SUSY signals with small and large trilinear couplings at the LHC 7 TeV runs and neutralino dark matter

Details SUSY signals with small and large trilinear couplings at the LHC 7 TeV runs and neutralino dark matter SUSY signals with small and large trilinear couplings at the LHC 7 TeV runs and neutralino dark matter

2011-04-02

arxiv.org/abs/1104.0333v3

Phys. Rev. D83:115025,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, 4 figures, references added, minor changes in text and figures, conclusions unchanged

Scientific paper

10.1103/PhysRevD.83.115025

We propose the signal $1b+1l+N_j+\etslash$ along with appropriate selection criteria for the LHC 7 TeV run, where the number of jets $(N_j)$ is $\ge$ 2 or 4. These signals can complement the canonical $Jets + \etslash$ signature since they are sensitive to the trilinear soft breaking parameter $(A_0)$ and low values of the parameter tan$\beta$ in the minimal supergravity (mSUGRA) model. A large region of this mSUGRA parameter space within the reach of the ongoing experiments at the LHC is disfavoured by the bound on the lightest Higgs boson mass ($m_h \ge 114.4 $ GeV) unless $A_0$ has moderate to large negative values. Interestingly this parameter space with $A_0 \ne 0$ is also consistent with the observed dark matter relic density. A natural consequence of large $A_0$ is the existence of a light top squark ($\lstop$). The proposed signals primarily stem from direct $\lstop \lstop^*$ production and/or $\tilde g \ra \tilde t_{1} t $, if all squark-gluino events are considered. A thorough analysis of the signals and the corresponding backgrounds are presented using the event generator Pythia. We finally compare the signal size for $A_0 = 0$ and $A_0 \ne 0$.

Affiliated with

Also associated with

No associations

Rating

SUSY signals with small and large trilinear couplings at the LHC 7 TeV runs and neutralino dark matter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with SUSY signals with small and large trilinear couplings at the LHC 7 TeV runs and neutralino dark matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SUSY signals with small and large trilinear couplings at the LHC 7 TeV runs and neutralino dark matter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-335104