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Recently the DAMA/NaI Collaboration reported further indication of a possible modulation effect in WIMP direct detection. In this note we discuss the relevance of this result for supersymmetric theories where the neutralino is the dark…

High Energy Physics - Phenomenology · Physics 2007-05-23 Nicolao Fornengo

We begin the study of a class of string-motivated effective supergravity theories in light of current data from the CERN Large Hadron Collider (LHC). The case of heterotic string theory, in which the dilaton is stabilized via…

High Energy Physics - Phenomenology · Physics 2013-08-09 Bryan L. Kaufman , Brent D. Nelson , Mary K. Gaillard

Assuming that cosmological dark matter consists of weakly interacting massive particles, we use the recent precise measurement of cosmological parameters to predict the guaranteed rates of production of such particles in association with…

High Energy Physics - Phenomenology · Physics 2009-10-09 Andreas Birkedal , Konstantin Matchev , Maxim Perelstein

We present a supersymmetric version of a two-field relaxion model that naturalizes tuned versions of supersymmetry. This arises from a relaxion mechanism that does not depend on QCD dynamics and where the relaxion potential barrier height…

High Energy Physics - Phenomenology · Physics 2022-09-09 Jason L. Evans , Tony Gherghetta , Natsumi Nagata , Zoe Thomas

Introduction, Perspective - since particle physics beyond the SM is presently in an incoherent state, with lots of static, a long introduction is needed, including some history of the supersymmetry revolutions, physics not described by the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Gordon L. Kane

The Standard Model of particle physics has been strengthened by the recent discovery of the long-awaited Higgs boson. The standard cosmological model has met the challenge of the high precision observations in cosmology and astroparticle…

High Energy Physics - Phenomenology · Physics 2013-12-03 Jonathan Da Silva

Extrapolations of soft scalar mass parameters in supersymmetric theories can be used to explore elements of the physics scenario near the grand unification scale. We investigate the potential of this method in the lepton sector of SO(10)…

High Energy Physics - Phenomenology · Physics 2008-11-26 F. Deppisch , A. Freitas , W. Porod , P. M. Zerwas

In supersymmetric models where the superpotential mu term is generated with mu<< m_{soft} (e.g. from radiative Peccei-Quinn symmetry breaking or compactified string models with sequestration and stabilized moduli), and where the string…

High Energy Physics - Phenomenology · Physics 2016-06-22 Howard Baer , Vernon Barger , Michael Savoy , Hasan Serce

The soft bootstrap is an on-shell method to constrain the landscape of effective field theories (EFTs) of massless particles via the consistency of the low-energy S-matrix. Given assumptions on the on-shell data (particle spectra, linear…

High Energy Physics - Theory · Physics 2019-02-20 Henriette Elvang , Marios Hadjiantonis , Callum R. T. Jones , Shruti Paranjape

We study the potential of neutralino dark matter searches and SUSY particle production at colliders in the framework of the Minimal Supersymmetric Standard Model. We show the effects of a non universal gluino mass parameter. The future…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Nezri

Neutralino dark matter is studied in the context of a supergravity scheme where the scalar mass terms are not constrained by universality conditions at the grand unification scale. We analyse in detail the consequences of the relaxation of…

High Energy Physics - Phenomenology · Physics 2016-09-01 V. Berezinsky , A. Bottino , J. Ellis , N. Fornengo , G. Mignola , S. Scopel

Probing the existence of hypothetical particles beyond the Standard model often deals with extreme parameters: large energies, tiny cross-sections, large time scales, etc. Sometimes laboratory experiments can test required regions of…

High Energy Astrophysical Phenomena · Physics 2021-10-26 P. Tinyakov , M. S. Pshirkov , S. B. Popov

In the framework of linearized non-minimal supergravity (20/20), we present the embedding of the $R + R^2$ model and we analyze its field spectrum. As usual, the auxiliary fields of the Einstein theory now become propagating, giving rise to…

High Energy Physics - Theory · Physics 2015-06-23 Fotis Farakos , Alex Kehagias , Konstantinos Koutrolikos

Dark matter in variations of constrained minimal supersymmetric standard models will be discussed. Particular attention will be given to the comparison between accelerator and direct detection constraints.

High Energy Physics - Phenomenology · Physics 2009-02-18 Keith A. Olive

Dark matter in variations of constrained minimal supersymmetric standard models will be discussed. Particular attention will be given to the comparison between accelerator and direct detection constraints.

High Energy Physics - Phenomenology · Physics 2007-09-24 Keith A. Olive

We review various combinatorial applications of field theoretical and matrix model approaches to equilibrium statistical physics involving the enumeration of fixed and random lattice model configurations. We show how the structures of the…

Statistical Mechanics · Physics 2007-05-23 P. Di Francesco

We study the problem of selecting between different mechanisms of supersymmetry breaking in the Minimal Supersymmetric Standard Model using current data. We evaluate the Bayesian evidence of four supersymmetry breaking scenarios: mSUGRA,…

High Energy Physics - Phenomenology · Physics 2010-09-30 S. S. AbdusSalam , B. C. Allanach , M. J. Dolan , F. Feroz , M. P. Hobson

We introduce simplified models for enhancements in the matter power spectrum at small scales and study their implications for dark matter substructure and gravitational observables. These models capture the salient aspects of a variety of…

Cosmology and Nongalactic Astrophysics · Physics 2021-05-19 Nikita Blinov , Matthew J. Dolan , Patrick Draper , Jessie Shelton

We consider a generic scenario of spontaneous breaking of supersymmetry in the hidden sector within N=1 supersymmetric orientifold compactifications of type II string theories with D-branes that support semi-realistic chiral gauge theories.…

High Energy Physics - Theory · Physics 2010-11-19 Boris Kors , Pran Nath

An overview of supersymmetry searches is presented, covering collider experiments, direct and indirect searches for supersymmetric dark matter. Recent LHC experimental results are reviewed, and the constraints from B-meson decays are…

High Energy Physics - Phenomenology · Physics 2015-11-11 Vasiliki A. Mitsou