### Non-universal scalar masses: a signal-based analysis for the Large Hadron ColliderNon-universal scalar masses: a signal-based analysis for the Large Hadron Collider

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 Author Bhattacharya, Subhaditya ♦ Datta, AseshKrishna ♦ Mukhopadhyaya, Biswarup Source arXiv.org Content type Text File Format PDF Date of Submission 2008-04-25 Language English
 Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics Subject Keyword High Energy Physics - Phenomenology ♦ physics:hep-ph Abstract We study the possible signatures of non-universal scalar masses in supersymmetry at the Large Hadron Collider (LHC). This is done, following our recent study on gaugino non-universality, via a multichannel analysis, based largely on the ratios of event rates for different final states, aimed at minimizing irregularity in the pattern due to extraneous effects and errors. We have studied (a) squark-slepton non-universality, (b) non-universality in sfermion masses of the third family, (c) the effects of $SO(10) D$-terms in supersymmetric Grand Unified Theories. After presenting an elaborate numerical analysis of like- and opposite-sign dileptons, inclusive and hadronically quiet trileptons as well as inclusive jet final states, we point out specific features of the spectrum in each case, which can be differentiated in the above channels from the spectrum for a minimal supergravity scenario with a universal scalar mass at high scale. The event selection criteria, and the situations where the signals are sizable enough for a comparatve study, are also delineated. It is found that, with some exceptions, the trilepton channels are likely to be especially useful for this purpose. Description Reference: Phys.Rev.D78:035011,2008 Educational Use Research Learning Resource Type Article Page Count 30