Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Grifols, J. A."'
Autor:
Grifols, J. A.
Publikováno v:
Astropart.Phys.25:98-105,2006
In a medium composed of scalar particles with non-zero mass, the range of Van-der-Waals-type scalar mediated interactions among nucleons becomes infinite when the medium makes a transition to a Bose-Einstein condensed phase. We explore this phenomeno
Externí odkaz:
http://arxiv.org/abs/astro-ph/0505602
Autor:
Ferrer, F., Grifols, J. A.
Publikováno v:
JCAP 0412 (2004) 012
Scalar mediated interactions among baryons extend well above the Compton wavelength, when they are embedded in a Bose-Einstein condensate composed of the mediating particles. Indeed, this non-trivial environment results in an infinite-ranged interact
Externí odkaz:
http://arxiv.org/abs/astro-ph/0407532
Publikováno v:
Phys.Lett.B587:184-188,2004
Neutrinos with non-zero magnetic moments can dissociate deuterium nuclei by a photon exchange, in addition to the weak neutral current process. We calculate the neutrino-magnetic moment induced photo-dissociation cross section of deuterium using the
Externí odkaz:
http://arxiv.org/abs/hep-ph/0401144
Autor:
Grifols, J. A., Masso, E.
Publikováno v:
Phys.Lett. B579 (2004) 123-126
Lepton number charges might be the source of long range forces. If one accepts that neutrinos produced in the Sun do indeed oscillate while crossing the interior of the Sun, then the shift in the phase of the neutrino wavefunction caused by an hypoth
Externí odkaz:
http://arxiv.org/abs/hep-ph/0311141
Publikováno v:
Phys.Rept.379:69-148,2003
Compelling evidences in favor of neutrino masses and mixing obtained in the last years in Super-Kamiokande, SNO, KamLAND and other neutrino experiments made the physics of massive and mixed neutrinos a frontier field of research in particle physics a
Externí odkaz:
http://arxiv.org/abs/hep-ph/0211462
The possible test of the calculations of nuclear matrix elements of the $(\beta \beta)_{0\nu}$-decay
Autor:
Bilenky, S. M., Grifols, J. A.
Publikováno v:
Phys.Lett.B550:154-159,2002
The existing calculations of the nuclear matrix elements of the neutrinoless double $\beta$-decay differ by about a factor three. This uncertainty prevents quantitative interpretation of the results of experiments searching for this process. We sugge
Externí odkaz:
http://arxiv.org/abs/hep-ph/0211101
Autor:
Bilenky, S. M., Grifols, J. A.
The existing calculations of the nuclear matrix elements of the neutrinoless double beta-decay differ by about a factor three. This uncertainty prevents quantative interpretation of the results of experiments searching for this process. We suggest he
Externí odkaz:
http://arxiv.org/abs/hep-ph/0207281
Autor:
Ferrer, F., Grifols, J. A.
Publikováno v:
Phys.Rev. D63 (2001) 025020
We explore the consequences of Bose-Einstein condensation on two-scalar-exchange mediated forces among bodies that sit in a boson gas. We find that below the condensation temperature the range of the forces becomes infinite while it is finite at temp
Externí odkaz:
http://arxiv.org/abs/hep-ph/0001185
Publikováno v:
Phys.Rev. D65 (2002) 055004
We generalize the Schwinger mechanism and calculate the probability of the decay of intense electromagnetic fields to pseudoscalar particles. We also point out that our estimate for axion emission in a previous paper was incorrect.
Comment: 25 p
Comment: 25 p
Externí odkaz:
http://arxiv.org/abs/hep-ph/9912485
Publikováno v:
Phys.Rev. D61 (2000) 057304
Neutrinos mediate long range forces among macroscopic bodies in vacuum. When the bodies are placed in the neutrino cosmic background, these forces are modified. Indeed, at distances long compared to the scale $T^{-1}$, the relic neutrinos completely
Externí odkaz:
http://arxiv.org/abs/hep-ph/9906463