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19912026
Showing 2011 · hep-phShow all

74 papers · 2 filters

hep-ph2011★ 1 cited

Topcolor in the LHC Era

Elizabeth H. Simmons, R. Sekhar Chivukula, Baradhwaj Coleppa +2

Ongoing LHC searches for the standard model Higgs Boson in WW or ZZ decay modes strongly constrain the top-Higgs state predicted in many models with new dynamics that preferentiall…

hep-ph2011★ 45 cited

Cross Sections for Leptophobic Topcolor Z' decaying to top-antitop

Robert M. Harris, Supriya Jain

We present numerical calculations of the production cross section of a heavy Z' resonance in hadron-hadron collisions with subsequent decay into top-antitop pairs. In particular, w…

hep-ph2011★ 125 cited

Higgs and Supersymmetry

O. Buchmueller, R. Cavanaugh, A. De Roeck +12

Global frequentist fits to the CMSSM and NUHM1 using the MasterCode framework predicted m_h \simeq 119 GeV in fits incorporating the g_mu-2 constraint and \simeq 126 GeV without it…

hep-ph2011★ 402 cited

A 125 GeV SM-like Higgs in the MSSM and the rate

Marcela Carena, Stefania Gori, Nausheen R. Shah +1

We consider the possibility of a Standard Model (SM)-like Higgs in the context of the Minimal Supersymmetric Standard Model (MSSM), with a mass of about 125 GeV and with a producti…

hep-ph2011★ 91 cited

Compressed supersymmetry after 1/fb at the Large Hadron Collider

Thomas J. LeCompte, Stephen P. Martin

We study the reach of the Large Hadron Collider with 1/fb of data at sqrt{s} = 7 TeV for several classes of supersymmetric models with compressed mass spectra, using jets and missi…

hep-ph2011★ 3 cited

Sensitivity to eV-scale Neutrinos of Experiments at a Very Low Energy Neutrino Factory

Christopher D. Tunnell, John H. Cobb, Alan D. Bross

The results of LSND have yet to be confirmed at the -level. An experiment is proposed utilizing a 3 GeV muon storage ring that would allow for both disappearance and appearanc…

hep-ph2011★ 1 cited

Distinguishing among Technicolor/Warped Scenarios in Dileptons

Piyali Banerjee, Adam Martin, Veronica Sanz

Models of dynamical electroweak symmetry breaking usually include new spin-1 resonances, whose couplings and masses have to satisfy electroweak precision tests. We propose to use d…

hep-ph2011★ 6 cited

The Forward-Backward Top Asymmetry in a Singlet extension of the MSSM

Alejandro de la Puente

The CDF and D0 collaborations have recently reported a large forward-backward asymmetry in the ttbar system which deviates from the next to-leading order QCD standard model predict…

hep-ph2011★ 18 cited

Solving the Hierarchy Problem with a Light Singlet and Supersymmetric Mass Terms

Antonio Delgado, Christopher Kolda, Alejandro de la Puente

A generalization of the Next-to-Minimal Supersymmetric Model (NMSSM) is studied in which an explicit μ-term as well as a small supersymmetric mass term for the singlet superfield a…

hep-ph2011★ 5 cited

Semileptonic decays of the Higgs boson at the Tevatron

Joseph D. Lykken, Adam O. Martin, Jan-Christopher Winter

We examine the prospects for extending the Tevatron reach for a Standard Model Higgs boson by including the semileptonic Higgs boson decays h --> WW --> l nu jj for M_h >~ 2 M_W, a…

hep-ph2011★ 55 cited

Searching For Dark Matter Subhalos In the Fermi-LAT Second Source Catalog

Alexander V. Belikov, Dan Hooper, Matthew R. Buckley

The dark matter halo of the Milky Way is expected to contain an abundance of smaller subhalos. These subhalos can be dense and produce potentially observable fluxes of gamma rays.…

hep-ph2011★ 16 cited

BMSSM Higgs Bosons at the 7 TeV LHC

Marcela Carena, Eduardo Ponton, Jose Zurita

We consider the Higgs sector in extensions of the Minimal Supersymmetric Standard Model by higher-dimension operators in the superpotential and the Kähler potential, in the context…

hep-ph2011

Compatibility of global NPDF analyses of neutrino DIS and charged-lepton DIS data

