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19912026
Showing 2011 · hep-phShow all

39 papers · 2 filters

hep-ph2011★ 3 cited

A Rationale for Long-lived Quarks and Leptons at the LHC: Low Energy Flavour Theory

O. J. P. Eboli, C. A. Savoy, R. Zukanovich Funchal

In the framework of gauged flavour symmetries, new fermions in parity symmetric representations of the standard model are generically needed for the compensation of mixed anomalies…

hep-ph2011★ 1 cited

Detecting the Higgs boson(s) in LambdaSUSY

Enrico Bertuzzo, Marco Farina

We reconsider the Higgs bosons discovery potential in the LambdaSUSY framework, in which the masses of the scalar particles are increased already at tree level via a largish supers…

hep-ph2011★ 3 cited

Gluino, wino and Higgsino-like particles without supersymmetry

Tirtha Sankar Ray, Hiroshi de Sandes, Carlos Savoy

Metastable charged particles produced at the LHC can decay in the quiescent period between beam crossing in the detector leading to spectacular signals. In this paper we consider a…

hep-ph2011★ 34 cited

Three-particle templates for boosted Higgs

Leandro G. Almeida, Ozan Erdoğan, José Juknevich +3

We explore the ability of three-particle templates to distinguish color neutral objects from QCD background. This method is particularly useful to identify the standard model Higgs…

hep-ph2011★ 21 cited

Structure of Fat Jets at the Tevatron and Beyond

Leandro G. Almeida, Raz Alon, Michael Spannowsky

Boosted resonances is a highly probable and enthusiastic scenario in any process probing the electroweak scale. Such objects when decaying into jets can easily blend with the cornu…

hep-ph2011★ 4.9k cited

FastJet user manual

Matteo Cacciari, Gavin P. Salam, Gregory Soyez

FastJet is a C++ package that provides a broad range of jet finding and analysis tools. It includes efficient native implementations of all widely used 2-to-1 sequential recombinat…

hep-ph2011★ 33 cited

Combining Accelerator and Reactor Measurements of theta_13; The First Result

P. A. N. Machado, H. Minakata, H. Nunokawa +1

The lepton mixing angle theta_13, the only unknown angle in the standard three-flavor neutrino mixing scheme, is finally measured by the recent reactor and accelerator neutrino exp…

hep-ph2011★ 7 cited

Initial State: Theory Status

Javier L Albacete

I present a brief discussion of the different approaches to the study initial state effects in heavy ion collisions in view of the recent results from Pb+Pb and p+p collisions at t…

hep-ph2011★ 14 cited

The early stages of a high energy heavy ion collision

Francois Gelis

At high energy, the gluon distribution in nuclei reaches large densities and eventually saturates due to recombinations, that play an important role in heavy ion collisions at RHIC…

hep-ph2011★ 2 cited

Large Extra Dimensions and Neutrino Oscillations

P. A. N. Machado, H. Nunokawa, F. A. Pereira dos Santos +1

We consider a model where right-handed neutrinos propagate in a large compactified extra dimension, engendering Kaluza-Klein (KK) modes, while the standard model particles are rest…

hep-ph2011★ 5 cited

Theory and LHC Phenomenology of Classicalon Decays

Christophe Grojean, Rick S. Gupta

It has been recently proposed by Dvali et al that high energy scattering in non-renormalizable theories, like the higgsless Standard Model, can be unitarized by the formation of cl…

hep-ph2011★ 87 cited

Consequences of DM/antiDM Oscillations for Asymmetric WIMP Dark Matter

Marco Cirelli, Paolo Panci, Geraldine Servant +1

Assuming the existence of a primordial asymmetry in the dark sector, a scenario usually dubbed Asymmetric Dark Matter (aDM), we study the effect of oscillations between dark matter…

hep-ph2011★ 8 cited

Electroweak vector boson production at the LHC as a probe of mechanisms of diffraction

Krzysztof Golec-Biernat, Christophe Royon, Laurent Schoeffel +1

We show that the double diffractive electroweak vector boson production in the collisions at the LHC is an ideal probe of QCD based mechanisms of diffraction. Assuming the res…

hep-ph2011★ 18 cited

The Left-Right asymmetry of top quarks in associated top-charged Higgs bosons at the LHC as a probe of the tan parameter

J. Baglio, M. Beccaria, A. Djouadi +5

Many extensions of the Standard Model involve two Higgs doublet fields to break the electroweak symmetry, leading to the existence of three neutral and two charged Higgs particles.…

hep-ph2011★ 16 cited

External leg corrections in the unitarity method

Ruth Britto, Edoardo Mirabella

Unitarity cuts diverge in the channel of a single massive external fermion. We propose an off-shell continuation of the momentum that allows a finite evaluation of the unitarity cu…

hep-ph2011★ 1 cited

Quantum Fields at Finite Temperature "from tera to nano Kelvin"

Jean-Paul Blaizot

These lectures introduce techniques that are used in the description of systems of particles and fields at high temperature (or density). These methods have a broad range of physic…

hep-ph2011★ 5 cited

Testing Nonstandard Neutrino Properties with a Mössbauer Oscillation Experiment

P. A. N. Machado, H. Nunokawa, F. A. Pereira dos Santos +1

If the neutrino analogue of the Mössbauer effect, namely, recoiless emission and resonant capture of neutrinos is realized, one can study neutrino oscillations with much shorter ba…

hep-ph2011★ 31 cited

If no Higgs then what?

Adam Falkowski, Christophe Grojean, Anna Kaminska +2

In the absence of a Higgs boson, the perturbative description of the Standard Model ceases to make sense above a TeV. Heavy spin-1 fields coupled to W and Z bosons can extend the v…

hep-ph2011★ 39 cited

Initial State Radiation in Majorana Dark Matter Annihilations

Paolo Ciafaloni, Marco Cirelli, Denis Comelli +3

The cross section for a Majorana Dark Matter particle annihilating into light fermions is helicity suppressed. We show that, if the Dark Matter is the neutral Majorana component of…

hep-ph2011

Generalized parton distributions in the context of HERA measurements

Laurent SCHOEFFEL

We present the recent experimental results from deeply virtual Compton scattering (DVCS) from H1 and ZEUS experiments at HERA. Their interpretation encoded in the generalized parto…

hep-ph2011

Recent results on inclusive and exclusive diffraction at HERA

Laurent Schoeffel

Some important recent results on subnuclear diffractive phenomena obtained at HERA are reviewed and new issues in nucleon tomography are discussed.

hep-ph2011★ 5 cited

AAMQS: a non-linear QCD description of new HERA data at small-x

Paloma Quiroga-Arias, Javier L. Albacete, Nestor Armesto +2

We present a global analysis of available data on inclusive structure functions measured in electron-proton scattering at small values of Bjorken-x, including the latest data from…

hep-ph2011★ 6 cited

A precise isospin analysis of B -> Dbar(*) D(*) K decays

Vincent Poireau, Marco Zito

We present a precise isospin analysis of the B -> Dbar(*) D(*) K decays using new recent experimental measurements on these final states. The decays B -> Dbar(*) D(*) K, originatin…

hep-ph2011★ 1 cited

Quarkonium as a tool: cold nuclear matter effects

E. G. Ferreiro, F. Fleuret, J. P Lansberg +2

We discuss the quarkonium production as a tool for the study of the Quark Gluon Plasma. In particular, we concentrate on the Cold Nuclear Matter effetcs. We show that quarkonium pr…