Recent results on diffractive physics with DIS and photoproduction at HERA
Description
Events with a large rapidity gap have been studied in the H 1 and ZEUS detectors. Exclusive vector meson have been observed both in DIS and photoproduction events. The cross section and differential cross sections have been measured. ρ0 production in DIS shows a faster rise than ρ0 in photoproduction as a function of the γp centre of mass energy. The large rapidity gap events represent about 10% of all deep inelastic scattering events, and they have the same Q2 behaviour. These events are consistent with leading twist as exhibited in the total DIS sample. In a jet study of DIS and photoproduction, two jet production is observed and demonstrate the presence of hard scattering in the virtual photon proton interactions that give rise to large rapidity gap events
Additional details
Publishing Information
- Imprint Title
- Hadrons-94
- Imprint Pagination
- 372 p.
- Journal Page Range
- p. 6-21.
- Report number
- INIS-UA--012
Conference
- Title
- Workshop on soft physics (strong interaction at large distances).
- Dates
- 7-11 Sep 1994.
- Place
- Uzhgorod (Ukraine).
INIS
- Country of Publication
- Ukraine
- Country of Input or Organization
- Ukraine
- INIS RN
- 27003297
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- DEEP INELASTIC SCATTERING; DIFFERENTIAL CROSS SECTIONS; DIFFRACTION MODELS; ELECTRON-PROTON INTERACTIONS; ENERGY DEPENDENCE; EXCLUSIVE INTERACTIONS; GEV RANGE 10-100; GEV RANGE 100-1000; HERA STORAGE RING; INCLUSIVE INTERACTIONS; JET MODEL; MASS; MONTE CARLO METHOD; PHOTON-PROTON INTERACTIONS; PHOTOPRODUCTION; SPECTRA; TOTAL CROSS SECTIONS; TRANSVERSE ENERGY; VECTOR MESONS
- Descriptors DEC
- BASIC INTERACTIONS; BOSONS; CALCULATION METHODS; CROSS SECTIONS; ELECTROMAGNETIC INTERACTIONS; ELECTRON-NUCLEON INTERACTIONS; ELEMENTARY PARTICLES; ENERGY; ENERGY RANGE; GEV RANGE; HADRONS; INELASTIC SCATTERING; INTERACTIONS; KINETIC ENERGY; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; MATHEMATICAL MODELS; MESONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; PHOTON-BARYON INTERACTIONS; PHOTON-HADRON INTERACTIONS; PHOTON-NUCLEON INTERACTIONS; SCATTERING; STORAGE RINGS