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Abstract: We investigate charged tracks signals of a supersymmetric scenario, where thelighter stop is the next-to-lightest supersymmetric particle NLSP. It isfound that such an NLSP is stable on the scale of the detector at the LHC ifone has a right-chiral sneutrino as the lightest supersymmetric particle LSP.After identifying some benchmark points in the parameter space of asupergravity scenario with non-universal scalar masses, we study a few specificclasses of signals, namely, stop pair production and gluino pair productionfollowed by each decaying into a stop and a top. It is shown that properkinematic cuts remove the backgrounds in each case, and, while a few months-worth of data is sufficient to have copious events in the first case, one mayrequire 300 $fb^{-1}$ for the other. One can also aspire to reconstruct thegluino mass, using the `visible- stable NLSP tracks.



Author: Debajyoti Choudhury, Sudhir Kumar Gupta, Biswarup Mukhopadhyaya

Source: https://arxiv.org/







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