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We consider collider signatures of the hylogenesis --- a variant of antibaryonic dark matter model. We obtain bounds on the model parameters from results of the first LHC run. Also we suggest several new channels relevant for probing the…

High Energy Physics - Phenomenology · Physics 2015-03-05 S. V. Demidov , D. S. Gorbunov , D. V. Kirpichnikov

Dark matter scenarios are being tested at the LHC in the general-purpose experiments through promptly decaying states. In parallel, new dedicated detectors have been proposed for the LHC to probe dark matter portal theories predicting…

High Energy Physics - Experiment · Physics 2023-01-27 Vasiliki A. Mitsou

We investigate multi-lepton LHC signals arising from an extension at the grand unification scale of the standard minimal supersymmetric model (MSSM) involving right-handed neutrino superfields. In this framework neutrinos have Dirac masses…

High Energy Physics - Phenomenology · Physics 2015-06-18 Chiara Arina , Maria Eugenia Cabrera

Scalar dark energy fields that couple to the Standard Model can give rise to observable signatures at the LHC. In this work we show that $t\bar t+$missing energy and mono-jet searches are suitable probes in the limit where the dark energy…

High Energy Physics - Phenomenology · Physics 2016-11-09 Philippe Brax , Clare Burrage , Christoph Englert , Michael Spannowsky

We discuss the possible signatures at the Large Hadron Collider in models where R-parity is spontaneously broken. In the context of the minimal gauge theory for R-parity, we investigate signals with multileptons which can provide an unique…

High Energy Physics - Phenomenology · Physics 2013-12-25 Pavel Fileviez Perez , Sogee Spinner

This document outlines a set of simplified models for dark matter and its interactions with Standard Model particles. It is intended to summarize the main characteristics that these simplified models have when applied to dark matter…

High Energy Physics - Phenomenology · Physics 2016-03-24 Jalal Abdallah , Henrique Araujo , Alexandre Arbey , Adi Ashkenazi , Alexander Belyaev , Joshua Berger , Celine Boehm , Antonio Boveia , Amelia Brennan , Jim Brooke , Oliver Buchmueller , Matthew Buckley , Giorgio Busoni , Lorenzo Calibbi , Sushil Chauhan , Nadir Daci , Gavin Davies , Isabelle De Bruyn , Paul De Jong , Albert De Roeck , Kees de Vries , Daniele Del Re , Andrea De Simone , Andrea Di Simone , Caterina Doglioni , Matthew Dolan , Herbi K. Dreiner , John Ellis , Sarah Eno , Erez Etzion , Malcolm Fairbairn , Brian Feldstein , Henning Flaecher , Eric Feng , Patrick Fox , Marie-Hélène Genest , Loukas Gouskos , Johanna Gramling , Ulrich Haisch , Roni Harnik , Anthony Hibbs , Siewyan Hoh , Walter Hopkins , Valerio Ippolito , Thomas Jacques , Felix Kahlhoefer , Valentin V. Khoze , Russell Kirk , Andreas Korn , Khristian Kotov , Shuichi Kunori , Greg Landsberg , Sebastian Liem , Tongyan Lin , Steven Lowette , Robyn Lucas , Luca Malgeri , Sarah Malik , Christopher McCabe , Alaettin Serhan Mete , Enrico Morgante , Stephen Mrenna , Yu Nakahama , Dave Newbold , Karl Nordstrom , Priscilla Pani , Michele Papucci , Sophio Pataraia , Bjoern Penning , Deborah Pinna , Giacomo Polesello , Davide Racco , Emanuele Re , Antonio Walter Riotto , Thomas Rizzo , David Salek , Subir Sarkar , Steven Schramm , Patrick Skubic , Oren Slone , Juri Smirnov , Yotam Soreq , Timothy Sumner , Tim M. P. Tait , Marc Thomas , Ian Tomalin , Christopher Tunnell , Alessandro Vichi , Tomer Volansky , Neal Weiner , Stephen M. West , Monika Wielers , Steven Worm , Itay Yavin , Bryan Zaldivar , Ning Zhou , Kathryn Zurek

