activity
19942003
most citedCosmic Rays from Decaying Vortons

32 citations · 84 across the 17 of their papers we have counts for

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7 papers · 1 filter

hep-ph2002

New physics scales and anomalous magnetic moment

Helder Chavez, Luis Masperi

Violation of chiral symmetry together with change of mass sign allows a linear correction in inverse power of new physics scale to the anomalous magnetic moment of muon. In this li…

hep-ph2002★ 4 cited

A possible origin of superconducting currents in cosmic strings

Helder Chavez, Luis Masperi

The scattering and capture of right-handed neutrinos by an Abelian cosmic string in the SO(10) grand unification model are considered. The scattering cross-section of neutrinos per…

hep-ph2001

Superheavy particles either for UHECR of for muon anomaly

H. Chavez, L. Masperi, M. Orsaria

We show that, according to the scheme of spontaneous breakings starting from a GUT with symmetry E6, it is possible that either a superheavy particle without ordinary interactions…

hep-ph1998★ 5 cited

Effect of strong magnetic field on the first-order electroweak phase transition

R. Fiore, A. Tiesi, L. Masperi +1

The broken-symmetry electroweak vacuum is destabilized in the presence of a magnetic field stronger than a critical value. Such magnetic field may be generated in the phase transit…

hep-ph1997★ 6 cited

Dynamical Cosmological Constant and Relations Among Pseudo Goldstone Bosons

Juan Estrada, Luis Masperi

The present apparent cosmological constant is interpreted as the potential of the lightest pseudo Goldstone boson. Some numerical relations among cosmological parameters and partic…

hep-ph1995★ 2 cited

Strings With Axionic Content and Baryogenesis

Roberto Fiore, Luis Masperi, Ariel Megevand

We describe different electroweak strings with axionic content, including non-topological configurations calculated numerically, and show their possible influence on baryogenesis i…

hep-ph1994★ 6 cited

Stability of Modified Electroweak Strings

Luis Masperi, Ariel Megevand

We discuss the stability of an electroweak string with axions in its core, which give to the configuration a quasi-topological property, and compare it with other modifications usi…