Artículos de revistas
Search for dark photons from supersymmetric hidden valleys
Fecha
2009-08-17Registro en:
Physical Review Letters, v. 103, n. 8, 2009.
0031-9007
1079-7114
10.1103/PhysRevLett.103.081802
2-s2.0-68949086640
Autor
Universidad de Buenos Aires
Centro Brasileiro de Pesquisas Físicas
Universidade do Estado do Rio de Janeiro (UERJ)
Universidade Federal do ABC (UFABC)
Universidade Estadual Paulista (UNESP)
University of Alberta
University of Science and Technology of China
Universidad de Los Andes
Faculty of Mathematics and Physics
Czech Technical University in Prague
Academy of Sciences of the Czech Republic
Universidad San Francisco de Quito
CNRS/IN2P3
Institut National Polytechnique de Grenoble
IN2P3/CNRS
Universités Paris VI and VII
SPP
RWTH Aachen University
Universität Bonn
Universität Freiburg
Georg-August-Universität Göttingen
Universität Mainz
Ludwig-Maximilians-Universität München
University of Wuppertal
Panjab University
Delhi University
Tata Institute of Fundamental Research
University College Dublin
Korea University
SungKyunKwan University
CINVESTAV
NIKHEF
Joint Institute for Nuclear Research
Institute for Theoretical and Experimental Physics
Moscow State University
Institute for High Energy Physics
Petersburg Nuclear Physics Institute
Stockholm University
Lancaster University
Imperial College
University of Manchester
University of Arizona
California State University
University of California
Florida State University
Fermi National Accelerator Laboratory
University of Illinois at Chicago
Northern Illinois University
Northwestern University
Indiana University
University of Notre Dame
Purdue University Calumet
Iowa State University
University of Kansas
Kansas State University
Louisiana Tech University
University of Maryland
Boston University
Northeastern University
University of Michigan
Michigan State University
University of Mississippi
University of Nebraska
Princeton University
State University of New York
Columbia University
University of Rochester
Brookhaven National Laboratory
Langston University
University of Oklahoma
Oklahoma State University
Brown University
University of Texas
Southern Methodist University
Rice University
University of Virginia
University of Washington
Institución
Resumen
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. © 2009 The American Physical Society.