Measurement of the cross section for production of two isolated prompt photons in pp-bar collisions at sqrt s =1.8 TeV. Academic Article uri icon

abstract

  • We present measurements from events with two isolated prompt photons in pp collisions at s =1.8 TeV. The differential cross section, measured as a function of transverse momentum (PT) of each photon, is about 3 times what next-to-leading-order QCD calculations predict. The cross section for photons with PT in the range 10-19 GeV is 8627(stat)-23+32(syst) pb. We also study the correlation between the two photons in both azimuthal angle and PT. The magnitude of the vector sum of the transverse momenta of both photons, KT, has a mean value of KT=5.11.1 GeV. 1993 The American Physical Society.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Abe, F., Albrow, M., Amidei, D., Anway-Wiese, C., Apollinari, G., Atac, M., ... Cobal, M.

citation count

  • 31

complete list of authors

  • Abe, F||Albrow, M||Amidei, D||Anway-Wiese, C||Apollinari, G||Atac, M||Auchincloss, P||Azzi, P||Baden, AR||Bacchetta, N||Badgett, W||Bailey, MW||Bamberger, A||Barbaro-Galtieri, A||Barnes, VE||Barnett, BA||Bauer, G||Baumann, T||Bedeschi, F||Behrends, S||Belforte, S||Bellettini, G||Bellinger, J||Benjamin, D||Benlloch, J||Bensinger, J||Beretvas, A||Berge, JP||Bertolucci, S||Biery, K||Bhadra, S||Binkley, M||Bisello, D||Blair, R||Blocker, C||Bodek, A||Bolognesi, V||Booth, AW||Boswell, C||Brandenburg, G||Brown, D||Buckley-Geer, E||Budd, HS||Busetto, G||Byon-Wagner, A||Byrum, KL||Campagnari, C||Campbell, M||Caner, A||Carey, R||Carithers, W||Carlsmith, D||Carroll, JT||Cashmore, R||Castro, A||Cervelli, F||Chadwick, K||Chapman, J||Chiarelli, G||Chinowsky, W||Cihangir, S||Clark, AG||Cobal, M

publication date

  • April 1993