
openaire   +2 more sources

Baryon-Baryon Interactions [PDF]

Progress of Theoretical Physics Supplement, 2010
Summary: We review the Nijmegen extended-soft-core (ESC) models for the baryon-baryon (\(BB\)) interactions of the \(SU(3)\) flavor-octet of baryons \((N, \Lambda , \Sigma \), and \(\Xi )\). The interactions are basically studied from the meson-exchange point of view, in the spirit of the Yukawa-approach to the nuclear force problem [\textit{H. Yukawa},
Rijken, T.A., Nagels, M.M., Yamamoto, Y.
openaire   +2 more sources

Lattice QCD at finite baryon density using analytic continuation

EPJ Web of Conferences, 2018
We simulate lattice QCD with two flavors of Wilson fermions at imaginary baryon chemical potential. Results for the baryon number density computed in the confining and deconfining phases at imaginary baryon chemical potential are used to determine the ...
Bornyakov V.G., Boyda D.L., Goy V.A., Iida H., Molochkov A.V., Nakamura Atsushi, Nikolaev A.A., Zakharov V.I., Wakayama M.   +8 more
doaj   +1 more source

Baryon Binding Energy in Sakai-Sugimoto Model

, 2009
The binding energy of baryon has been studied in the dual $AdS_5\times S^5$ string theory with a black hole interior. In this picture baryon is constructed of a $D_5$ brane vertex wrapping on $S^5$ and $N_c$ fundamental strings connected to it.
C.P. Herzog, C.P. Herzog, E. Caceres, E. Caceres, E. Nakano, E. Witten, F.L. Lin, G. Curtis, G. Curtis, H. Liu, H. Liu, J. Erdmenger, J. Sadeghi, J. Sadeghi, J. Sadeghi, J. Sadeghi, J.D. Edelstein, J.H. Schwarz, J.L. Petersen, J.M. Maldacena, K. Peeters, M. Chernicoff, M. Chernicoff, M. R. Pahlavani, M. Rozali, N. Armesto, O. Bergmann, R. Morad, S. Heshmatian, S.D. Avramis, S.S. Gubser, T. Matsuo   +31 more
core   +1 more source

The Large N_c Baryon-Meson I_t = J_t Rule Holds for Three Flavors [PDF]

, 2006
It has long been known that nonstrange baryon-meson scattering in the 1/N_c expansion of QCD greatly simplifies when expressed in terms of t-channel exchanges: The leading-order amplitudes satisfy the selection rule I_t = J_t.
Adkins, Adkins, Carone, Chemtob, Cohen, Cohen, Cohen, Cohen, Cohen, Cohen, Cohen, Cohen, Cohen, Cohen, Dashen, de Swart, Donohue, Donohue, Donohue, Guadagnini, Hayashi, Jain, Kaplan, Kaplan, Luty, Manohar, Mattis, Mattis, Mattis, Mattis, Mattis, Mattis, Mattis, Mazur, Richard F. Lebed, Walliser, Witten   +36 more
core   +1 more source

Diquark Study in Quark Model

Particles
To investigate diquark correlation in baryons, the baryon spectra with different light–heavy quark combinations are calculated using Gaussian expansion method within both the naive quark model and the chiral quark model. By computing the diquark energies
Xinmei Zhu, Hongxia Huang, Jialun Ping
doaj   +1 more source

Late-time Affleck-Dine baryogenesis after thermal inflation [PDF]

, 2006
Thermal inflation can solve serious cosmological problems such as overproduction of gravitinos and moduli. However, it also dilutes the preexisting baryon asymmetry.
Kawasaki, Masahiro, Nakayama, Kazunori
core   +2 more sources

Tensor Amplitudes for Partial Wave Analysis of $\mathit{\psi }\mathbf{\to }\mathbf{\Delta }\overline{\mathbf{\Delta }}$ within Helicity Frame

Universe
We have derived the tensor amplitudes for partial wave analysis of ψ→ΔΔ¯, Δ→pπ within the helicity frame, as well as the amplitudes for the other decay sequences with same final states.
Xiang Dong, Kexin Su, Hao Cai, Kai Zhu
doaj   +1 more source

Baryon-baryon interactions in free space and baryonic medium

, 2003
We study the interactions of the octet baryons in a relativistic meson exchange approach connecting free-space and in-medium interactions with those in finite (hyper)nuclei. A short sketch of the model including the relativistic T- and G-matrix and the mapping of the G-matrix onto density dependent vertex functionals in the density dependent ...
Keil, C., Lenske, H.
openaire   +2 more sources