Search for Dark Photons from Supersymmetric Hidden Valleys

Journal Article · Fri Aug 21 04:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.081802· OSTI ID:21364615

Abazov, V M; Alexeev, G D; Kharzheev, Y N; Malyshev, V L; Tokmenin, V V; Vertogradov, L S; Yatsunenko, Y A ^[1]; Abbott, B; Gutierrez, P; Hossain, S; Jain, S; Rominsky, M; Severini, H; Skubic, P; Strauss, M ^[2]; Abolins, M; Benitez, J A; Brock, R; Edmunds, D; Hall, I ^[3]

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1. Joint Institute for Nuclear Research, Dubna (Russian Federation)
2. University of Oklahoma, Norman, Oklahoma 73019 (United States)
3. Michigan State University, East Lansing, Michigan 48824 (United States)

We search for a new light gauge boson, a dark photon, with the D0 experiment. In the model we consider, supersymmetric partners are pair produced and cascade to the lightest neutralinos that can decay into the hidden sector state plus either a photon or a dark photon. The dark photon decays through its mixing with a photon into fermion pairs. We therefore investigate a previously unexplored final state that contains a photon, two spatially close leptons, and large missing transverse energy. We do not observe any evidence for dark photons and set a limit on their production.

• OSTI ID: 21364615
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 8 Vol. 103; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
DECAY
ELEMENTARY PARTICLES
ENERGY
FERMIONS
INTERACTIONS
KINETIC ENERGY
LEPTONS
MASSLESS PARTICLES
PAIR PRODUCTION
PARTICLE DECAY
PARTICLE PRODUCTION
PHOTONS
SUPERSYMMETRY
SYMMETRY
TRANSVERSE ENERGY