K. Kovarik, I. Schienbein, F. I. Olness +5

The neutrino deep inelastic scattering (DIS) data is very interesting for global analyses of proton and nuclear parton distribution functions (PDFs) since they provide crucial info…

hep-ph2011★ 116 cited

Model-independent constraints on new physics in b --> s transitions

Wolfgang Altmannshofer, Paride Paradisi, David M. Straub

We provide a comprehensive model-independent analysis of rare decays involving the b --> s transition to put constraints on dimension-six Delta(F)=1 effective operators. The constr…

hep-ph2011★ 62 cited

Light Dark Matter and the Electroweak Phase Transition in the NMSSM

Marcela Carena, Nausheen R. Shah, Carlos E. M. Wagner

We analyze the stability of the vacuum and the electroweak phase transition in the NMSSM close to the Peccei-Quinn symmetry limit. This limit contains light Dark Matter (DM) partic…

hep-ph2011★ 3 cited

A Closer Look at the 2011 cMSSM Results from CMS

Stephen Mrenna

We present a phenomenological appraisal of the results of several searches for Supersymmetry (SUSY) performed at the LHC by the CMS collaboration and interpreted in the context of…

hep-ph2011★ 67 cited

Supersymmetry in Light of 1/fb of LHC Data

O. Buchmueller, R. Cavanaugh, A. De Roeck +10

We update previous frequentist analyses of the CMSSM and NUHM1 parameter spaces to include the public results of searches for supersymmetric signals using ~1 /fb of LHC data record…

hep-ph2011★ 2 cited

B-Meson and Neutrino Oscillation: A Unified Treatment

Boris Kayser

We present a unified treatment of the quantum mechanics of B-factory and neutrino oscillation experiments. While our approach obtains the usual phenomenological predictions for the…

hep-ph2011★ 52 cited

Light Dark Matter in the light of CRESST-II

Joachim Kopp, Thomas Schwetz, Jure Zupan

Recently the CRESST collaboration has published the long anticipated results of their direct Dark Matter (DM) detection experiment with a CaWO_4 target. The number of observed even…

hep-ph2011★ 10 cited

Non-perturbative proton stability

Adam Martin, Gerben C. Stavenga

Proton decay is a generic prediction of GUT models and is therefore an important channel to detect the existence of unification or to set limits on GUT models. Current bounds on th…

hep-ph2011★ 22 cited

Matched predictions for Higgs production via heavy-quark loops in the SM and beyond

Johan Alwall, Qiang Li, Fabio Maltoni

The main Higgs production channel at hadron colliders is gluon fusion via heavy-quark loops. We present the results of a fully exclusive simulation of gluon fusion Higgs production…

hep-ph2011★ 36 cited

B Meson Mixing in Effective Theories of Supersymmetric Higgs Bosons

Wolfgang Altmannshofer, Marcela Carena

We study a minimal flavor violating extension of the MSSM, where higher dimensional operators in the Kahler potential induce tree level non-holomorphic Higgs couplings that are con…

hep-ph2011★ 26 cited

Very Light Axigluons and the Top Asymmetry

Gordan Z. Krnjaic

We show that very light (50 - 90 GeV) axigluons with flavor-universal couplings of order g_{s}/3 may explain the anomalous top forward-backward asymmetry reported by both CDF and D…

hep-ph2011★ 13 cited

LHC Limits on the Top-Higgs in Models with Strong Top-Quark Dynamics

R. Sekhar Chivukula, Baradhwaj Coleppa, Heather E. Logan +2

LHC searches for the standard model Higgs Boson in WW or ZZ decay modes place strong constraints on the top-Higgs state predicted in many models with new dynamics preferentially af…