Showing 2010 · hep-phShow all

41 papers · 2 filters

hep-ph2010★ 91 cited

Heavy octets and Tevatron signals with three or four b jets

Yang Bai, Bogdan A. Dobrescu

Hypothetical color-octet particles of spin 0, pair-produced at hadron colliders through their QCD coupling, may lead to final states involving three or four b jets. We analyze kine…

hep-ph2010★ 25 cited

Identifying Dark Matter Event Topologies at the LHC

Yang Bai, Hsin-Chia Cheng

Assuming dark matter particles can be pair-produced at the LHC from cascade decays of heavy particles, we investigate strategies to identify the event topologies based on the kinem…

hep-ph2010★ 2 cited

New Perspectives for QCD Physics at the LHC

Stanley J. Brodsky

I review a number of topics where conventional wisdom relevant to hadron physics at the LHC has been challenged. For example, the initial-state and final-state interactions of the…

hep-ph2010★ 366 cited

Boosted objects: a probe of beyond the Standard Model physics

A. Abdesselam, E. Bergeaas Kuutmann, U. Bitenc +59

We present the report of the hadronic working group of the BOOST2010 workshop held at the University of Oxford in June 2010. The first part contains a review of the potential of ha…

hep-ph2010★ 3 cited

Naturalness from runaways in direct mediation

Sakura Schafer-Nameki, Carlos Tamarit, Gonzalo Torroba

Postulating that the NMSSM singlet is a meson of a microscopic confining theory opens up new model-building possibilities. Based on this, we construct calculable models of direct m…

hep-ph2010★ 130 cited

Direct Probes of Linearly Polarized Gluons inside Unpolarized Hadrons

Daniel Boer, Stanley J. Brodsky, Piet J. Mulders +1

We show that linearly polarized gluons inside unpolarized hadrons can be directly probed in jet or heavy quark pair production in electron-hadron collisions. We discuss the simples…

hep-ph2010

Novel QCD Phenomenology

Stanley J. Brodsky

I review a number of topics where conventional wisdom in hadron physics has been challenged. For example, hadrons can be produced at large transverse momentum directly within a har…

hep-ph2010★ 1.8k cited

Heavy quarkonium: progress, puzzles, and opportunities

N. Brambilla, S. Eidelman, B. K. Heltsley +64

A golden age for heavy quarkonium physics dawned a decade ago, initiated by the confluence of exciting advances in quantum chromodynamics (QCD) and an explosion of related experime…

hep-ph2010★ 97 cited

All tree-level amplitudes in massless QCD

Lance J. Dixon, Johannes M. Henn, Jan Plefka +1

We derive compact analytical formulae for all tree-level color-ordered gauge theory amplitudes involving any number of external gluons and up to three massless quark-anti-quark pai…

hep-ph2010★ 32 cited

Global fits of the Minimal Universal Extra Dimensions scenario

Gianfranco Bertone, Kyoungchul Kong, Roberto Ruiz de Austri +1

In theories with Universal Extra-Dimensions (UED), the gamma_1 particle, first excited state of the hypercharge gauge boson, provides an excellent Dark Matter (DM) candidate. Here…

hep-ph2010★ 34 cited

Nearly Supersymmetric Dark Atoms

Siavosh R. Behbahani, Martin Jankowiak, Tomas Rube +1

Theories of dark matter that support bound states are an intriguing possibility for the identity of the missing mass of the Universe. This article proposes a class of models of sup…

hep-ph2010★ 15 cited

Single-sector supersymmetry breaking, chirality, and unification

Siavosh R. Behbahani, Nathaniel Craig, Gonzalo Torroba

Calculable single-sector models provide an elegant framework for generating the flavor textures via compositeness, breaking supersymmetry, and explaining the electroweak scale. Suc…

hep-ph2010★ 84 cited

Supersymmetry Without Prejudice at the LHC

John A. Conley, James S. Gainer, JoAnne L. Hewett +2

The discovery and exploration of Supersymmetry in a model-independent fashion will be a daunting task due to the large number of soft-breaking parameters in the MSSM. In this paper…

hep-ph2010★ 249 cited

Precise Predictions for W + 4 Jet Production at the Large Hadron Collider

C. F. Berger, Z. Bern, L. J. Dixon +6

We present the first next-to-leading order QCD results for W + 4-jet production at hadron colliders. Total cross sections, as well as distributions in the jet transverse momenta an…

hep-ph2010★ 43 cited

The hbar Expansion in Quantum Field Theory

Stanley J. Brodsky, Paul Hoyer

We show how expansions in powers of Planck's constant hbar = h/2πcan give new insights into perturbative and nonperturbative properties of quantum field theories. Since hbar is a f…

hep-ph2010★ 12 cited

Cosmic Ray Anomalies from the MSSM?

R. C. Cotta, J. A. Conley, J. S. Gainer +2

The recent positron excess in cosmic rays (CR) observed by the PAMELA satellite may be a signal for dark matter (DM) annihilation. When these measurements are combined with those f…

hep-ph2010★ 200 cited

Discovering New Light States at Neutrino Experiments

Rouven Essig, Roni Harnik, Jared Kaplan +1

Experiments designed to measure neutrino oscillations also provide major opportunities for discovering very weakly coupled states. In order to produce neutrinos, experiments such a…

hep-ph2010★ 29 cited

It's On: Early Interpretations of ATLAS Results in Jets and Missing Energy Searches

Daniele S. M. Alves, Eder Izaguirre, Jay G. Wacker

The first search for supersymmetry from ATLAS with 70/nb of integrated luminosity extends the Tevatron' s reach for colored particles that decay into jets plus missing transverse e…

hep-ph2010★ 17 cited

Lorentz Violation in Warped Extra Dimensions

Thomas G. Rizzo

Higher dimensional theories which address some of the problematic issues of the Standard Model(SM) naturally involve some form of -dimensional Lorentz invariance violation (…

hep-ph2010★ 61 cited

Electron in a transverse harmonic cavity

H. Honkanen, P. Maris, J. P. Vary +1

We employ Hamiltonian light-front quantum field theory in a basis function approach to solve the non-perturbative problem of an electron in a strong scalar transverse confining pot…

hep-ph2010★ 21 cited

Emergent Photons and Gravitons:The Problem of Vacuum Structure

J. D. Bjorken

We discuss vacuum condensates associated with emergent QED and with torsion, as well as the possible role of the Kodama wave function in quantum cosmology.

hep-ph2010★ 4 cited

The AdS/QCD Correspondence and Exclusive Processes

Stanley J. Brodsky, Guy F. de Téramond, Alexandre Deur

The AdS/CFT correspondence between theories in AdS space and conformal field theories in physical space-time provides an analytic, semi-classical, color-confining model for strongl…

hep-ph2010

Higher-twist contributions to large pT hadron production in hadronic collisions

Francois Arleo, Stanley J. Brodsky, Dae Sung Hwang +1

The scaling behavior of large-pT hadron production in hadronic collisions is investigated. A significant deviation from the NLO QCD predictions is reported, especially at high valu…

hep-ph2010★ 21 cited

Vector Boson + Jets with BlackHat and Sherpa

C. F. Berger, Z. Bern, L. J. Dixon +6

We review recent NLO QCD results for W,Z + 3-jet production at hadron colliders, computed using BlackHat and SHERPA. We also include some new results for Z + 3-jet production at th…