Observation of rapidity gaps in p-barp collisions at 1.8 TeV. Academic Article uri icon

abstract

  • In pp collisions at s=1.8 TeV we find jet events with a rapidity gap topology. The number of hadrons in the rapidity interval D between leading-jet cones was sampled by charged tracks with PT>400 MeV/c. We find excess trackless events beyond that expected in a smooth multiplicity distribution. In a control region outside D we see no excess. For D>0.8, the fraction of excess trackless events, consistent with estimates based on exchange of color-singlet digluons, is R(gap)=jet(gap) jet=0.00850.0012(stat)-0.0012+0.0024(syst). 1995 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., ... Cihangir, S.

citation count

  • 64

complete list of authors

  • Abe, F||Albrow, M||Amidei, D||Anway-Wiese, C||Apollinari, G||Atac, M||Auchincloss, P||Azzi, P||Bacchetta, N||Baden, AR||Badgett, W||Bailey, MW||Bamberger, A||Barbaro-Galtieri, A||Barnes, VE||Barnett, BA||Bartalini, P||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||Cen, Y||Cervelli, F||Chadwick, K||Chapman, J||Chiarelli, G||Chinowsky, W||Cihangir, S

publication date

  • February 1995