Add to ORKGUpper limits for the production of new light gauge bosons in ß 0 , j and j 0 decays have been obtained with the Crystal Barrel detector. The kinematically well-constrained reactions pp ! ß 0 ß 0 P have been studied, where P j ß 0 ; j; j 0 decays through the emission of a single photon recoiling against a missing state X. X can be a long-lived weakly interacting particle or X ! . This paper gives full detail of the analysis of our previous work and extends the search to j 0 decay. No signal has been observed and branching ratio upper limits (90 % C:L:) of 6 \Theta 10 \Gamma5 have been obtained for masses of the gauge boson lying between ¸ 65 MeV and 125 MeV (ß 0 decay), 6 \Theta 10 \Gamma5 , for X masses between ¸ 200 Me...
We have searched for heavy neutral gauge bosons (Z') in p̄p collisions at s=1.8 TeV. The data were o...
A search for the rare decay of a $B^{0}$ or $B^{0}_{s}$ meson into the final state $J/\psi\gamma$ is...
Abstract The recent interest in a light gauge boson in the framework of an extra U(1) symmetry motiv...
Upper limits for the production of new light gauge bosons in π0, η and η′ decays have been obtained ...
We consider the decay Z --> gamma-X where X is a new gauge boson corresponding to an extra U'(1) gau...
A search was made for a new light gauge boson X which might be produced in pi(0) -->, gamma + X deca...
A search was made for a new light gauge boson X which might be produced in pi(0) -->, gamma + X deca...
We establish upper limits on branching fractions for B-0 decays to final states where the decay prod...
A search was made for a new light gauge boson X which might be produced in pi(0) -->, gamma + X deca...
Using J/psi radiative decays from 9.0 billion J/psi events collected by the BESIII detector, we sear...
We have searched for heavy neutral gauge bosons (Z') in dielectron and dimuon decay modes using 110 ...
We search for a light Higgs boson A(0) in the fully reconstructed decay chain of J/psi -> gamma A...
The standard model (SM) of particle physics is to date the most accurate description of fundamental ...
A search was made for a new light gauge boson X which might be produced in pi(0) -->, gamma + X deca...
We have searched for heavy neutral gauge bosons (Z') in p̄p collisions at s=1.8 TeV. The data were o...
A search for the rare decay of a $B^{0}$ or $B^{0}_{s}$ meson into the final state $J/\psi\gamma$ is...
Abstract The recent interest in a light gauge boson in the framework of an extra U(1) symmetry motiv...
Upper limits for the production of new light gauge bosons in π0, η and η′ decays have been obtained ...
We consider the decay Z --> gamma-X where X is a new gauge boson corresponding to an extra U'(1) gau...
A search was made for a new light gauge boson X which might be produced in pi(0) -->, gamma + X deca...
A search was made for a new light gauge boson X which might be produced in pi(0) -->, gamma + X deca...
We establish upper limits on branching fractions for B-0 decays to final states where the decay prod...
A search was made for a new light gauge boson X which might be produced in pi(0) -->, gamma + X deca...
Using J/psi radiative decays from 9.0 billion J/psi events collected by the BESIII detector, we sear...
We have searched for heavy neutral gauge bosons (Z') in dielectron and dimuon decay modes using 110 ...
We search for a light Higgs boson A(0) in the fully reconstructed decay chain of J/psi -> gamma A...
The standard model (SM) of particle physics is to date the most accurate description of fundamental ...
A search was made for a new light gauge boson X which might be produced in pi(0) -->, gamma + X deca...
We have searched for heavy neutral gauge bosons (Z') in p̄p collisions at s=1.8 TeV. The data were o...
A search for the rare decay of a $B^{0}$ or $B^{0}_{s}$ meson into the final state $J/\psi\gamma$ is...
Abstract The recent interest in a light gauge boson in the framework of an extra U(1) symmetry motiv...