Skip to Main content Skip to Navigation
Journal articles

New exclusion limits on dark gauge forces from proton Bremsstrahlung in beam-dump data

Abstract : We re-analyze published proton beam dump data taken at the U70 accelerator at IHEP Serpukhov with the ν-calorimeter I experiment in 1989 to set mass-coupling limits for dark gauge forces. The corresponding data have been used for axion and light Higgs particle searches in Refs. \cite{Blumlein:1990ay,Blumlein:1991xh} before. More recently, limits on dark gauge forces have been derived from this data set, considering a dark photon production from π0-decay \cite{Blumlein:2011mv}. Here we determine extended mass and coupling exclusion bounds for dark gauge bosons ranging to masses mγ′ of 624 MeV at admixture parameters ε≃10−6 considering high-energy Bremsstrahlung of the U-boson off the initial proton beam and different detection mechanisms.
Complete list of metadatas

http://hal.in2p3.fr/in2p3-01069534
Contributor : Danielle Cristofol <>
Submitted on : Tuesday, September 30, 2014 - 1:00:33 PM
Last modification on : Thursday, January 18, 2018 - 1:51:12 AM

Links full text

Identifiers

Collections

Citation

J. Blümlein, J. Brunner. New exclusion limits on dark gauge forces from proton Bremsstrahlung in beam-dump data. Physics Letters B, Elsevier, 2014, 731, pp.320-326. ⟨10.1016/j.physletb.2014.02.029⟩. ⟨in2p3-01069534⟩

Share

Metrics

Record views

134