Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-05-04
JHEP 1010:025,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
1+26 pages, 11 figures, 5 tables. v3: references and a few textual clarifications added. Matches journal version
Scientific paper
10.1007/JHEP10(2010)025
We explore, in a concrete example, to which extent new particle mass determinations are practicable with LHC data. Our chosen example is that of Yukawa-unified SUSY GUTs, whose viability has been recently studied for two general patterns of soft SUSY-breaking terms. We note that both patterns of SUSY spectra do not admit long decay chains, which would make it possible to determine the masses of the SUSY particles involved using endpoints or mass relations. We thus take the so-called mT2-kink method as our key strategy, since it does not rely on the presence of long decay chains. We then discuss a procedure allowing to determine the masses of the gluino, of the lightest chargino as well as of the first two neutralinos and, for the scenario where a stop is lighter than the gluino, the mass of the light stop too. Our worked example of Yukawa-unified SUSY GUTs may offer a useful playground for dealing with other theories which predict similar patterns of SUSY spectra.
Choi Kiwoon
Guadagnoli Diego
Im Sang Hui
Park Chan Beom
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