Results 1 to 10 of about 38,251 (85)

A perspective on Quantum Gravity Phenomenology [PDF]

, 2003
I give a brief overview of some Quantum-Gravity-Phenomenology research lines, focusing on studies of cosmic rays and gamma-ray bursts that concern the fate of Lorentz symmetry in quantum spacetime.
Amelino-Camelia, Giovanni
core   +3 more sources

Lepton flavor violation beyond the MSSM [PDF]

, 2015
Most extensions of the Standard Model lepton sector predict large lepton flavor violating rates. Given the promising experimental perspectives for lepton flavor violation in the next few years, this generic expectation might offer a powerful indirect ...
Vicente, Avelino
core   +3 more sources

Vector unparticle enhanced black holes: exact solutions and thermodynamics [PDF]

, 2010
Tensor and scalar unparticle couplings to matter have been shown to enhance gravitational interactions and provide corrections to the Schwarzschild metric and associated black hole structure.
Mureika, J. R., Spallucci, Euro
core   +3 more sources

Vectorlike Confinement at the LHC [PDF]

, 2010
We argue for the plausibility of a broad class of vectorlike confining gauge theories at the TeV scale which interact with the Standard Model predominantly via gauge interactions.
A Belyaev, A Bross, AL Scott, B Holdom, C Amsler, C Kilic, C Kilic, Can Kilic, CT Hill, DD Dietrich, DE Acosta, E Eichten, E Eichten, E Farhi, EM Riordan, F Bergsma, GD Kribs, J Kang, JD Bjorken, JD Bjorken, K Lane, L Susskind, M Bona, M Cirelli, M Golden, MA Luty, MA Luty, ME Peskin, MJ Strassler, N Arkani-Hamed, P Verkerk, PF Smith, PF Smith, R Foadi, Raman Sundrum, S Weinberg, S Weinberg, T Aaltonen, T Aaltonen, T Appelquist, T Gleisberg, T Han, T Yamagata, Takemichi Okui, TK Hemmick, TW Appelquist, VM Abazov, VM Abazov, VM Abazov, VM Abazov, VM Abazov, Z Chacko   +51 more
core   +1 more source

Confronting dark matter with the diphoton excess from a parent resonance decay [PDF]

, 2016
A diphoton excess with an invariant mass of about 750 GeV has been recently reported by both ATLAS and CMS experiments at LHC. While the simplest interpretation requires the resonant production of a 750 GeV (pseudo)scalar, here we consider an alternative
de Austri, Roberto Ruiz, De Romeri, Valentina, Kim, Jong Soo, Martin-Lozano, Victor, Rolbiecki, Krzysztof   +4 more
core   +4 more sources

On a Missed Mechanism of Dielectron Production in Nucleon-Nucleon Collisions

, 2010
We examine a new mechanism of $e^+e^-$ pair production in $NN$ collisions associated with the $NN$-decoupled dibaryon $d^\star_1$(1956) formation in the process $NN \to \gamma^\star d^\star_1$, where $\gamma^\star$ is the virtual photon which converts ...
Khrykin, Anatoliy S.
core   +1 more source

Constraining the Randall-Sundrum Model Using Diphoton Production at Hadron Colliders [PDF]

, 2001
Virtual effects of gravitons in the production of diphotons at the upgraded Tevatron and at the LHC are analysed with the idea of probing the parameter space of the Randall-Sundrum (RS) model. It is shown that this process yields stringent constraints on
Sridhar, K.
core   +2 more sources

Improved limit on quantum-spacetime modifications of Lorentz symmetry from observations of gamma-ray blazars

, 2004
In the quantum-gravity literature there has been interest in the possibility that quantum properties of spacetime might affect the energy/momentum dispersion relation.
Amelino-Camelia, Giovanni
core   +1 more source

Theory summary. Hard Probes 2012

, 2012
I provide a summary of the theoretical talks in Hard Probes 2012 together with some personal thoughts about the present and the future of the field.Comment: 8 pages.
Salgado, Carlos A.
core   +1 more source

Double screening

, 2016
Attempts to modify gravity in the infrared typically require a screening mechanism to ensure consistency with local tests of gravity. These screening mechanisms fit into three broad classes; we investigate theories which are capable of exhibiting more ...
Gratia, Pierre, Hu, Wayne, Joyce, Austin, Ribeiro, Raquel H.   +3 more
core   +1 more source