Recent results from COMPASS on exclusive muoproduction
Creators
- 1. Division of High Energy Physics, National Centre for Nuclear Research, PL 00-681 Warsaw (Poland)
Description
The 160 GeV polarised muon beam available at CERN, with positive or negative charge, makes COMPASS a unique place for GPD studies. The first GPD related COMPASS results come from exclusive vector meson production on transversely polarised protons and deuterons. The data were taken in 2003-2010 with large solid-state polarised targets, although without detection of recoil particles. Results on various transverse target spin dependent azimuthal asymmetries are presented and their relations to GPDs are discussed. The dedicated COMPASS GPD program started in 2012 with commissioning of a new long liquid hydrogen target and new detectors such as the large recoil proton detector and the large-angle electromagnetic calorimeter. It was followed by a short pilot 'DVCS run'. The performance of the setup and first results on DVCS and exclusive π0 channels have been demonstrated. The full data taking for the GPD program approved within COMPASS-II proposal is planned for 2016 and 2017. (paper)
Availability note (English)
Available from http://dx.doi.org/10.1088/1742-6596/678/1/012045Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of Physics. Conference Series (Online)
- Journal Volume
- 678
- Journal Issue
- 1
- Journal Page Range
- [6 p.]
- ISSN
- 1742-6596
Conference
- Title
- 16. workshop on high energy spin physics
- Acronym
- D-SPIN2015
- Dates
- 8-12 Sep 2015
- Place
- Dubna (Russian Federation)
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 47115816
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ASYMMETRY; CALORIMETERS; CERN; COMPASS DETECTOR; COMPASS-D TOKAMAK; DETECTION; DEUTERONS; GEV RANGE 100-1000; HYDROGEN; MUON BEAMS; MUONS; PARTICLE PRODUCTION; PERFORMANCE; POLARIZED TARGETS; PROTONS; RECOILS; SPIN; VECTOR MESONS
- Descriptors DEC
- ANGULAR MOMENTUM; BARYONS; BEAMS; BOSONS; CHARGED PARTICLES; CLOSED PLASMA DEVICES; ELEMENTARY PARTICLES; ELEMENTS; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; INTERNATIONAL ORGANIZATIONS; LEPTON BEAMS; LEPTONS; MEASURING INSTRUMENTS; MESONS; NONMETALS; NUCLEONS; PARTICLE BEAMS; PARTICLE PROPERTIES; RADIATION DETECTORS; TARGETS; THERMONUCLEAR DEVICES; TOKAMAK DEVICES