Showing 2005 · hep-phShow all

8 papers · 2 filters

hep-ph2005★ 25 cited

On the smallness of the cosmological constant in SUGRA models

C. Froggatt, R. Nevzorov, H. B. Nielsen

In no--scale supergravity global symmetries protect local supersymmetry and a zero value for the cosmological constant. We consider the breakdown of these symmetries and present a…

hep-ph2005★ 16 cited

Single-flavour and two-flavour pairing in three-flavour quark matter

Mark Alford, Greig Cowan

We study single-flavour quark pairing ("self-pairing") in colour-superconducting phases of quark matter, paying particular attention to the difference between scenarios where all t…

hep-ph2005★ 233 cited

Supersymmetry Parameter Analysis: SPA Convention and Project

J. A. Aguilar-Saavedra, A. Ali, B. C. Allanach +122

High-precision analyses of supersymmetry parameters aim at reconstructing the fundamental supersymmetric theory and its breaking mechanism. A well defined theoretical framework is…

hep-ph2005★ 84 cited

High-precision determination of the light-quark masses from realistic lattice QCD

Quentin Mason, Howard D. Trottier, Ron Horgan +2

Three-flavor lattice QCD simulations and two-loop perturbation theory are used to make the most precise determination to date of the strange-, up-, and down-quark masses, , $m…

hep-ph2005★ 94 cited

Invariant mass distributions in cascade decays

D. J. Miller, P. Osland, A. R. Raklev

We derive analytical expressions for the shape of the invariant mass distributions of massless Standard Model endproducts in cascade decays involving massive New Physics (NP) parti…

hep-ph2005★ 14 cited

Flipped SU(5), see-saw scale physics and degenerate vacua

C. R. Das, C. D. Froggatt, L. V. Laperashvili +1

We investigate the requirement of the existence of two degenerate vacua of the effective potential as a function of the Weinberg-Salam Higgs scalar field norm, as suggested by the…

hep-ph2005★ 2 cited

The B_K Kaon Parameter in the 1/N_c Expansion

Joaquim Prades, Johan Bijnens, Elvira Gamiz

We present work going on calculating the kaon B_K parameter in the 1/N_c expansion. The goal of this work is to analyze analytically in the presence of chiral corrections this phen…

hep-ph2005★ 102 cited

Measurement of the Gluino Mass via Cascade Decays for SPS 1a

B. K. Gjelsten, D. J. Miller, P. Osland

If R-parity conserving supersymmetry is realised with masses below the TeV scale, sparticles will be produced and decay in cascades at the LHC. In the case of a neutral LSP, which…