%0 Generic %1 Matchev2009 %A Matchev, Konstantin T. %A Moortgat, Filip %A Pape, Luc %A Park, Myeonghun %D 2009 %K mt2 physics susy %T Precision sparticle spectroscopy in the inclusive same-sign dilepton channel at LHC %U http://arxiv.org/abs/0909.4300 %X The inclusive same-sign dilepton channel is already recognized as a promising discovery signature for supersymmetry in the early days of the LHC. We point out that it can also be used for precision measurements of sparticle masses after the initial discovery. As an illustration, we consider the LM6 CMS study point in minimal supergravity, where the same-sign leptons most often result from chargino decays to sneutrinos. We discuss three different techniques for determining the chargino and sneutrino masses in an inclusive manner, i.e. using only the two well measured lepton momenta, while treating all other upstream objects in the event as a single entity of total transverse momentum PT. This approach takes full advantage of the large production rates of colored superpartners, but does not rely on the poorly measured hadronic jets, and avoids any jet combinatorics problems. We discuss the anticipated precision of our methods in the early LHC data.

@misc{Matchev2009, abstract = { The inclusive same-sign dilepton channel is already recognized as a promising discovery signature for supersymmetry in the early days of the LHC. We point out that it can also be used for precision measurements of sparticle masses after the initial discovery. As an illustration, we consider the LM6 CMS study point in minimal supergravity, where the same-sign leptons most often result from chargino decays to sneutrinos. We discuss three different techniques for determining the chargino and sneutrino masses in an inclusive manner, i.e. using only the two well measured lepton momenta, while treating all other upstream objects in the event as a single entity of total transverse momentum PT. This approach takes full advantage of the large production rates of colored superpartners, but does not rely on the poorly measured hadronic jets, and avoids any jet combinatorics problems. We discuss the anticipated precision of our methods in the early LHC data. }, added-at = {2009-09-28T12:33:02.000+0200}, author = {Matchev, Konstantin T. and Moortgat, Filip and Pape, Luc and Park, Myeonghun}, biburl = {https://www.bibsonomy.org/bibtex/2f5b9b8c77e0c01d81d43d6b48337ccfa/bakhshian}, description = {Precision sparticle spectroscopy in the inclusive same-sign dilepton channel at LHC}, interhash = {252dfe805a09a4b1c2a8a9c4b53fa658}, intrahash = {f5b9b8c77e0c01d81d43d6b48337ccfa}, keywords = {mt2 physics susy}, note = {cite arxiv:0909.4300 Comment: 5 pages, 2 figures, uses revtex and axodraw}, timestamp = {2009-09-28T12:33:02.000+0200}, title = {Precision sparticle spectroscopy in the inclusive same-sign dilepton channel at LHC}, url = {http://arxiv.org/abs/0909.4300}, year = 2009 }