We report a search for a dark vector gauge boson U0 that couples to quarks in the decay chain Dþ ? D0pþ;D0 ? K0 S?; ? ? U0?, U0 ? pþp-. No signal is found and we set a mass-dependent limit on the baryonic fine structure constant of 10-3 - 10-2 in the U0 mass range of 290 to 520 MeV=c2. This analysis is based on a data sample of 976 fb-1 collected by the Belle experiment at the KEKB asymmetric energy eþe- collider
Revised: July 31, 2017 |
Published: November 1, 2016
Citation
Won E., I. Adachi, H. Aihara, S. Al Said, D.M. Asner, T. Aushev, and R. Ayad, et al. 2016.Search for a dark vector gauge boson decaying to pþp-.Physical Review D 94, no. 9:Article No. 092006.PNNL-SA-127415.doi:10.1103/PhysRevD.94.092006