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We investigate the simplest gauge theory for spontaneous R-parity breaking and its testability at the LHC. This theory based on a local B-L gauge symmetry can be considered as the simplest framework for understanding the origin of the…

High Energy Physics - Phenomenology · Physics 2012-05-03 Pavel Fileviez Perez , Sogee Spinner

Within the R-parity violating minimal supersymmetric standard model (MSSM), we use a hierarchical ansatz for the lepton-number violating trilinear Yukawa couplings by relating them to the corresponding Higgs-Yukawa couplings. This ansatz…

High Energy Physics - Phenomenology · Physics 2013-05-30 M. Hanussek , J. S. Kim

Considering a third-generation squark as the lightest supersymmetric particle (LSP), we investigate R-parity violating collider signatures with bilinear LH or trilinear LQD operators that may contribute to observed neutrino masses and…

High Energy Physics - Phenomenology · Physics 2015-01-07 Eung Jin Chun , Sunghoon Jung , Hyun Min Lee , Seong Chan Park

We discuss the phenomenology of supersymmetric models in which supersymmetry breaking terms are induced by the super-Weyl anomaly. Such a scenario is envisioned to arise when supersymmetry breaking takes place in another world, i.e., on…

High Energy Physics - Phenomenology · Physics 2009-10-31 Jonathan L. Feng , Takeo Moroi

We show that a supersymmetric standard model exhibiting anomaly mediated supersymmetry breaking can generate naturally the observed neutrino mass spectrum as well mixings when we include bilinear R-parity violation interactions. In this…

High Energy Physics - Phenomenology · Physics 2009-11-10 F. de Campos , M. A. Diaz , O. J. P. Eboli , R. A. Lineros , M. B. Magro , P. G. Mercadante

We investigate signals of the lightest neutral Higgs in an R-parity violating supersymmetric model through the vector boson fusion mechanism. Assuming that R-parity is violated through lepton number, and locating regions in the parameter…

High Energy Physics - Phenomenology · Physics 2009-10-31 Anindya Datta , Partha Konar , Biswarup Mukhopadhyaya

We analyze the recent hints of lepton flavor universality violation in both charged-current and neutral-current rare decays of $B$-mesons in an $R$-parity violating supersymmetric scenario. Motivated by simplicity and minimality, we had…

High Energy Physics - Phenomenology · Physics 2020-08-05 Wolfgang Altmannshofer , P. S. Bhupal Dev , Amarjit Soni , Yicong Sui

We analyze the production of multileptons in the simplest supergravity model with bilinear violation of R parity at the Fermilab Tevatron. Despite the small R-parity violating couplings needed to generate the neutrino masses indicated by…

High Energy Physics - Phenomenology · Physics 2009-11-10 M. B. Magro , F. de Campos , O. J. P. Eboli , W. Porod , D. Restrepo , J. W. F. Valle

The Standard Model may be included within a supersymmetric theory, postulating new sparticles that differ by half-a-unit of spin from their standard model partners, and by a new quantum number called R-parity. The lightest one, usually a…

High Energy Physics - Phenomenology · Physics 2016-10-12 Pierre Fayet

The constraints on an R-parity violating supersymmetric theory arising from the recent SuperKamiokande results on atmospheric neutrinos are studied, with special reference to a scenario with bilinear R-parity violating terms. Considering…

High Energy Physics - Phenomenology · Physics 2009-10-31 Aseshkrishna Datta , Biswarup Mukhopadhyaya , Sourov Roy

We propose a new scenario for solving the tachyonic slepton mass problem of anomaly mediated supersymmetry breaking models with a non-Abelian horizontal gauge symmetry broken at the TeV scale. A specific model based on SU(3)_{H} horizontal…

High Energy Physics - Phenomenology · Physics 2009-11-10 O. C. Anoka , K. S. Babu , I. Gogoladze

We consider a scenario inspired by natural supersymmetry, where neutrino data is explained within a low-scale seesaw scenario. We extend the Minimal Supersymmetric Standard Model by adding light right-handed neutrinos and their…

High Energy Physics - Phenomenology · Physics 2017-10-25 Nhell Cerna-Velazco , Thomas Faber , Joel Jones-Perez , Werner Porod

The inclusion of trilinear R-parity violating couplings in a supersymmetric theory, has monumental impacts on the phenomenology. Regarding LHC physics, we no longer expect events with a lot of missing transverse energy, but events with…

High Energy Physics - Phenomenology · Physics 2011-10-20 N. -E. Bomark , D. Choudhury , S. Lola , P. Osland

We study various modifications to the minimal models of gauge mediated supersymmetry breaking. We argue that, under reasonable assumptions, the structure of the messenger sector is rather restricted. We investigate the effects of possible…

High Energy Physics - Phenomenology · Physics 2014-11-17 Michael Dine , Yosef Nir , Yuri Shirman

In supersymmetric models the lightest Higgs boson may decay with a sizable branching ratio into a pair of light neutralinos. We analyze such decays within the context of the minimal supersymmetric standard model with R-parity violation,…

High Energy Physics - Phenomenology · Physics 2008-11-26 D. Aristizabal Sierra , W. Porod , D. Restrepo , Carlos E. Yaguna

Anomaly mediation of supersymmetry breaking solves the supersymmetric flavor problem thanks to its ultraviolet-insensitivity. However, it suffers from two problems: sleptons have negative masses-squared, and there are likely bulk moduli…

High Energy Physics - Phenomenology · Physics 2009-11-07 Roni Harnik , Hitoshi Murayama , Aaron Pierce

We study the role of a very general type of flavor symmetry in controlling the strength of R-parity violation in supersymmetric models. We assume that only leptons are charged under a global symmetry whose breaking induces lepton number…

High Energy Physics - Phenomenology · Physics 2013-05-29 Gautam Bhattacharyya , Heinrich Päs , Daniel Pidt

We investigate multilepton LHC signals arising from electroweak processes involving sleptons. We consider the framework of general gauge mediated supersymmetry breaking, focusing on models where the low mass region of the superpartner…

High Energy Physics - Phenomenology · Physics 2014-02-25 Jorgen D'Hondt , Karen De Causmaecker , Benjamin Fuks , Alberto Mariotti , Kentarou Mawatari , Christoffer Petersson , Diego Redigolo

We propose the minimal (Least) version of the Supersymmetric Standard Model which can solve the hierarchy problem in the same way as the so-called Minimal Supersymmetric Standard Model (MSSM) and presents solutions to some of its problems.…

High Energy Physics - Phenomenology · Physics 2013-05-30 Antonio Delgado , Mariano Quiros

We propose an supersymmetric explanation of the diphoton excess in the Minimal Supersymmetric Standard Model with the leptonic R-parity violation. Where the sneutrino serves as the 750 GeV resonance and produced through quark anti-quark…

High Energy Physics - Phenomenology · Physics 2016-05-23 Ran Ding , Li Huang , Tianjun Li , Bin Zhu