ICHEP2000 Parallel Session PA-03
Hard Interactions ( High Q2 : DIS, Jet, Perturbative QCD )

Session Conveners: Eckhard E. Elsen and Alfred T. Goshaw

Email: ichep2000-pa03-conv@ichep2000.hep.sci.osaka-u.ac.jp

Abstracts submitted for this session.

PA-03a Hard Interactions (QCD JET STUDIES)

Thursday, July 27, 10:30 - 12:30 at Sakura West

• [TALK 03a-01] 10:30 (17 min + 3 min)
  Jet Production in DIS at HERA (slides)
  Joerg Gayler (DESY)
• [TALK 03a-02] 10:50 (12 min + 3 min)
  Determination of the strong coupling and the gluon density from jet (slides)
  Enrico Tassi (NIKHEF)
• [TALK 03a-03] 11:05 (12 min + 3 min)
  Jet production measurements in pbar-p collisons at sqrt(s) = 1800 GeV using the D0 detector (slides)
  Nikos Varelas (University of Illinois at Chicago)
• [TALK 03a-04] 11:20 (12 min + 3 min)
  Jet production measurements in pbar-p collisons at sqrt(s) = 630 and 1800 GeV using the D0 detector (slides)
  Bernard G Pope (Michigan State University)
• [TALK 03a-05] 11:35 (17 min + 3 min)
  Jet structure studies at LEP (slides)
  J.William Gary (University of California, Riverside)
• [TALK 03a-06] 11:55 (12 min + 3 min)
  Jet structure studies at the Tevatron (slides)
  Anwar Ahmad Bhatti (Rockfeller University)
• [TALK 03a-07] 12:10 (17 min + 3 min)
  Three jet production at next-to-leading order (slides)
  William B Kilgore (BNL)

PA-03b Hard Interactions (STRUCTURE FUNCTIONS)

Thursday, July 27, 14:00 - 15:30 at Sakura West

• [TALK 03b-01] 14:00 (17 min + 3 min)
  Proton structure function F 2 (slides)
  Kunihiro Nagano (DESY / KEK-IPNS)
• [TALK 03b-02] 14:20 (12 min + 3 min)
  Proton structure functions F 2 and F L (slides)
  Fabian Zomer (LAL-ORSAY)
• [TALK 03b-03] 14:35 (12 min + 3 min)
  Charm contributions to the proton structure function (slides)
  Ekaterini Tzamariudaki (Werner Heisenberg Institut)
• [TALK 03b-04] 14:50 (12 min + 3 min)
  CHORUS Neutrino-nucleon differention cross sections and strucutre functions (slides)
  Rolf G.C. Oldeman (NIKHEF)
• [TALK 03b-05] 15:05 (12 min + 3 min)
  Uncertainties in parton structure functions and their implications for physics (slides)
  Wu-Ki Tung (Michigan State University)
• [TALK 03b-06] 15:20 (7 min + 3 min)
  Constraints on the proton's gluon density from lepton pair production (slides)
  Edmond L Berger (Argonne National Laboratory)

PA-03c Hard Interactions (QCD COUPLINGS)

Thursday, July 27, 16:00 - 17:30 at Sakura West

• [TALK 03c-01] 16:00 (12 min + 3 min)
  Studies of the strong coupling constant (slides)
  Zoltan Trocsanyi (University of Debrecen)
• [TALK 03c-02] 16:15 (12 min + 3 min)
  Studies of b-bbar gluon and c-cbar vertices (slides)
  Toshinori Abe (Stanford Linear Accelerator Center)
• [TALK 03c-03] 16:30 (12 min + 3 min)
  Studies of b-quark fragmentation (slides)
  Vitaliano Ciulli (Scuola Normale Superiore and INFN Pisa)
• [TALK 03c-04] 16:45 (12 min + 3 min)
  Measurement of the b-quark mass (slides)
  Guenther Dissertori (CERN)
• [TALK 03c-05] 17:00 (12 min + 3 min)
  Complete renormalization group improvement - avoiding scale dependence in QCD predictions (slides)
  Chris J Maxwell (Durham University)
• [TALK 03c-06] 17:15 (12 min + 3 min)
  Recent progress in NNLO QCD (slides)
  Zvi Bern (UCLA)

PA-03d Hard Interactions (QCD EVENT SHAPE AND MULTIPLICITY STUDIES)

Friday, July 28, 9:00 - 10:30 at Sakura East

• [TALK 03d-01] 9:00 (17 min + 3 min)
  Event shape and other QCD studies at LEP (slides)
  Swagato Banerjee (LAPP, Annecy.)
• [TALK 03d-02] 9:20 (12 min + 3 min)
  Event shape and other QCD studies at HERA (slides)
  Hans-Ulrich Martyn (RWTH Aachen, I. Physics Institute)
• [TALK 03d-03] 9:35 (12 min + 3 min)
  Multiplicity studies at HERA (slides)
  Nick Brook (Bristol University)
• [TALK 03d-04] 9:50 (12 min + 3 min)
  QCD Instanton Studies (slides)
  Eddi A de Wolf (CERN)
• [TALK 03d-05] 10:15 (12 min + 3 min)
  Combined recoil and threshold resummation for hard scatttering cross sections (slides)
  Eric Laenen (NIKHEF)

PA-03e Hard Interactions (Gauge Bosons)

Friday, July 28, 11:00 - 12:30 at Sakura East

• [TALK 03e-01] 11:00 (12 min + 3 min)
  Studies of the hadronic decays of Z bosons at LEP (slides)
  Alessandro de Angelis (University of Udine)
• [TALK 03e-02] 11:15 (12 min + 3 min)
  Studies of the hadronic decays of Z bosons at SLD (slides)
  Philip N Burrows (Oxford University)
• [TALK 03e-03] 11:30 (12 min + 3 min)
  W boson production and decay studies at the Tevatron (slides)
  Suyong Choi (University of California, Riverside)
• [TALK 03e-04] 11:45 (12 min + 3 min)
  W boson production and decay studies at LEP (slides)
  Nelli Pukhaeva (CERN)
• [TALK 03e-05] 12:00 (12 min + 3 min)
  Direct photon production at colliders (slides)
  Stephen R Magill (Argonne National Laboratory)
• [TALK 03e-06] 12:15 (12 min + 3 min)
  Direct-photon, neutral pion and omega production pi- Be interactions (slides)
  Tom Ferbel (University of Rochester)