Showing 2008 · hep-phShow all

19 papers · 2 filters

hep-ph2008★ 20 cited

On dissociation of heavy mesons in a hot quark-gluon plasma

Fabio Dominguez, Bin Wu

We compare two mechanisms for the dissociation of heavy mesons in an infinite quark-gluon plasma: dynamic Debye screening and multiple scattering. Using the uncertainty principle i…

hep-ph2008

Jet Energy Loss and Mach Cones in pQCD vs. AdS/CFT

Barbara Betz, Jorge Noronha, Miklos Gyulassy +1

We compare away-side hadron correlations with respect to tagged heavy quark jets computed within a weakly coupled pQCD and a strongly coupled AdS/CFT model. While both models featu…

hep-ph2008★ 23 cited

Heavy-quark energy loss and thermalization in a strongly coupled SYM plasma

Guillaume Beuf, Cyrille Marquet, Bo-Wen Xiao

Using the AdS/CFT correspondence, we compute the radiative energy loss of a slowly decelerating heavy quark with mass M moving through a supersymmetric Yang Mills (SYM) plasma at t…

hep-ph2008★ 74 cited

A Composite Twin Higgs Model

Puneet Batra, Z. Chacko

Twin Higgs models are economical extensions of the Standard Model that stabilize the electroweak scale. In these theories the Higgs field is a pseudo Nambu-Goldstone boson that is…

hep-ph2008★ 64 cited

TeV Scale Singlet Dark Matter

Eduardo Ponton, Lisa Randall

It is well known that stable weak scale particles are viable dark matter candidates since the annihilation cross section is naturally about the right magnitude to leave the correct…

hep-ph2008★ 2 cited

Model with Strong -violation

R. Friedberg, T. D. Lee

We extend the violating model of the paper on "Hidden symmetry of the CKM and neutrino-mapping matrices" by assuming its -violating phases and to…

hep-ph2008★ 16 cited

The theory and phenomenology of jets in nuclear collisions

Ivan Vitev, Ben-Wei Zhang, Simon Wicks

We review selected results from a recent in-depth study of jet shapes and jet cross sections in ultra-relativistic reactions with heavy nuclei at the LHC arXiv:0810.2807 [hep-ph].…

hep-ph2008★ 136 cited

A theory of jet shapes and cross sections: from hadrons to nuclei

Ivan Vitev, Simon Wicks, Ben-Wei Zhang

For jets, with great power comes great opportunity. The unprecedented center of mass energies available at the LHC open new windows on the QGP: we demonstrate that jet shape and je…

hep-ph2008★ 5 cited

Heavy-quark energy loss in pQCD and SYM plasmas

Cyrille Marquet

We consider heavy-quark energy loss and pT-broadening in a strongly-coupled N=4 Super Yang Mills (SYM) plasma, and the problem of finite-extend matter is addressed. When expressed…

hep-ph2008★ 27 cited

The Supersymmetric Higgs

Puneet Batra, Eduardo Ponton

In the Minimal Supersymmetric Standard Model (the MSSM), the electroweak symmetry is restored as supersymmetry-breaking terms are turned off. We describe a generic extension of the…

hep-ph2008★ 15 cited

The Planck Scale from Top Condensation

Yang Bai, Marcela Carena, Eduardo Ponton

We propose a scenario in which the Planck scale is dynamically linked to the electroweak scale induced by top condensation. The standard model field content, without the Higgs, is…

hep-ph2008★ 44 cited

Anomalous Conical Di-jet Correlations in pQCD vs AdS/CFT

Barbara Betz, Miklos Gyulassy, Jorge Noronha +1

We propose an identified heavy quark jet observable to discriminate between weakly coupled pQCD and strongly coupled AdS/CFT models of quark gluon plasma dynamics in ultra-relativi…

hep-ph2008★ 40 cited

Di-Jet Conical Correlations Associated with Heavy Quark Jets in anti--de Sitter Space/Conformal Field Theory Correspondence

Jorge Noronha, Miklos Gyulassy, Giorgio Torrieri

We show that far zone Mach and diffusion wake ``holograms'' produced by supersonic strings in anti--de Sitter space/conformal field theory (AdS/CFT) correspondence do not lead to o…

hep-ph2008★ 10 cited

Near Zone Hydrodynamics of AdS/CFT Jet Wakes

Jorge Noronha, Miklos Gyulassy, Giorgio Torrieri

The energy-momentum tensor of a supersonic heavy quark jet moving through a strongly-coupled SYM plasma is analyzed in terms of first-order Navier-Stokes hydrodynam…

hep-ph2008★ 2 cited

Cold Nuclear Modifications at RHIC and LHC

G. G. Barnaföldi, G. Fai, P. Lévai +2

We use recent nuclear parton distributions, among them the Hirai--Kumano--Nagai (HKN) and Eskola--Paukkunen--Salgado (EPS08) parameterizations, in our pQCD-improved parton model to…

hep-ph2008★ 14 cited

Separating hard and soft scales in hard processes in a QCD plasma

A. H. Mueller

We present a picture of hard processes in a hot plasma in terms of the hard scale part of the process, where perturbative QCD should be applicable, and the soft scale part of the p…

hep-ph2008★ 116 cited

Nuclear enhancement and suppression of diffractive structure functions at high energies

H. Kowalski, T. Lappi, C. Marquet +1

We compute diffractive structure functions for both protons and nuclei in the framework of Color Glass Condensate models with impact parameter dependence. These models have previou…

hep-ph2008★ 27 cited

Terascale Physics Opportunities at a High Statistics, High Energy Neutrino Scattering Experiment: NuSOnG

T. Adams, P. Batra, L. Bugel +33

This article presents the physics case for a new high-energy, ultra-high statistics neutrino scattering experiment, NuSOnG (Neutrino Scattering on Glass). This experiment uses a Te…

hep-ph2008★ 70 cited

Dark Matter and Electroweak Symmetry Breaking in Models with Warped Extra Dimensions

Giuliano Panico, Eduardo Ponton, Jose Santiago +1

We show that a discrete exchange symmetry can give rise to realistic dark matter candidates in models with warped extra dimensions. We show how to realize our construction in a var…