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Sneutrino-induced like sign dilepton signal with conserved R parity

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Sneutrino-induced like sign dilepton signal with conserved R parity

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Kolb, St.; Hirsch, Martin; Klapdor-Kleingrothaus, H.V.; Panella, Orlando

Aquest document és un/a article, creat/da en: 2001

Lepton number violation could be manifest in the sneutrino sector of supersymmetric extensions of the standard model with conserved R parity. Then sneutrinos decay partly into the 'wrong sign charged lepton' final state, if kinematically accessible. In sneutrino pair production or associated single sneutrino production associated single sneutrino production, the signal then is a like sign dilepton final state. Under favorable circumstances, such a signal could be visible at the CERN LHC or a next generation linear collider for a relative sneutrino mass splitting of order O(0.001) and sneutrino width of order O(1 GeV). On the other hand, the like sign dilepton event rate at the Fermilab Tevatron is probably too small to be observable.

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