We investigate the prospect of searching for new physics via the novel signature of same-sign diboson + ${E\!\!/}_{T}$ at current and future LHC. We study three new physics models: (i) natural SUSY models, (ii) type-III seesaw model and…

High Energy Physics - Phenomenology · Physics 2022-03-25 Cheng-Wei Chiang , Sudip Jana , Dibyashree Sengupta

In this paper, we perform a detailed analysis on the same-sign dilepton signature in the inert doublet model. Focusing on the low dark matter mass region, we randomly scan the corresponding parameter space. Viable samples allowed by various…

High Energy Physics - Phenomenology · Physics 2021-09-01 Fa-Xin Yang , Zhi-Long Han , Yi Jin

Besides Standard Model measurements and other Beyond Standard Model studies, the ATLAS and CMS experiments at the LHC will search for Supersymmetry, one of the most attractive explanation for dark matter. The SUSY discovery potential with…

High Energy Physics - Phenomenology · Physics 2012-01-06 Vasiliki A. Mitsou

Recently proposed Little Higgs models present a viable solution to the naturalness problem of the Standard Model. An additional discrete symmetry, called T-parity, has been included in the simplest Little Higgs models to evade the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Debajyoti Choudhury , Dilip Kumar Ghosh

The existing data appears to provide hints of an underlying high scale theory. These arise from the gauge coupling unification, from the smallness of the neutrino masses, and via a non-vanishing muon anomaly. An overview of high scale…

High Energy Physics - Phenomenology · Physics 2011-01-04 Pran Nath

The problem of discriminating possible scenarios of TeV scale new physics with large missing energy signature at the Large Hadron Collider (LHC) has received some attention in the recent past. We consider the complementary, and yet…

High Energy Physics - Phenomenology · Physics 2010-10-29 Kirtiman Ghosh , Satyanarayan Mukhopadhyay , Biswarup Mukhopadhyaya

Warped Extra Dimension scenarios are a rich playground for phenomenology of heavy resonances at LHC. The Radion and the KK-graviton are inevitable signatures of this class of models. On face of the latest LHC experimental results on the…

High Energy Physics - Phenomenology · Physics 2018-04-13 Alexandra Carvalho

We investigate the connection between the conservation of R-parity in supersymmetry and the Stueckelberg mechanism for the mass generation of the B-L vector gauge boson. It is shown that with universal boundary conditions for soft terms of…

High Energy Physics - Phenomenology · Physics 2012-01-31 Daniel Feldman , Pavel Fileviez Perez , Pran Nath

We discuss the motivation and the phenomenology of models with either flat or warped extra dimensions. We describe the typical mass spectrum and discovery signatures of such models at the LHC. We also review several proposed methods for…

High Energy Physics - Phenomenology · Physics 2010-01-28 Kyoungchul Kong , Konstantin Matchev , Geraldine Servant

Based on a recent idea by Krohn and Yavin, we construct a little Higgs model with an internal parity that is not broken by anomalous Wess-Zumino-Witten terms. The model is a modification of the "minimal moose" models by Arkani-Hamed et al.…

High Energy Physics - Phenomenology · Physics 2011-04-04 A. Freitas , P. Schwaller , D. Wyler

The signatures of dark matter at the LHC commonly involve, in simplified scenarios, the production of a single particle plus large missing energy, from the undetected dark matter. However, in $Z'$-portal scenarios anomaly cancellation…

High Energy Physics - Phenomenology · Physics 2020-05-20 J. A. Aguilar-Saavedra , J. A. Casas , J. Quilis , R. Ruiz de Austri

The fate of R-parity in the context of the minimal supersymmetric standard model is a central issue which has profound implications for particle physics and cosmology. In this article we discuss the possibility of testing the mechanism…

High Energy Physics - Phenomenology · Physics 2011-11-29 Pavel Fileviez Perez , Sogee Spinner , Maike K. Trenkel

This paper proposes a new search program for dark sector parton showers at the Large Hadron Collider (LHC). These signatures arise in theories characterized by strong dynamics in a hidden sector, such as Hidden Valley models. A dark parton…

High Energy Physics - Phenomenology · Physics 2018-01-17 Timothy Cohen , Mariangela Lisanti , Hou Keong Lou , Siddharth Mishra-Sharma