Showing 2008 · hep-phShow all

19 papers · 2 filters

hep-ph2008★ 15 cited

On Gaugino Contributions to Soft Leptogenesis

Chee Sheng Fong, M. C. Gonzalez-Garcia

We study the contributions to CP violation in right-handed sneutrino decays induced by soft supersymmetry-breaking gaugino masses including flavour effects and paying special atten…

hep-ph2008★ 7 cited

Effective description of squark interactions

Jaume Guasch, Siannah Penaranda, Raul Sanchez-Florit

We propose an effective description of squark interactions with charginos/neutralinos. We recompute the strong corrections to squark partial decay widths, and compare the full one-…

hep-ph2008★ 39 cited

Effective string theory constraints on the long distance behavior of the subleading potentials

Guillem Perez-Nadal, Joan Soto

The dynamics of heavy quarkonium systems in the strong coupling regime reduces to a quantum mechanical problem with a number of potentials which may be organized in powers of 1/m,…

hep-ph2008★ 269 cited

A determination of parton distributions with faithful uncertainty estimation

Richard D. Ball, Luigi Del Debbio, Stefano Forte +5

We present the determination of a set of parton distributions of the nucleon, at next-to-leading order, from a global set of deep-inelastic scattering data: NNPDF1.0. The determina…

hep-ph2008★ 17 cited

On Quantum Effects in Soft Leptogenesis

Chee Sheng Fong, M. C. Gonzalez-Garcia

It has been recently shown that quantum Boltzman equations may be relevant for leptogenesis. Quantum effects, which lead to a time-dependent CP asymmetry, have been shown to be par…

hep-ph2008★ 21 cited

Supersymmetric Higgs Singlet Effects on B-Meson FCNC Observables at Large tan(beta)

Robert N. Hodgkinson, Apostolos Pilaftsis

Higgs singlet superfields are usually present in most extensions of the Minimal Supersymmetric Standard Model (MSSM) that address the mu-problem, such as the Next-to-Minimal Supers…

hep-ph2008★ 142 cited

The s-wave charmed baryon resonances from a coupled-channel approach with heavy quark symmetry

C. Garcia-Recio, V. K. Magas, T. Mizutani +4

We study charmed baryon resonances which are generated dynamically within a unitary meson-baryon coupled channel model that treats the heavy pseudoscalar and vector mesons on equal…

hep-ph2008★ 3 cited

Breakdown of the operator product expansion in the 't Hooft model

Jorge Mondejar, Antonio Pineda

We consider deep inelastic scattering in the 't Hooft model. Being solvable, this model allows us to directly compute the moments associated with the cross section at next-to-leadi…

hep-ph2008★ 23 cited

FCNC-induced heavy-quark events at the LHC from Supersymmetry

Santi Bejar, Jaume Guasch, David Lopez-Val +1

We analyze the production and subsequent decay of the neutral Higgs bosons of the MSSM into electrically neutral quark pairs qq'=bs,tc of different flavors at the LHC and compare w…

hep-ph2008★ 27 cited

Flavoured Soft Leptogenesis

Chee Sheng Fong, M. C. Gonzalez-Garcia

We study the impact of flavour in ``soft leptogenesis'' (leptogenesis induced by soft supersymmetry breaking terms). We address the question of how flavour effects can affect the r…

hep-ph2008★ 115 cited

Non-relativistic bound states at finite temperature (I): the hydrogen atom

Miguel Angel Escobedo, Joan Soto

We illustrate how to apply modern effective field theory techniques and dimensional regularization to factorize the various scales which appear in non-relativistic bound states at…

hep-ph2008★ 12 cited

Parity doubling from Weinberg sum rules

A. A. Andrianov, D. Espriu

We investigate the relation among slopes and intercepts of Regge trajectories for mesons of a given spin and different parities using large N_c arguments and the matching to pertur…

hep-ph2008★ 26 cited

Constraints from Solar and Reactor Neutrinos on Unparticle Long-Range Forces

M. C. Gonzalez-Garcia, P. C. Holanda, R. Zukanovich Funchal

We have investigated the impact of long-range forces induced by unparticle operators of scalar, vector and tensor nature coupled to fermions in the interpretation of solar neutrino…

hep-ph2008

Chiral SU(3) Bethe Salpeter Model: Extension to SU(6) and SU(8) Spin-Flavor Symmetries

J. Nieves, C. Garcia-Recio, L. L. Salcedo +4

Consistent SU(6) and SU(8) spin-flavor extensions of the SU(3) flavor Weinberg-Tomozawa (WT) meson-baryon chiral Lagrangian are constructed, which incorporate vector meson degrees…

hep-ph2008★ 132 cited

Status of Oscillation plus Decay of Atmospheric and Long-Baseline Neutrinos

M. C. Gonzalez-Garcia, Michele Maltoni

We study the interplay of neutrino oscillation and invisible decay in atmospheric and long-baseline neutrinos experiments. We perform a global analysis of the full atmospheric data…

hep-ph2008★ 6 cited

Triple Higgs boson production at the ILC within a generic Two-Higgs-Doublet Model

Giancarlo Ferrera, Jaume Guasch, David Lopez-Val +1

We present a study of triple Higgs boson (3H) production at the International Linear Collider (ILC) within the general Two-Higgs-Doublet Model (2HDM). We compute the production cro…

hep-ph2008★ 78 cited

Collider aspects of flavour physics at high Q

T. Lari, L. Pape, W. Porod +105

This review presents flavour related issues in the production and decays of heavy states at LHC, both from the experimental side and from the theoretical side. We review top quark…

hep-ph2008★ 4 cited

Quasiparticle excitations in relativistic quantum field theory

Daniel Arteaga

We analyze the particle-like excitations arising in relativistic field theories in states different than the vacuum. The basic properties characterizing the quasiparticle propagati…

hep-ph2008★ 412 cited

SUSY Les Houches Accord 2

B. C. Allanach, C. Balazs, G. Belanger +30

The Supersymmetry Les Houches Accord (SLHA) provides a universal set of conventions for conveying spectral and decay information for supersymmetry analysis problems in high energy…