Measuring masses of semi-invisibly decaying particle pairs produced at hadron colliders |
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| Institution: | 1. Institute of Physics, Jan Kochanowski University, PL-25406 Kielce, Poland;2. The H. Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Kraków, Poland;3. Department of Physics, Kent State University, Kent, OH 44242, USA;1. Theoretical Physics Department, Kursk State University, Radishcheva st., 33, Kursk 305000, Russia;2. Institute of Physics, Humboldt-University at Berlin, Newtonstr.15, 12489, Berlin, Germany;1. Department of Mathematics, Johns Hopkins University, USA;2. Department of Applied Mathematics & Statistics, Johns Hopkins University, USA;3. Department of Computer Science, Johns Hopkins University, USA;4. Department of Physics & Astronomy, Johns Hopkins University, USA;1. Murdoch Childrens Research Institute, Royal Childrens Hospital, Flemington Road, Parkville 3052, Melbourne, VIC, Australia;2. The Faculty of Physics, Astronomy and Applied Computer Science, Jagellonian University, Stanislawa Lojasiewicza 11, 30-348 Cracow, Poland;3. Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, 31-342 Cracow, Poland;4. Theory Group, Physics Department, CERN, CH-1211, Geneva 23, Switzerland |
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| Abstract: | We introduce a variable useful for measuring masses of particles which are pair produced at hadron colliders, where each particle decays to one particle that is directly observable and another particle whose existence can only be inferred from missing transverse momentum. This variable is closely related to the transverse mass variable commonly used for measuring the W mass at hadron colliders, and like the transverse mass our variable extracts masses in a reasonably model independent way. Without considering either backgrounds or measurement errors we consider how our variable would perform measuring the mass of selectrons in a mSUGRA SUSY model at the LHC. |
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