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In supersymmetric theories where the lightest supersymmetric particle is the gravitino the next to lightest supersymmetric particle is typically a long lived charged slepton. In this paper, following our earlier proposal, we perform a…

High Energy Physics - Phenomenology · Physics 2008-11-26 Ivone F. M. Albuquerque , Gustavo Burdman , Z. Chacko

We consider supersymmetric models where the scale of supersymmetry breaking lies between 5 $\times 10^6$ GeV and 5 $\times 10^8$ GeV. In this class of theories, which includes models of gauge mediated supersymmetry breaking, the lightest…

High Energy Physics - Phenomenology · Physics 2009-11-10 I. Albuquerque , G. Burdman , Z. Chacko

Recently it has been shown that fluorescence telescopes with a large field of view can indirectly probe the scale of supersymmetry breaking. Here we show that depending on their ability to fight a large background, multi-Km3 volume neutrino…

High Energy Physics - Phenomenology · Physics 2012-10-19 Ivone Freire M. Albuquerque , Jairo Cavalcante de Souza

In the Next-to-Minimal-Supersymmetric-Standard-Model (NMSSM) the lightest supersymmetric particle (LSP) is a candidate for the dark matter (DM) in the universe. It is a mixture from the various gauginos and Higgsinos and can be bino-,…

High Energy Physics - Phenomenology · Physics 2017-09-25 C. Beskidt , W. de Boer , D. I. Kazakov , S. Wayand

We consider supersymmetric theories where the gravitino is the lightest superparticle (LSP). Assuming that the long-lived next-to-lightest superparticle (NSP) is a charged slepton, we investigate two complementary ways to prove the…

High Energy Physics - Phenomenology · Physics 2009-07-09 Wilfried Buchmuller , Koichi Hamaguchi , Michael Ratz , Tsutomu Yanagida

The experimental signatures for gauge mediated supersymmetry breaking are presented. The phenomenology associated with this class of models is distinctive since the gravitino is naturally the LSP. The next lightest supersymmetric particle…

High Energy Physics - Phenomenology · Physics 2009-10-28 Savas Dimopoulos , Michael Dine , Stuart Raby , Scott Thomas

A search for sleptons, neutralinos, charginos, sgoldstinos and heavy stable charged sleptons in the context of scenarios where the lightest supersymmetric particle is the gravitino, is presented. Data collected during 2000 with the DELPHI…

High Energy Physics - Experiment · Physics 2008-11-26 The DELPHI Collaboration , J. Abdallah

We consider theories with spontaneously broken global or local supersymmetry where the pseudo-goldstino or the gravitino is the lightest superparticle (LSP). Assuming that the long-lived next-to-lightest superparticle (NSP) is a charged…

High Energy Physics - Phenomenology · Physics 2007-05-23 Wilfried Buchmuller , Koichi Hamaguchi , Michael Ratz , Tsutomu Yanagida

An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric particle is a slepton, is presented, together…

High Energy Physics - Experiment · Physics 2010-04-08 The DELPHI Collaboration , P. Abreu

We consider a scenario where light bino is the next-to-lightest supersymmetric particle (NLSP) and gravitino/axino is the lightest superysmmetric particle (LSP). For a bino mass less than or around hundred GeV, it can be pair produced at…

High Energy Physics - Phenomenology · Physics 2021-07-14 Junmou Chen , Chengcheng Han , Jin Min Yang , Mengchao Zhang

We investigate charged tracks signals of a supersymmetric scenario, where the lighter stop is the next-to-lightest supersymmetric particle (NLSP). It is found that such an NLSP is stable on the scale of the detector at the LHC if one has a…

High Energy Physics - Phenomenology · Physics 2008-11-26 Debajyoti Choudhury , Sudhir Kumar Gupta , Biswarup Mukhopadhyaya

The axino and the gravitino are extremely weakly interacting candidates for the lightest supersymmetric particle (LSP). We demonstrate that either of them could provide the right amount of cold dark matter. Assuming that a charged slepton…

High Energy Physics - Phenomenology · Physics 2007-05-23 Frank Daniel Steffen

In this paper we propose indirect probes of the scale of supersymmetry breaking, through observations in the Extreme Universe Space Observatory onboard Japanese Experiment Module (JEM-EUSO). We consider scenarios where the lightest…

High Energy Physics - Phenomenology · Physics 2013-05-30 Ivone F. M. Albuquerque , Jairo Cavalcante de Souza

The axino and the gravitino are well-motivated candidates for the lightest supersymmetric particle (LSP) and also for cold dark matter in the Universe. Assuming that a charged slepton is the next-to-lightest supersymmetric particle (NLSP),…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Brandenburg , L. Covi , K. Hamaguchi , L. Roszkowski , F. D. Steffen

We discuss the prospects for detecting supersymmetric particles in variants of the minimal supersymmetric extension of the Standard Model (MSSM), in light of laboratory and cosmological constraints. We first assume that the lightest…

High Energy Physics - Phenomenology · Physics 2009-09-11 John Ellis , Keith A. Olive , Yudi Santoso , Vassilis C. Spanos

Neutrino telescopes with cubic kilometer volume have the potential to discover new particles. Among them are next to lightest supersymmetric (NLSPs) and next to lightest Kaluza-Klein (NLKPs) particles. Two NLSPs or NLKPs will transverse the…

High Energy Physics - Phenomenology · Physics 2010-05-28 Ivone F. M. Albuquerque , Spencer R. Klein

As suggested by some extensions of the Standard Model of particle physics, dark matter may be a super-weakly interacting lightest stable particle, while the next-to-lightest particle (NLP) is charged and meta-stable. One could test such a…

High Energy Physics - Phenomenology · Physics 2009-01-06 Shin'ichiro Ando , John F. Beacom , Stefano Profumo , David Rainwater

We analyse the direct detection of neutralino dark matter in the framework of the Next-to-Minimal Supersymmetric Standard Model. After performing a detailed analysis of the parameter space, taking into account all the available constraints…

High Energy Physics - Phenomenology · Physics 2008-11-26 D. G. Cerdeno , C. Hugonie , D. E. Lopez-Fogliani , C. Munoz , A. M. Teixeira

In SUSY models with Gauge Mediated Supersymmetry Breaking (GMSB) a gravitino is the lightest SUSY particle (LSP), while a neutralino or a slepton is the next-to-lightest (NLSP). For the pair-production of SUSY particles at the LHC large…

High Energy Physics - Experiment · Physics 2019-08-14 M. Terwort

Sleptons, neutralinos and charginos were searched for in the context of scenarios where the lightest supersymmetric particle is the gravitino. It was assumed that the stau is the next-to-lightest supersymmetric particle. Data collected with…

High Energy Physics - Experiment · Physics 2010-04-08 The DELPHI Collaboration , P. Abreu
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