Zobrazeno 1 - 10
of 91
pro vyhledávání: '"M. Chiapparini"'
Publikováno v:
Nuclear Physics B - Proceedings Supplements. 199:297-302
We present an investigation of particle production yields measured in central Au-Au collision s = 130 GeV at RHIC via thermal model. In our approach we study the role played by the hadron masses in the measured hadronic ratio fittings. With this purp
Publikováno v:
Physics Letters B. 659:559-564
Publikováno v:
International Journal of Modern Physics E. 16:2939-2942
We study the spectrum of gluon screening masses in lattice Yang–Mills theory as a function of the lattice size, for the gauge group SU(2) and near the deconfinement temperature. We obtain values for the mass ratios consistent with predictions from
Publikováno v:
AIP Conference Proceedings.
In this work, we use the QCD Sum Rules (QCDSR) technique to obtain informations about the strong coupling constant of the three meson vertex φDsDs. The calculation is done for the case where the φ meson is considered off-shell.
Publikováno v:
AIP Conference Proceedings.
Pulsars instabilities have been investigated as an important source of gravitational wave generation in astrophysical sites. The formation of this object is accompanied by a very intense neutrino flux emission, which cools down the nascent protoneutr
Autor:
B. Osório Rodrigues, M. E. Bracco, M. Chiapparini, Marina Nielsen, Fernando S. Navarra, Mirian E. Bracco
In this work, we studied the Borel masses relation used in QCDSR calculations. These masses are the parameters of the Borel transform used when the three point function is calculated. We analised an usual and a more general linear relations. We concl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99684db02b45dc2c7446b96f07cb039d
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
We review the calculations of form factors and coupling constants in vertices with charm mesons in the framework of QCD sum rules. We first discuss the motivation for this work, describing possible applications of these form factors to heavy ion coll
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74e76f2b67ce88d3d9e617dcdaf7e8b1
Publikováno v:
AIP Conference Proceedings.
In the present work we determine the equation of state of delta‐resonance‐rich stellar matter and discuss the effects of the baryon‐meson coupling constants on the delta population in the stellar medium. We extended the non‐linear Walecka (NL
Autor:
R. S. Costa, J. C. T. Oliveira, H. Rodrigues, M. Chiapparini, S. B. Duarte, A. Deppman, C. Krug, G. S. Zahn, J. L. Rios, N. Added, V. S. Timoteo
Publikováno v:
AIP Conference Proceedings.
We study the nuclear matter properties in the regime of high temperatures using a relativistic mean‐field theory. Contrasting with the usual linear Walecka model [1], we include the σ‐ω meson coupling [2] in order to investigate the role of thi
Autor:
R. S. Costa, J. C. T. Oliveira, H. Rodrigues, M. Chiapparini, S. B. Duarte, Marina Nielsen, Fernando S. Navarra, Mirian E. Bracco
Publikováno v:
AIP Conference Proceedings.
We study the effect of the σ‐ω mesons interaction on nucleon‐antinucleon matter properties. This interaction is employed in the context of the linear Walecka model to discuss the behavior of this system at high temperature and low net baryonic