Results 1 to 10 of about 38,653 (67)

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

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

Gravitational waves at aLIGO and vacuum stability with a scalar singlet extension of the Standard Model [PDF]

, 2017
A new gauge singlet scalar field can undergo a strongly first-order phase transition (PT) leading to gravitational waves (GW) potentially observable at aLIGO and simultaneously stabilize the electroweak vacuum.
Balazs, Csaba, Fowlie, Andrew, Mazumdar, Anupam, White, Graham   +3 more
core   +2 more sources

R^2 Dark Matter [PDF]

, 2010
There is a non-trivial four-derivative extension of the gravitational spectrum that is free of ghosts and phenomenologically viable. It is the so called $R^2$-gravity since it is defined by the only addition of a term proportional to the square of the ...
Achard P, Cembranos J A R, Cembranos J A R, Cembranos J A R, Cembranos J A R, Cembranos J A R, Cembranos J A R, Cembranos J A R, Cembranos J A R, Cembranos J A R, Cembranos J A R, Cembranos J A R, Fierz M, Heinemeyer S, I Y Aref'eva, ILC Collaboration, Jose A R Cembranos, Juste A   +17 more
core   +3 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

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

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

TASI 2009 Lectures: Searching for Unexpected Physics at the LHC [PDF]

, 2010
These TASI lectures consider low mass hidden sectors from Hidden Valleys, Quirks and Unparticles. We show how each corresponds to a different limit of the same class of models: hidden sectors with non-abelian gauge groups with mass gaps well below a TeV ...
Zurek, Kathryn M.
core   +1 more source