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Related papers: SUSY Flavour at LHC7

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The current 7 TeV run of the LHC experiment shall be able to probe gluino and squark masses up to values larger than 1 TeV. Assuming that hints for SUSY are found in the jets plus missing energy channel by the end of a 5 fb$^{-1}$ run, we…

High Energy Physics - Phenomenology · Physics 2012-03-14 L. Calibbi , R. N. Hodgkinson , J. Jones-Perez , A. Masiero , O. Vives

We study the effects of squark generation mixing on squark and gluino production and decays at LHC in the Minimal Supersymmetric Standard Model (MSSM) with focus on the mixing between second and third generation squarks. Taking into account…

High Energy Physics - Phenomenology · Physics 2013-08-13 K. Hidaka , A. Bartl , H. Eberl , E. Ginina , B. Herrmann , W. Majerotto , W. Porod

We consider scenarios with large flavour violating entries in the squark mass matrices focusing on the mixing between second and third generation squarks. These entries govern both, flavour violating low energy observables on the one hand…

High Energy Physics - Phenomenology · Physics 2009-09-28 Tobias Hurth , Werner Porod

We study the implications of LHC searches on SUSY particle spectra using flat scans of the 19-parameter pMSSM phase space. We apply constraints from flavour physics, g_mu-2, dark matter and earlier LEP and Tevatron searches. The sensitivity…

High Energy Physics - Phenomenology · Physics 2012-01-10 A. Arbey , M. Battaglia , F. Mahmoudi

We revisit the phenomenology of the Constrained MSSM with right-handed neutrinos (CMSSMRN). A supersymmetric seesaw mechanism, generating neutrino masses and sizable lepton flavour violating (LFV) entries is assumed to be operative. In this…

High Energy Physics - Phenomenology · Physics 2009-11-10 A. Masiero , S. Profumo , S. K. Vempati , C. E. Yaguna

We investigate the constraints on the flavour violating parameters from the decay B --> X_s gamma, taking into account the interplay of the various sources of flavour violation in the unconstrained MSSM. We present a systematic leading…

High Energy Physics - Phenomenology · Physics 2011-01-05 Thomas Besmer , Christoph Greub , Tobias Hurth

The ATLAS and CMS experiments at the LHC have reported the observation of a possible excess of events corresponding to a new particle $h$ with mass $\sim 125$ GeV that might be the long-sought Higgs boson, or something else. Decyphering the…

High Energy Physics - Phenomenology · Physics 2015-06-04 Gianluca Blankenburg , John Ellis , Gino Isidori

We elaborate on a recently found SU(5) relation confined to the up-(s)quark flavour space, that remains immune to large quantum corrections up to the TeV scale. We investigate the possibilities opened by this new window on the GUT scale in…

High Energy Physics - Phenomenology · Physics 2015-04-29 Sylvain Fichet , Björn Herrmann , Yannick Stoll

Motivated by the recent anomalies in $b\rightarrow s$ transitions that emerged at LHCb, we consider a model with an $L_\mu - L_\tau$ gauge symmetry and additional vector-like fermions. We find that by introducing supersymmetry the model can…

High Energy Physics - Phenomenology · Physics 2018-10-16 Luc Darmé , Kamila Kowalska , Leszek Roszkowski , Enrico Maria Sessolo

We discuss the potential of combined LHC and ILC experiments for SUSY searches in a difficult region of the parameter space, in which all sfermion masses are above the TeV scale. Precision analyses of cross sections of light chargino…

High Energy Physics - Phenomenology · Physics 2007-05-23 K. Rolbiecki , K. Desch , J. Kalinowski , G. Moortgat-Pick

We study SUSY signatures at the 7, 8 and 14 TeV LHC employing the 19-parameter, R-Parity conserving p(henomenological)MSSM, in the scenario with a neutralino LSP. Our results were obtained via a fast Monte Carlo simulation of the ATLAS SUSY…

High Energy Physics - Phenomenology · Physics 2015-03-11 M. Cahill-Rowley , J. L. Hewett , A. Ismail , T. G. Rizzo

In light of the Higgs discovery and the nonobservation of sparticles at the LHC, we revisit the SUSY induced top quark flavor changing decay into the Higgs boson. We perform a scan over the relevant SUSY parameter space by considering the…

High Energy Physics - Phenomenology · Physics 2015-06-19 Junjie Cao , Chengcheng Han , Lei Wu , Jin Min Yang , Mengchao Zhang

We derive the latest constraints on various simplified models of natural SUSY with light higgsinos, stops and gluinos, using a detailed and comprehensive reinterpretation of the most recent 13 TeV ATLAS and CMS searches with $\sim 15$…

High Energy Physics - Phenomenology · Physics 2017-09-05 Matthew R. Buckley , David Feld , Sebastian Macaluso , Angelo Monteux , David Shih

We further examine the capability of the 7 and 8 TeV LHC to explore the parameter space of the p(henomenological)MSSM with neutralino LSPs. Here we present an updated study employing all of the relevant ATLAS SUSY analyses, as well as all…

High Energy Physics - Phenomenology · Physics 2013-08-09 Matthew W. Cahill-Rowley , JoAnne L. Hewett , Ahmed Ismail , Thomas G. Rizzo

We analyze the potential of the first LHC physics run, assuming 1/fb at sqrt[s] = 7 TeV, to discover Supersymmetry (SUSY). The results are based on SUSY parameter fits following a frequentist approach. They include the experimental…

High Energy Physics - Phenomenology · Physics 2010-09-15 S. Heinemeyer

We present compounding evidence of supersymmetry (SUSY) production at the LHC, in the form of correlations between the nominal 5\fb ATLAS and CMS results for the 7 TeV 2011 run and detailed Monte Carlo collider-detector simulation of a…

High Energy Physics - Phenomenology · Physics 2012-05-15 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

In full one-loop generality and in next-to-leading order in QCD, we study rare top to Higgs boson flavour changing decay processes $t\to q h$ with $q=u,c$ quarks, in the general MSSM with R-parity conservation. Our primary goal is to search…

High Energy Physics - Phenomenology · Physics 2015-06-23 A. Dedes , M. Paraskevas , J. Rosiek , K. Suxho , K. Tamvakis

Quark flavour conserving (QFC) fermionic squark decays, such as ~t_{1,2} -> t neutralino_i, are usually assumed in squark search analyses. Here we study quark flavour violating (QFV) bosonic squark decays, such as ~u_2 -> ~u_1 h^0/Z^0,…

High Energy Physics - Phenomenology · Physics 2013-10-23 K. Hidaka , A. Bartl , H. Eberl , E. Ginina , B. Herrmann , W. Majerotto , W. Porod

The interplay of flavour and collider physics is entering a new era with the start-up of the LHC. During the past few years rare B decays and in particular b -> s gamma transitions have been extensively used and provided exciting…

High Energy Physics - Phenomenology · Physics 2010-12-01 F. Mahmoudi

The first 1/fb of LHC searches have set impressive limits on new colored particles decaying to missing energy. We address the implication of these searches for naturalness in supersymmetry (SUSY). General bottom-up considerations of natural…

High Energy Physics - Phenomenology · Physics 2015-06-03 Michele Papucci , Joshua T. Ruderman , Andreas Weiler
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