High Q² Events of H1

• The paper "Observation of Events with very High Q² in ep Collisions at HERA" (DESY 97-024)
  (gziped ps file,163 kb) is available since Feb. 24, 1997.
  It is published in Z. Phys. C74 (1997) 191.

• Figures of this paper (ps files)

  (1) -- (2) -- (3) -- (4) -- (5) -- (6) -- (7) -- (8) -- (9)

• event pictures (Candidates from neutral current sample with M = sqrt (sx) > 180 GeV and y > 0.4 )

  as ps file (each about 150 kb): event nr. 1 2 3 4 5 6 7

  as gif file: event nr. 1 2 3 4 5 6 7

• Transparencies Transparencies shown by Yves Sirois in in the DESY (19/02/97) and CERN (04/03/1997) seminar (g-ziped ps file [0.35 Mb]).

• Transparencies shown by Peter Schleper at Fermilab and SLAC (Febr. /March 97) and at the DPG-Tagung (München, 19.3.97)

• In July 1997 at the XVIII International Symposium on Lepton Photon Interactions, Hamburg, Germany,overheads were supplied by the H1 Collaboration to B Straub (Columbia University, ZEUS) who reported on High Q² results form both H1 and ZEUS.

• In August 1997 at the International Europhysics Conference on High Energy Physics, HEP97, Jerusalem, Israel, E Elsen (DESY, H1) reported on High Q² results from both H1 and ZEUS. This report also included the first report on events with large missing transverse momentum and isolated charged particles.

• At a DESY Seminar on Friday 13th (!) March 1998, both the H1 and ZEUS experiments reported on the status of their analyses of all positron-proton data taken to the end of the HERA running period in October 1997.
  G. Bernardi (Univ. of Paris) spoke on behalf of H1 and presented new High Q² results, including single and double differential neutral current cross-sections up to x=0.65 and Q2=30000 GeV² ( pdf file [0.7 Mb], g-ziped ps-file [0.5 Mb]).
  A Quadt (Univ Oxford) spoke on behalf of ZEUS.

  The H1 results were presented for the first time outside DESY by Ph Bruel (Ecole Polytechnique) at the XXXIIIrd Rencontres de Moriond session devoted to "ElectroWeak Interactions and Unified Theories" ( pdf file [0.5 Mb], g-ziped ps-file [0.2 Mb]).

• Talk at the "DIS98, 6th International Workshop on DIS and QCD", Brussels, April 4-9, 1998 given by B Heinemann (DESY) showing for the first time the new charged current results at high Q² (pdf file [0.6 Mb] g-ziped ps file [0.3 Mb])

Read the DESY information about "recent results from HERA" (of Febr. 19, 1997).

You may be also interested in looking to the data from the ZEUS Collaboration on this subject.

See how others interpret our results (From the SLAC Spires citation index).