0000000000515493

AUTHOR

D. Veretennikov

showing 6 related works from this author

Measurement of azimuthal asymmetries associated with deeply virtual Compton scattering on a longitudinally polarized deuterium target

2010

Azimuthal asymmetries in exclusive electroproduction of a real photon from a longitudinally polarized deuterium target are measured with respect to target polarization alone and with respect to target polarization combined with beam helicity and/or beam charge. The asymmetries appear in the distribution of the real photons in the azimuthal angle $\phi$ around the virtual photon direction, relative to the lepton scattering plane. The asymmetries arise from the deeply virtual Compton scattering process and its interference with the Bethe-Heitler process. The results for the beam-charge and beam-helicity asymmetries from a tensor polarized deuterium target with vanishing vector polarization ar…

Nuclear and High Energy Physics/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energyEVOLUTION KERNELS010308 nuclear & particles physicsGENERALIZED PARTON DISTRIBUTIONS; IMPACT PARAMETER SPACE; ELECTRON STORAGE-RING; EVOLUTION KERNELS; HERA; SPIN; NUCLEON; QCDHERAIMPACT PARAMETER SPACEFOS: Physical sciencesQCD01 natural sciencesHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)ELECTRON STORAGE-RINGSPINGENERALIZED PARTON DISTRIBUTIONS0103 physical sciencesddc:530High Energy Physics::ExperimentSDG 7 - Affordable and Clean EnergyNUCLEON010306 general physics
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Feasibility study for the measurement of πN transition distribution amplitudes at P¯ANDA in p¯p→J/ψπ0

2017

The exclusive charmonium production process in (P) over barp annihilation with an associated pi 0 meson (p) over barp -> J/psi pi(0) is studied in the framework of QCD collinear factorization. The feasibility of measuring this reaction through the J/psi -> e(+) e(-) decay channel with the AntiProton ANnihilation at DArmstadt ((P) over bar ANDA) experiment is investigated. Simulations on signal reconstruction efficiency as well as the background rejection from various sources including the (P) over barp -> pi(+)pi(-)pi(0) and (p) over barp -> J/psi pi(0)pi(0) reactions are performed with PANDAROOT, the simulation and analysis software framework of the (P) over bar ANDA experiment. It is show…

Quantum chromodynamicsPhysicsParticle physicsLuminosity (scattering theory)AnnihilationMeson010308 nuclear & particles physics7. Clean energy01 natural sciencesParticle identificationNuclear physicsFactorizationAntiproton0103 physical sciencesHigh Energy Physics::Experiment010306 general physicsBar (unit)Physical Review D
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Measurement of the Charge-Averaged Elastic Lepton-Proton Scattering Cross Section by the OLYMPUS Experiment

2020

Physical review letters 126(16), 162501 (1-6) (2021). doi:10.1103/PhysRevLett.126.162501

ProtonPhysics::Instrumentation and Detectorselectromagnetic [calorimeter]elastic scatteringGeneral Physics and AstronomyElectronmomentum transfer dependence01 natural sciencesEconomicaelectromagnetic form factorsDESY LabNuclear Experiment (nucl-ex)Nuclear ExperimentNuclear ExperimentPhysicsElastic scatteringLuminosity (scattering theory)Form factor (quantum field theory)elastic scattering [cross section]recoil [p]beam [positron]target [hydrogen]electromagnetic [form factor]electron-proton scatteringSocio-culturaleFOS: Physical sciences530electron p: scatteringNuclear physicsCross section (physics)PE2_2PE2_10103 physical sciencesform factor [p]p: recoilddc:530cross section: elastic scattering010306 general physicsPE2_3hydrogen: targetNuclear Physicspositron p: scatteringAmbientalepositron-proton scatteringDESYscattering [electron p]form factor: electromagneticscattering [positron p]positron: beamcalorimeter: electromagneticp: form factorPhysics::Accelerator PhysicsHigh Energy Physics::Experimentspectrometerexperimental resultsLeptonPhysical Review Letters
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Study of doubly strange systems using stored antiprotons

2016

Bound nuclear systems with two units of strangeness are still poorly known despite their importance for many strong interaction phenomena. Stored antiprotons beams in the GeV range represent an unparalleled factory for various hyperon-antihyperon pairs. Their outstanding large production probability in antiproton collisions will open the floodgates for a series of new studies of systems which contain two or even more units of strangeness at the PANDA experiment at FAIR. For the first time, high resolution gamma-spectroscopy of doubly strange Lambda Lambda-hypernuclei will be performed, thus complementing measurements of ground state decays of Lambda Lambda-hypernuclei at J-PARC or possible …

