Showing 2012 · hep-phShow all

19 papers · 2 filters

hep-ph2012★ 9 cited

High Energy WW Scattering at the LHC with the Matrix Element Method

A. Freitas, J. S. Gainer

Perhaps the most important question in particle physics today is whether the boson with mass near 125 GeV discovered at the Large Hadron Collider (LHC) is the Higgs Boson of the St…

hep-ph2012★ 100 cited

Vacuum Stability and Higgs Diphoton Decays in the MSSM

Marcela Carena, Stefania Gori, Ian Low +2

Current Higgs data at the Large Hadron Collider is compatible with a SM signal at the 2 level, but the central value of the signal strength in the diphoton channel is enhanced w…

hep-ph2012★ 46 cited

Scrutinizing the Higgs Signal and Background in the Golden Channel

Yi Chen, Nhan Tran, Roberto Vega-Morales

Kinematic distributions in the decays of the newly discovered resonance to four leptons are a powerful test of the tensor structure of its couplings to electroweak gauge bosons. We…

hep-ph2012★ 66 cited

Resummation of jet-veto logarithms in hadronic processes containing jets

Xiaohui Liu, Frank Petriello

We derive a factorization theorem for production of an arbitrary number of color-singlet particles accompanied by a fixed number of jets at the LHC. The jets are defined with the s…

hep-ph2012★ 3 cited

Commentary on "Total Hadronic Cross Section Data and the Froissart-Martin Bound", by Fagundes, Menon and Silva

Martin M. Block, Francis Halzen

This Commentary on the paper "Total Hadronic Cross Section Data and the Froissart-Martin Bound", by Fagundes, Menon and Silva, to be published in Braz. J. of Phys., Vol. 42 (2012)…

hep-ph2012★ 52 cited

Can the 126 GeV boson be a pseudoscalar?

Baradhwaj Coleppa, Kunal Kumar, Heather E. Logan

We test the possibility that the newly-discovered 126 GeV boson is a pseudoscalar by examining the correlations among the loop-induced pseudoscalar decay branching fractions to $γγ…

hep-ph2012★ 73 cited

Directly Measuring the Tensor Structure of the Scalar Coupling to Gauge Bosons

Daniel Stolarski, Roberto Vega-Morales

Kinematic distributions in the decays of the newly discovered resonance to four leptons can provide a direct measurement of the tensor structure of the particle's couplings to gaug…

hep-ph2012★ 2 cited

The Lightest Massive Invisible Particles at the LHC

Andre de Gouvea, Andrew C. Kobach

The observation of new physics events with large missing transverse energy at the LHC would potentially serve as evidence for the direct production of dark matter. A crucial step t…

hep-ph2012★ 418 cited

Combining QCD and electroweak corrections to dilepton production in FEWZ

Ye Li, Frank Petriello

We combine the next-to-next-to-leading order (NNLO) QCD corrections to lepton-pair production through the Drell-Yan mechanism with the next-to-leading order (NLO) electroweak corre…

hep-ph2012★ 50 cited

New experimental evidence that the proton develops asymptotically into a black disk

Martin M. Block, Francis Halzen

Recently, the Auger group has extracted the proton-air cross section from observations of air showers produced by cosmic ray protons (and nuclei) interacting in the atmosphere and…

hep-ph2012★ 3 cited

Higher Twist in Electroproduction: Flavor Non-Singlet QCD Evolution

Michael J. Glatzmaier, Sonny Mantry, Michael J. Ramsey-Musolf

We present results for the one loop anomalous dimension matrix of flavor non-singlet twist-4 operators of lowest spin that contribute to the leading moment of the structure f…

hep-ph2012★ 137 cited

Have We Observed the Higgs (Imposter)?

Ian Low, Joseph Lykken, Gabe Shaughnessy

We interpret the new particle at the Large Hadron Collider as a CP-even scalar and investigate its electroweak quantum number. Assuming an unbroken custodial invariance as suggeste…

hep-ph2012★ 6 cited

The case for three-body decaying dark matter

Hsin-Chia Cheng, Wei-Chih Huang, Ian Low +1

Fermi-LAT has confirmed the excess in cosmic positron fraction observed by PAMELA, which could be explained by dark matter annihilating or decaying in the center of the galaxy. Mos…

hep-ph2012★ 232 cited

Implications of a Modified Higgs to Diphoton Decay Width

Marcela Carena, Ian Low, Carlos E. M. Wagner

Motivated by recent results from Higgs searches at the Large Hadron Collider, we consider possibilities to enhance the diphoton decay width of the Higgs boson over the Standard Mod…

hep-ph2012★ 15 cited

Forward hadronic scattering at 8 TeV: predictions for the LHC

Martin M. Block, Francis Halzen

The Large Hadron Collider (LHC) recently started operating at 8 TeV. In this note, we update our earlier LHC forward hadronic scattering predictions \cite{physicsreports,update7, b…

hep-ph2012★ 9 cited

Gauge-boson production with multiple jets near threshold

Xiaohui Liu, Sonny Mantry, Frank Petriello

Signatures of new physics beyond the Standard Model are often characterized by large missing transverse energy () produced in association with multiple jets. The dominant…

hep-ph2012★ 32 cited

Effects from New Colored States and the Higgs Portal on Gluon Fusion and Higgs Decays

Kunal Kumar, Roberto Vega-Morales, Felix Yu

We study effects from new colored states and the Higgs portal on gluon fusion production. We isolate possible loop contributions from new colored scalars, fermions, and vectors, in…

hep-ph2012★ 39 cited

N-Jettiness as a probe of nuclear dynamics

Zhong-Bo Kang, Sonny Mantry, Jian-Wei Qiu

We propose the use of N-jettiness (τ_N), a global event shape variable, as a probe of nuclear dynamics in lepton-nucleus collisions. It characterizes the amount of soft radiation b…

hep-ph2012★ 4 cited

"Soft" Hadronic Cross Sections Challenge Hidden Dimensions

Martin M. Block, Francis Halzen

High energy measurements of the inelastic proton-proton cross sections, at the LHC at =7 TeV and by Auger at 57 TeV, have validated previous evidence from data collected o…