Double parton scattering in [Formula presented] collisions at [Formula presented]

Published

Journal Article

A strong signal for double parton (DP) scattering is observed in a [Formula presented] sample of [Formula presented] data from the CDF experiment at the Fermilab Tevatron. In DP events, two separate hard scatterings take place in a single [Formula presented] collision. We isolate a large sample of data [Formula presented] of which 53% are found to be DP. The process-independent parameter of double parton scattering, [Formula presented] is obtained without reference to theoretical calculations by comparing observed DP events to events with hard scatterings in separate [Formula presented] collisions. The result [Formula presented] represents a significant improvement over previous measurements, and is used to constrain simple models of parton spatial density. The Feynman [Formula presented] dependence of [Formula presented] is investigated and none is apparent. Further, no evidence is found for kinematic correlations between the two scatterings in DP events. © 1997 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Abe, F; Akimoto, H; Akopian, A; Albrow, MG; Amendolia, SR; Amidei, D; Antos, J; Aota, S; Apollinari, G; Asakawa, T; Ashmanskas, W; Atac, M; Azfar, F; Azzi-Bacchetta, P; Bacchetta, N; Badgett, W; Bagdasarov, S; Bailey, MW; Bao, J; de Barbaro, P; Barbaro-Galtieri, A; Barnes, VE; Barnett, BA; Barone, M; Barzi, E; Bauer, G; Baumann, T; Bedeschi, F; Behrends, S; Belforte, S; Bellettini, G; Bellinger, J; Benjamin, D; Benlloch, J; Bensinger, J; Benton, D; Beretvas, A; Berge, JP; Berryhill, J; Bertolucci, S; Bevensee, B; Bhatti, A; Biery, K; Binkley, M; Bisello, D; Blair, RE; Blocker, C; Bodek, A; Bokhari, W; Bolognesi, V; Bolla, G; Bortoletto, D; Boudreau, J; Breccia, L; Bromberg, C; Bruner, N; Buckley-Geer, E; Budd, HS; Burkett, K; Busetto, G; Byon-Wagner, A; Byrum, KL; Cammerata, J; Campagnari, C; Campbell, M; Caner, A; Carithers, W; Carlsmith, D; Castro, A; Cauz, D; Cen, Y; Cervelli, F; Chang, PS; Chang, PT; Chao, HY; Chapman, J; Cheng, MT; Chiarelli, G; Chikamatsu, T; Chiou, CN; Christofek, L; Cihangir, S; Clark, AG; Cobal, M; Cocca, E; Contreras, M; Conway, J; Cooper, J; Cordelli, M; Couyoumtzelis, C; Crane, D; Cronin-Hennessy, D; Culbertson, R; Daniels, T; DeJongh, F; Delchamps, S; Dell'Agnello, S; Dell'Orso, M; Demina, R; Demortier, L

Published Date

  • January 1, 1997

Published In

Volume / Issue

  • 56 / 7

Start / End Page

  • 3811 - 3832

Electronic International Standard Serial Number (EISSN)

  • 1550-2368

International Standard Serial Number (ISSN)

  • 1550-7998

Digital Object Identifier (DOI)

  • 10.1103/PhysRevD.56.3811

Citation Source

  • Scopus