Author/Authors :
Q2) Original Research Article
Pages 471-502
H1 Collaboration، نويسنده , , J. C. Adloff، نويسنده , , A. V. Andreev، نويسنده , , B. Andrieu، نويسنده , , V. Arkadov، نويسنده , , A. Astvatsatourov، نويسنده , , I. Ayyaz، نويسنده , , A. Babaev and NRMI Investigators، نويسنده , , Matthias J. Bahr، نويسنده , , P. Baranov، نويسنده , , E. Barrelet، نويسنده , , W. Bartel، نويسنده , , U. Bassler، نويسنده , , P. Bate، نويسنده , , A. Beglarian، نويسنده , , O. Behnke، نويسنده , , H.-J. Behrend، نويسنده , , C. Beier، نويسنده , , V. A. Belousov، نويسنده , , Ch. Berger، نويسنده , , et al.، نويسنده ,
Abstract :
Internal jet structure in dijet production in deep-inelastic scattering is measured with the H1 detector at HERA. Jets with transverse energies ET,Breit > 5 GeV are selected in the Breit frame employing k⊥ and cone jet algorithms. In the kinematic region of ssquared momentum transfers 10 < Q2 ⪅s 120 GeV2 and Bjorken−x values 2 < 10−4 ⪅ xBj ⪅ 8 × 10−3, jet shapes and subjet multiplicities are measured as a function of a resolution parameter. Distributions of both observables are corrected for detector effects and presented as functions of the transverse jet energy and jet pseudo-rapidity. Dependences of the jet shape and the average number of subjets on the transverse energy and the pseudo-rapidity of the jet are observed. With increasing transverse jet energies and decreasing pseudo-rapidities, i.e. towards the photon hemisphere, the jets are more collimated. QCD models give a fair description of the data.
