Dimuon production in proton-copper collisions ats=38.8GeV

Abstract

Experimental results on the production of dimuons by 800-GeV protons incident on a copper target are presented. The results include measurements of both the continuum of dimuons and the dimuon decays of the three lowest-mass Y S states. A description of the apparatus, data acquisition, and analysis techniques is included. A comparison of the results with data taken at lower incident energies indicates a scaling behavior of the continuum dimuon yields.

Improved measurement of thed¯/ūasymmetry in the nucleon sea

“…The detector apparatus used in this experiment was the E605 dimuon spectrometer [17], shown in Fig. 1.…”

Impact of new neutrino deep inelastic scattering and Drell-Yan data on large-xparton distributions

“…The reference fit was made to data from the BCDMS Collaboration [10] for F p 2 and F d 2 , from the NMC Collaboration [11] for F p 2 and F d 2 /F p 2 , from H1 [12] and ZEUS [13] for F P 2 , from CDF [14] and DØ [15] for inclusive jet production, from CDF [16] for the W lepton asymmetry, from E-866 [17] for the ratio of lepton pair cross sections for pd and pp interac-tions, and from E-605 [18] for dimuon production in pN interactions. Note that the E-605 data were taken on a copper target, but the nuclear corrections in the relevant kinematic region have been measured [20] to be consistent with A 1 , so no nuclear corrections were included for these data.…”

Measurement of the Light Antiquark Flavor Asymmetry in the Nucleon Sea

“…E866 used a 3-dipole magnet spectrometer [10] employed in previous experiments (E605, E772, and E789), modified by the addition of new drift chambers and hodoscopes with larger acceptance at the first tracking station. Other improvements to the spectrometer included a programmable trigger system [11] and a VME-based data acquisition system.…”