output
19922026
Showing 1998 · hep-phShow all

9 papers · 2 filters

hep-ph1998★ 1 cited

Phenomenological Bounds on B to Light Semileptonic Form Factors

D. Falcone, P. Santorelli, N. Tancredi +1

The form factors for the weak currents between B and light mesons are studied by relating them to the corresponding D form factors at q^2_{max} according to HQET, by evaluating the…

hep-ph1998★ 121 cited

The Decays beyond Leading Order in the Chiral Expansion

G. D'Ambrosio, G. Ecker, G. Isidori +1

We present a model-independent analysis of and decays, including unitarity corrections and a general decomposition of the…

hep-ph1998★ 8 cited

Relation between quark masses and weak mixings

D. Falcone, F. Tramontano

Simple transformation formulas between fermion matrices and observables, and numerical values of quark matrices, are obtained on a particular weak basis with one quark matrix diago…

hep-ph1998★ 12 cited

A Semianalytical Method to Evolve Parton Distributions

Pietro Santorelli, Egidio Scrimieri

We present a new method to solve in a semianalytical way the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution equations at NLO order in the x-space. The method allows to constr…

hep-ph1998★ 17 cited

Wave Function Renormalization at Finite Temperature

S. Esposito, G. Mangano, G. Miele +1

We present a derivation of the medium dependent wave function renormalization for a spinor field in presence of a thermal bath. We show that, as already pointed out in literature,…

hep-ph1998★ 28 cited

Maximal Acceleration Corrections to the Lamb Shift of Hydrogen, Deuterium and He

G. Lambiase, G. Papini, G. Scarpetta

The maximal acceleration corrections to the Lamb shift of one--electron atoms are calculated in a non--relativistic approximation. They are compatible with experimental results, ar…

hep-ph1998★ 1 cited

Renormalization Group Naturalness of GUT Higgs Potentials

B. C. Allanach, G. Amelino-Camelia, O. Philipsen +2

We analyze the symmetry-breaking patterns of grand unified theories from the point of view of a recently-proposed criterion of renormalization-group naturalness. We perform the ana…

hep-ph1998★ 26 cited

Polarized Quarks, Gluons and Sea in Nucleon Structure Functions

C. Bourrely, F. Buccella, O. Pisanti +2

We perform a NLO analysis of polarized deep inelastic scattering data to test two different solutions to the so called spin crisis: one of them based on the axial gluon anomaly and…

hep-ph1998★ 9 cited

Flavour-conserving oscillations of Dirac-Majorana neutrinos

S. Esposito

We analyze both chirality-changing and chirality-preserving transitions of Dirac-Majorana neutrinos. In vacuum, the first ones are suppressed with respect to the others due to heli…