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We report measurements of the beam spin asymmetry in Deeply Virtual ComptonScattering (DVCS) at an electron beam energy of 4.8 GeV using the CLAS detectorat the Thomas Jefferson National Accelerator Facility. The DVCS beam spinasymmetry has been measured in a wide range of kinematics, 1(GeV/c)$^2$$<Q^2<2.8$(GeV/c)$^2$, $0.12<x_B<0.48$, and 0.1 (GeV/c)$^2$$<-t<0.8$(GeV/c)$^2$, using the reaction \pEpX. The number ofH$(e,e^{\prime}\gamma p)$ and H$(e,e^{\prime}\pi^0 p)$ events are separated ineach $(Q^2,x_B,t)$ bin by a fit to the line shape of the H$(e,e^{\prime}p)X$$M_x^2$ distribution. The validity of the method was studied in detail usingexperimental and simulated data. It was shown, that with the achieved missingmass squared resolution and the available statistics, the separation of DVCS-BHand $\pi^0$ events can reliably be done with less than 5% uncertainty. The$Q^2$- and $t$-dependences of the $\sin\phi$ moments of the asymmetry areextracted and compared with theoretical calculations.

Beam Spin Asymmetries in DVCS with CLAS at 4 .8 GeV