output
19912026
Showing 2006 · hep-phShow all

64 papers · 2 filters

hep-ph2006★ 334 cited

Stable Massive Particles at Colliders

M. Fairbairn, A. C. Kraan, D. A. Milstead +3

We review the theoretical motivations and experimental status of searches for stable massive particles (SMPs) which could be sufficiently long-lived as to be directly detected at c…

hep-ph2006★ 20 cited

Distinguishing Supersymmetry From Universal Extra Dimensions or Little Higgs Models With Dark Matter Experiments

Dan Hooper, Gabrijela Zaharijas

There are compelling reasons to think that new physics will appear at or below the TeV-scale. It is not known what form this new physics will take, however. Although The Large Hadr…

hep-ph2006★ 64 cited

Gauge Trimming of Neutrino Masses

Mu-Chun Chen, Andre de Gouvea, Bogdan A. Dobrescu

We show that under a new U(1) gauge symmetry, which is non-anomalous in the presence of one ``right-handed neutrino'' per generation and consistent with the standard model Yukawa c…

hep-ph2006★ 94 cited

Huge right-handed current effects in B->K*(K pi)l+l- in supersymmetry

E. Lunghi, J. Matias

Transverse asymmetries in the decay B->K*(K pi)l+l- are an extremely sensitive probe of right-handed flavour-changing neutral currents. We show how to include the contribution from…

hep-ph2006

Small Visible Energy Scalar Top Iterative Discriminant Analysis for Different Center-of-Mass Energies

A. Sopczak, A. Finch, A. Freitas +2

Light scalar top quarks with a small mass difference with respect to the neutralino mass are of particular cosmological interest. This study uses an Iterative Discriminant Analysis…

hep-ph2006★ 11 cited

Neutrino Phenomenology, Dark Energy and Leptogenesis from pseudo-Nambu-Goldstone Bosons

C. T. Hill, I. Mocioiu, E. A. Paschos +1

We consider a model of dynamical neutrino masses via the see-saw mechanism. Nambu-Goldstone bosons (majorons) arise associated with the formation of the heavy right-handed majorana…

hep-ph2006★ 1 cited

Relating Leptogenesis to Low Energy CP Violation

Mu-Chun Chen, K. T. Mahanthappa

In the minimal left-right symmetric model with spontaneous CP violation, there are only two intrinsic CP violating phases to account for all CP violation in both the quark and lept…

hep-ph2006★ 20 cited

The Interplay Between Collider Searches For Supersymmetric Higgs Bosons and Direct Dark Matter Experiments

Marcela Carena, Dan Hooper, Alberto Vallinotto

In this article, we explore the interplay between searches for supersymmetric particles and Higgs bosons at hadron colliders (the Tevatron and the LHC) and direct dark matter searc…

hep-ph2006★ 64 cited

Production of a W boson and two jets with one b-quark tag

J. Campbell, R. K. Ellis, F. Maltoni +1

The production of a W boson and two jets, at least one of which contains a b quark, is a principal background to single-top production, Higgs production, and signals of new physics…

hep-ph2006★ 30 cited

Mass splittings in and

Jonathan L. Rosner

The charged and states have recently been reported by the CDF Collaboration. The relation of their reported charge-averaged masses to expectations based on the quark…

hep-ph2006★ 22 cited

Sum rule for rate and CP asymmetry in

Michael Gronau, Jonathan L. Rosner

A sum rule relating the ratio and the CP asymmetry is proved to first order in the ratio of tree to penguin…

hep-ph2006★ 20 cited

QCD Corrections to Higgs Pair Production in Bottom Quark Fusion

Sally Dawson, Chung Kao, Yili Wang +1

We present a complete next-to-leading order (NLO) calculation for the total cross section of inclusive Higgs pair production via bottom-quark fusion () at the CERN…

hep-ph2006★ 46 cited

Collider Signature of T-quarks

Marcela Carena, Jay Hubisz, Maxim Perelstein +1

Little Higgs models with T Parity contain new vector-like fermions, the T-odd quarks or "T-quarks", which can be produced at hadron colliders with a QCD-strength cross section. Eve…

hep-ph2006★ 102 cited

fastNLO: Fast pQCD Calculations for PDF Fits

T. Kluge, K. Rabbertz, M. Wobisch

We present a method for very fast repeated computations of higher-order cross sections in hadron-induced processes for arbitrary parton density functions. A full implementation of…

hep-ph2006★ 116 cited

Analysis of Br(B-->X_s gamma) at NNLO with a Cut on Photon Energy

Thomas Becher, Matthias Neubert

By combining a recent estimate of the total B-->X_s gamma branching fraction at O(alpha_s^2) with a detailed analysis of the effects of a cut E_gamma>1.6GeV on photon energy, a pre…

hep-ph2006★ 40 cited

Baryogenesis from an Earlier Phase Transition

Jing Shu, Tim M. P. Tait, Carlos E. M. Wagner

We explore the possibility that the observed baryon asymmetry of the universe is the result of an earlier phase transition in which an extended gauge sector breaks down into the $S…

hep-ph2006★ 1 cited

Testing the SUSY-QCD Yukawa coupling in a combined LHC/ILC analysis

A. Freitas, P. Z. Skands

In order to establish supersymmetry (SUSY) at future colliders, the identity of gauge couplings and the corresponding Yukawa couplings between gauginos, sfermions and fermions need…

hep-ph2006★ 27 cited

Gravitons and Dark Matter in Universal Extra Dimensions

Nausheen R. Shah, Carlos E. M. Wagner

Models of Universal Extra Dimensions (UED) at the TeV scale lead to the presence of Kaluza Klein (KK) excitations of the ordinary fermions and bosons of the Standard Model that may…

hep-ph2006

Small Visible Energy Scalar Top Iterative Discriminant Analysis

A. Sopczak, A. Finch, A. Freitas +2

Light scalar top quarks with a small mass difference with respect to the neutralino mass are of particular cosmological interest. This study uses an Iterative Discriminant Analysis…

hep-ph2006★ 13 cited

Low Scale Seesaw, Electron EDM and Leptogenesis in a Model with Spontaneous CP Violation

Mu-Chun Chen, K. T. Mahanthappa

Strong correlations between leptogenesis and low energy CP violating leptonic processes have been shown by us to exist in the minimal left-right symmetric model with spontaneous CP…

hep-ph2006★ 44 cited

Hadron Spectroscopy: Theory and Experiment

Jonathan L. Rosner

Many new results on hadron spectra have been appearing in the past few years thanks to improved experimental techniques and searches in new channels. New theoretical techniques inc…

hep-ph2006★ 27 cited

NOvA and T2K: The race for the neutrino mass hierarchy

Olga Mena, Hiroshi Nunokawa, Stephen Parke

The determination of the ordering of the neutrino masses (the hierarchy) is probably a crucial prerequisite to understand the origin of lepton masses and mixings and to establish t…

hep-ph2006★ 14 cited

Interference between doubly-Cabibbo-suppressed and Cabibbo-favored amplitudes in decays

Jonathan L. Rosner

A definite relative phase and amplitude exists between the doubly-Cabibbo-% suppressed amplitude for $D^0 \to \ko M^0$ and the Cabibbo-favored amplitude for $D^0 \to \ok M^0$, wher…

hep-ph2006★ 18 cited

Colliders as a simultaneous probe of supersymmetric dark matter and Terascale cosmology

Gabriela Barenboim, Joseph Lykken

Terascale supersymmetry has the potential to provide a natural explanation of the dominant dark matter component of the standard lambda-CDM cosmology. However once we impose the co…