Particle physicsNuclear and High Energy PhysicsCOLLISIONSStrong interactionNuclear TheoryhyperatomsAntiprotons; Hyperatoms; Hypernuclei; Strangeness; Nuclear and High Energy PhysicsEXCHANGE CURRENTSAntiprotonsStrangeness01 natural sciencesPartícules (Física nuclear)NONuclear physicsSubatomär fysikHypemucleistrangenessDECUPLET BARYONSELECTRIC QUADRUPOLE-MOMENTSHyperatoms0103 physical sciencesSubatomic PhysicsHypernuclei010306 general physicsNuclear ExperimentPhysicshypernucleiNUCLEI010308 nuclear & particles physicsHyperonStrangenessTransport theoryDOUBLE-LAMBDA-HYPERNUCLEIMODELOMEGAAntiprotonPhysics::Accelerator PhysicsHeavy ionHigh Energy Physics::ExperimentantiprotonsINTERMEDIATE ENERGIESEMULSIONNuclear Physics A
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Nuclear-mass dependence of azimuthal beam-helicity and beam-charge asymmetries in deeply virtual Compton scattering

2009

The nuclear-mass dependence of azimuthal cross section asymmetries with respect to charge and longitudinal polarization of the lepton beam is studiedfor hard exclusive electroproduction of real photons. The observed beam-charge and beam-helicity asymmetries are attributed to the interference between the Bethe-Heitler and deeply virtual Compton scattering processes. For various nuclei, the asymmetries are extracted for both coherent and incoherent-enriched regions, which involve different (combinations of) generalized parton distributions. For both regions, the asymmetries are compared to those for a free proton, and no nuclear-mass dependence is found.

Nuclear and High Energy PhysicsParticle physicsPhotonNuclear TheoryHERAFOS: Physical sciencesIMPACT PARAMETER SPACEPartonGENERALIZED PARTON DISTRIBUTIONS; IMPACT PARAMETER SPACE; SPIN; HERA01 natural sciences7. Clean energyHigh Energy Physics - ExperimentNuclear physicsHigh Energy Physics - Experiment (hep-ex)GENERALIZED PARTON DISTRIBUTIONS0103 physical sciencesddc:530Nuclear Experiment010306 general physicsPhysicsElastic scattering010308 nuclear & particles physicsScatteringCompton scatteringHERASPINPhysics::Accelerator PhysicsHigh Energy Physics::ExperimentNucleonBeam (structure)
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The OLYMPUS Experiment

2014

Nuclear instruments & methods in physics research / A 741, 1 - 17 (2014). doi:10.1016/j.nima.2013.12.035

two-photon [exchange]Physics - Instrumentation and DetectorsPhysics::Instrumentation and DetectorsHadronluminosity: monitoringRecoil4-MOMENTUM TRANSFERSNuclear Experiment (nucl-ex)Nuclear ExperimentInstrumentationNuclear ExperimentPhysicsElastic scatteringLuminosity (scattering theory)ELECTROMAGNETIC FORM-FACTORSInstrumentation and Detectors (physics.ins-det)elastic scattering [cross section]positron p: elastic scatteringAntimatterdrift chamberelastic scattering [electron p]target [hydrogen]proportional chamberCROSS-SECTIONNuclear and High Energy PhysicsELECTRON-PROTONDESY DORIS StorFOS: Physical sciencesmonitoring [luminosity]time-of-flight530electron p: elastic scatteringNuclear physicsCross section (physics)RATIO(GEV/C)(2)p: form factor: ratiocalorimeterddc:530cross section: elastic scatteringactivity reporthydrogen: targetexchange: two-photonScatteringPOSITRONSDESYelastic scattering [positron p]magnetic spectrometerELECTROMAGNETIC FORM-FACTORS; PROTON ELASTIC-SCATTERING; 4-MOMENTUM TRANSFERS; ELECTRON-PROTON; CROSS-SECTION; RATIO; (GEV/C)(2); POSITRONSform factor: ratio [p]gas electron multiplierPhysics::Accelerator PhysicsPROTON ELASTIC-SCATTERINGHigh Energy Physics::Experiment
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