Charged jet evolution and the underlying event in proton-antiproton collisions at 1.8 TeV Academic Article uri icon


  • The growth and development of charged particle jets produced in proton-antiproton collisions at [Formula Presented] are studied over a transverse momentum range from [Formula Presented] [Formula Presented] to [Formula Presented] [Formula Presented] A variety of leading (highest transverse momentum) charged jet observables are compared with the QCD Monte Carlo models HERWIG, ISAJET, and PYTHIA. The models describe fairly well the multiplicity distribution of charged particles within the leading charged jet, the size of the leading charged jet, the radial distribution of charged particles and transverse momentum around the leading charged jet direction, and the momentum distribution of charged particles within the leading charged jet. The direction of the leading charged particle jet in each event is used to define three regions of [Formula Presented] space. The toward region contains the leading charged particle jet, while the away region, on the average, contains the away-side jet. The transverse region is perpendicular to the plane of the hard [Formula Presented]-to-[Formula Presented] scattering and is very sensitive to the underlying event component of the QCD Monte Carlo models. HERWIG, ISAJET, and PYTHIA with their default parameters do not describe correctly all the properties of the transverse region. 2002 The American Physical Society.

published proceedings

  • Physical Review D - Particles, Fields, Gravitation and Cosmology

altmetric score

  • 3

author list (cited authors)

  • Affolder, T., Akimoto, H., Akopian, A., Albrow, M. G., Amaral, P., Amidei, D., ... DeJongh, F.

citation count

  • 148

complete list of authors

  • Affolder, T||Akimoto, H||Akopian, A||Albrow, MG||Amaral, P||Amidei, D||Anikeev, K||Antos, J||Apollinari, G||Arisawa, T||Artikov, A||Asakawa, T||Ashmanskas, W||Azfar, F||Azzi-Bacchetta, P||Bacchetta, N||Bachacou, H||Bailey, S||Barbaro, P||Barbaro-Galtieri, A||Barnes, VE||Barnett, BA||Baroiant, S||Barone, M||Bauer, G||Bedeschi, F||Belforte, S||Bell, WH||Bellettini, G||Bellinger, J||Benjamin, D||Bensinger, J||Beretvas, A||Berge, JP||Berryhill, J||Bhatti, A||Binkley, M||Bisello, D||Bishai, M||Blair, RE||Blocker, C||Bloom, K||Blumenfeld, B||Blusk, SR||Bocci, A||Bodek, A||Bokhari, W||Bolla, G||Bonushkin, Y||Bortoletto, D||Boudreau, J||Brandl, A||van den Brink, S||Bromberg, C||Brozovic, M||Brubaker, E||Bruner, N||Buckley-Geer, E||Budagov, J||Budd, HS||Burkett, K||Busetto, G||Byon-Wagner, A||Byrum, KL||Cabrera, S||Calafiura, P||Campbell, M||Carithers, W||Carlson, J||Carlsmith, D||Caskey, W||Castro, A||Cauz, D||Cerri, A||Chan, AW||Chang, PS||Chang, PT||Chapman, J||Chen, C||Chen, YC||Cheng, MT||Chertok, M||Chiarelli, G||Chirikov-Zorin, I||Chlachidze, G||Chlebana, F||Christofek, L||Chu, ML||Chung, YS||Ciobanu, CI||Clark, AG||Connolly, A||Conway, J||Cordelli, M||Cranshaw, J||Cropp, R||Culbertson, R||Dagenhart, D||D’Auria, S||DeJongh, F

publication date

  • January 2002