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This article deals with the study of some properties of the static androtating black holes in Kalb-Ramond gravity in four dimensional spacetime.First, we discuss the action of the corresponding theory and the static blackhole metric. Then we investigate the light sphere for the static black hole byusing the Hamiltonian formalism and the corresponding linear radius of theshadow, angular velocity and Lyapunov exponent. For the rotating black hole, wediscuss the horizon structure. Moreover, we study the effective potential todiscuss the structure of null sphere and unstable circular null orbits aroundthe rotating black hole. The properties such as energy emission rate anddistortion are calculated and analyzed by using the numerical data for theshadows calculated by appropriately chosen parametric values for two differentangular locations of the observer off the equatorial plane. We also obtain theconstraints on the black hole parameters by comparing the shadow sizes of theblack hole in Kalb-Ramond gravity and the supermassive black holes M87* and SgrA*. Finally, we investigate the effect of mass, energy, angular momentum andthe black hole parameters on the center of mass energy of two collidingparticles that are accelerated in the vicinity of the black hole.

Rotating Black Hole in Kalb-Ramond Gravity: Constraining Parameters by Comparison with EHT Observations of Sgr A* and M87*