Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-04-25
Phys.Rev.D78:035011,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
30 pages, 8 figures
Scientific paper
10.1103/PhysRevD.78.035011
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.
Bhattacharya Subhaditya
Datta Aseshkrishna
Mukhopadhyaya Biswarup
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