A high-Q2 measurement of the photon structure function F2γ

Saroj Kumar Sahu,S. Ebara,T. Nozaki,S. Behari,H. Fujimoto,Satoru Kobayashi,A. Murakami,M. Yang,S. Matsumoto,K. Abe,Y. Fujii,Y. Kurihara,Melissa Lee,F. Liu,A. Maki,T. Omori,H. Sagawa,Y. Sakai,Takashi Sasaki,Y. Sugimoto,Y. Takaiwa,S. Terada,P. Kirk,T. J. Wang,A. Abashian,K. Gotow,M. E. Mattson,L. E. Piilonen,K.L. Sterner,S.-K. Choi,C. Rosenfeld,L.Y. Zheng,R. Breedon,W. Ko,R. Lander,Jeff Rowe,J. R. Smith,D. Stuart,S. Kanda,S.L. Olsen,K. Ueno,R. Tanaka,F. Kajino,T. Aso,K. Miyano,Hitoshi Miyata,N. Nakajima,K. Ohkubo,M. Oyoshi,Masahiro Sato,M. Shirai,N. Takashimizu,Y. Yamashita,S. Schnetzer,J. Vinson,Arie Bodek,Bj Kim,C. Velissaris,J. S. Kang,D.Y. Kim,Kisoo Lee,S. K. Kim,S. S. Myung,D. C. Son

A high-Q2 measurement of the photon structure function F2γ

1995

Abstract The photon structure function F 2 γ has been measured at average Q 2 values of 73 and 390 GeV 2 using data collected by the AMY detector at the TRISTAN e + e − collider. F 2 γ is observed to be increasing as ln Q 2 . The x -dependence of F 2 γ , where x is the momentum fraction carried by the parton inside the photon, is also measured. The measurements are compared with several parton density models.

Keywords:

Parton
Collider
Particle physics
Detector
Photon
Photon structure function
Physics
Momentum
Nuclear physics

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