Abstract
We propose a search strategy using the LHC as a photon collider to open sensitivity to scalar lepton (slepton ℓ[over ˜]) production with masses around 15 to 60GeV above that of neutralino dark matter χ[over ˜]_{1}^{0}. This region is favored by relic abundance and muon (g-2)_{μ} arguments. However, conventional searches are hindered by the irreducible diboson background. We overcome this obstruction by measuring initial state kinematics and the missing momentum four-vector in proton-tagged ultraperipheral collisions using forward detectors. We demonstrate sensitivity beyond LEP for slepton masses of up to 200GeV for 15≲Δm(ℓ[over ˜],χ[over ˜]_{1}^{0})≲60 GeV with 100 fb^{-1} of 13TeV proton collisions. We encourage the LHC collaborations to open this forward frontier for discovering new physics.
Highlights
Introduction.—Elucidating the elementary properties of dark matter (DM) is among the most urgent problems in fundamental physics
Sensitivity is hindered by an obstruction generic to all Large Hadron Collider (LHC) search strategies for invisible DM states and their mediators
[18,19,20,21,22,23,24,25,26,27,28,29,30,31,32]: the kinematics of colliding quarks and gluons are immeasurable. Without this initial state information, the missing momentum four-vector pmiss left by DM can be determined only in the plane transverse to the beam
Summary
Is one of the most motivating DM candidates [1,2,3]. A favored scenario involves scalar partners of the charged leptons (sleptons l ) being 1 to tens of GeV above the χ01 mass.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
