Author/Authors :
Q2) Original Research Article
Pages 471-502
H1 Collaboration، نويسنده , , J. C. Adloff، نويسنده , , S. Aid، نويسنده , , M. Anderson، نويسنده , , A. V. Andreev، نويسنده , , B. Andrieu، نويسنده , , V. Arkadov، نويسنده , , C. Arndt، نويسنده , , I. Ayyaz، نويسنده , , A. Babaev and NRMI Investigators، نويسنده , , Matthias J. Bahr، نويسنده , , J. B?n، نويسنده , , P. Baranov، نويسنده , , E. Barrelet، نويسنده , , R. Barschke، نويسنده , , W. Bartel، نويسنده , , U. Bassler، نويسنده , , P. Bate، نويسنده , , M. Beck، نويسنده , , A. Beglarian، نويسنده , , et al.، نويسنده ,
Abstract :
Characteristics of hadron production in diffractive deep-inelastic positron-proton scattering are studied using data collected in 1994 by the H1 experiment at HERA. The following distributions are measured in the centre-of-mass frame of the photon dissociation system: the hadronic energy flow, the Feynman-x (xF) variable for charged particles, the squared transverse momentum of charged particles (pT∗2), and the mean pT∗2 as a function of xF. These distributions are compared with results in the γ∗p centre-of-mass frame from inclusive deep-inelastic scattering in the fixed-target experiment EMC, and also with the predictions of several Monte Carlo calculations. The data are consistent with a picture in which the partonic structure of the diffractive exchange is dominated at low Q2 by hard gluons.