Detection of the V4641 Sgr in multi-TeV with HAWC

X-ray binaries have been recognized as one of the potential VHE gamma-ray emitters since the 1990s. The emission process varies across sources. Recently observations of X-ray binaries in the multi-TeV range have increased, renewing interest in this source class as cosmic-ray accelerators. With more data and better reconstruction algorithms, a new gamma-ray source spatially consistent with X-binary V4641 Sgr. has been detected in the newly released High Altitude Water Cherenkov (HAWC) Observatory data set. In this talk, I will present the preliminary analysis results of V4641 Sgr. and provide more insight into the acceleration mechanism of X-ray binaries.