English
Related papers

Related papers: Probe R-parity violating stop resonance at the LHe…

200 papers

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

We consider the natural supersymmetry scenario in the framework of the R-parity conserving minimal supersymmetric standard model (called natural MSSM) and examine the observability of stop pair production at the LHC. We first scan the…

High Energy Physics - Phenomenology · Physics 2015-06-05 Junjie Cao , Chengcheng Han , Lei Wu , Jin Min Yang , Yang Zhang

The scalar partner of the top quark (the stop) is relatively light in many models of supersymmetry breaking. We study the production of stops at the Large Hadron Collider (LHC) and their subsequent decays through baryon-number violating…

High Energy Physics - Phenomenology · Physics 2011-10-11 Debajyoti Choudhury , Madhumita Datta , Manas Maity

In minimal supersymmetric standard model the R-parity violating interactions can induce anomalous top pair productions at the LHC through the t-channel process d_R \bar d_R -> t_L \bar t_L by exchanging a slepton or u-channel process d_R…

High Energy Physics - Phenomenology · Physics 2008-11-26 Peiying Li , Gongru Lu , Jin Min Yang , Huanjun Zhang

We studied the process $e^{+}e^{-} \to t\bar{c}+c\bar{t}$ in a R_{p} violating supersymmetric model with effects from both B- and L-violating interactions. The calculation shows that it is possible to either detect the R_{p} violating…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yu Zeng-Hui , Herbert. Pietschmann , Ma Wen-Gan , Han Liang , Jiang Yi

In these Lectures we review the Minimal Supersymmetric Standard Model as well as some of its extensions that include R-Parity violation. The cases of spontaneous breaking of R-Parity as well as that of explicit violation through bilinear…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jorge C. Romao

To explore the discovery possibilities of a high-energy muon-proton collider, we examine signals that could arise from direct-channel formation of supersymmetric-particle resonances through operators that do not respect R-parity.

High Energy Physics - Phenomenology · Physics 2008-11-26 Marcela Carena , Debajyoti Choudhury , Chris Quigg , Sreerup Raychaudhuri

We study the production of $(t+\bar{t}) \tilde{g}$ at the hadron colliders in an R-parity ($R_{p}$) violating supersymmetric model. This process provides us with information not only about $R_{p}$ violation, but may also help us in…

High Energy Physics - Phenomenology · Physics 2011-03-23 M. Chaichian , K. Huitu , Z. -H. Yu

We study $t \bar t$ production in R-parity violating supersymmetry. The annihilation channel $q \bar q \rightarrow t \bar t$ gets new contributions from $t$-channel exchange of squarks or sleptons. With the data from Tevatron on $t \bar t$…

High Energy Physics - Phenomenology · Physics 2009-10-28 Dilip Kumar Ghosh , Sreerup Raychaudhuri , K. Sridhar

We investigate in detail the effects of the R-parity lepton number violation in the minimal supersymmetric standard model (MSSM) on the top-quark pair production via both $e^--e^+$ and $\gamma-\gamma$ collision modes at the linear…

High Energy Physics - Phenomenology · Physics 2009-11-10 Wang Lei , Ma Wen-Gan , Hou Hong-Sheng , Zhang Ren-You , Sun Yan-Bin

In this talk, the latest results from CMS on R-parity violating Supersymmetry are reviewed. We present results using up to 20/fb of data from the 8 TeV LHC run of 2012. Interpretations of the experimental results in terms of production of…

High Energy Physics - Experiment · Physics 2015-06-16 Fedor Ratnikov

A search for pair produced scalar fermions with couplings that violate R-parity has been performed using a data sample corresponding to an integrated luminosity of 56 pb-1 at a centre-of-mass energy of sqrt{s}= 183 GeV collected with the…

High Energy Physics - Experiment · Physics 2008-11-07 The OPAL Collaboration , G. Abbiendi et al

At hadron colliders, the search for R-parity violating supersymmetry can probe scalar masses beyond what is covered by pair production processes. We evaluate the next-to-leading order SUSY-QCD corrections to the associated stop or sbottom…

High Energy Physics - Phenomenology · Physics 2011-01-27 A. Alves , O. Eboli , T. Plehn

R-parity violation in supersymmetry gives rise to many unique experimental signatures. We describe searches with the ATLAS detector for supersymmetry with R-parity violating decays. Examples include searches for resonant sneutrino decays to…

High Energy Physics - Experiment · Physics 2019-08-13 Paul Jackson

Parity violation in QCD process is studied using helicity dependent top quark pair productions at Large Hadron Collider experiment. Though no violation can be found in the standard model (SM), new physics beyond the SM predicts the…

High Energy Physics - Phenomenology · Physics 2013-05-30 Naoyuki Haba , Kunio Kaneta , Shigeki Matsumoto , Takehiro Nabeshima , Soshi Tsuno

We investigate the effects of R-parity-violating $LL\bar E$ and $LQ\bar D$ operators on the production of fermion pairs at a $\mu^+ \mu^-$ collider with high energy and luminosity. We show that comparison of angular distributions leads to…

High Energy Physics - Phenomenology · Physics 2007-05-23 Debajyoti Choudhury , Sreerup Raychaudhuri

The prospects of physics beyond the standard model in deep inelastic scattering are reviewed, emphasizing the search for contact interactions, for leptoquarks and for supersymmetry with R-parity violation. R-parity violating supersymmetry…

High Energy Physics - Phenomenology · Physics 2007-05-23 H. Spiesberger

A search, in e^+e^- collisions, for chargino, neutralino, scalar lepton and scalar quark pair-production is performed, without assuming R-parity conservation in decays, in the case that only one of the coupling constants lambda_ijk or…

High Energy Physics - Experiment · Physics 2012-08-27 L3 Collaboration

We investigate the phenomenology of the MSSM extended by a single R-parity violating coupling at the unification scale. For all R-parity violating couplings, we discuss the evolution of the particle spectra through the renormalization group…

High Energy Physics - Phenomenology · Physics 2017-12-14 Daniel Dercks , Herbi Dreiner , Manuel E. Krauss , Toby Opferkuch , Annika Reinert

In the minimal supersymmetric standard model with R-parity violation, the lepton number violating top quark interactions can contribute to the top pair production at a linear collider via tree-level u-channel squark exchange diagrams. We…

High Energy Physics - Phenomenology · Physics 2009-03-19 Xuelei Wang , Jitao Li , Suzhen Liu