Search Results - "Sokhoyan, V"
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First measurement of polarisation transfer Cx′n in deuteron photodisintegration
Published in Physics letters. B (10-09-2023)“…A first measurement of the polarisation transfer from a circularly-polarised photon to the final state neutron (Cx′n) in deuterium photodisintegration has been…”
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First measurement of the helicity asymmetry for γp → pπ0 in the resonance region
Published in Physical review letters (10-01-2014)“…The first measurement of the helicity dependence of the photoproduction cross section of single neutral pions off protons is reported for photon energies from…”
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Three-body nature of N() and Δ() resonances from sequential decay chains
Published in Physical review letters (06-03-2015)“…The Nπ^{0}π^{0} decays of positive-parity N^{*} and Δ^{*} resonances at about 2 GeV are studied at ELSA by photoproduction of two neutral pions off protons…”
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Well-established nucleon resonances revisited by double-polarization measurements
Published in Physical review letters (05-09-2012)“…The first measurement is reported of the double-polarization observable G in the photoproduction of neutral pions off protons, covering the photon energy range…”
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Photoproduction of ω mesons off the proton
Published in Physics letters. B (07-10-2015)“…The differential cross sections and unpolarized spin-density matrix elements for the reaction γp→pω were measured using the CBELSA/TAPS experiment for initial…”
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Photoproduction of η mesons from the neutron: Cross sections and double polarization observable E
Published in The European physical journal. A, Hadrons and nuclei (2017)“… Results from measurements of the photoproduction of η mesons from quasifree protons and neutrons are summarized. The experiments were performed with the…”
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Momentum dependence of the imaginary part of the $ \omega$ - and $ \eta^{\prime}$ -nucleus optical potential
Published in The European physical journal. A, Hadrons and nuclei (01-09-2016)Get full text
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Quasifree photoproduction of eta mesons off the neutron
Published in Physical review letters (27-06-2008)“…Quasifree photoproduction of eta mesons off nucleons bound in the deuteron has been measured with the CBELSA/TAPS detector for incident photon energies up to…”
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N(1520) 3/2(-) helicity amplitudes from an energy-independent multipole analysis based on new polarization data on photoproduction of neutral pions
Published in Physical review letters (08-08-2014)“…New data on the polarization observables T, P, and H for the reaction γp→pπ(0) are reported. The results are extracted from azimuthal asymmetries when a…”
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The η-carbon potential at low meson momenta
Published in The European physical journal. A, Hadrons and nuclei (2018)“… The production of η mesons in coincidence with forward-going protons has been studied in photon-induced reactions on 12 C and on a liquid hydrogen (LH 2 )…”
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Measurement of double polarisation asymmetries in ω-photoproduction
Published in Physics letters. B (12-11-2015)“…The first measurements of the beam-target-helicity-asymmetries E and G in the photoproduction of ω-mesons off protons at the CBELSA/TAPS experiment are…”
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Double-polarization observable G in neutral-pion photoproduction off the proton
Published in The European physical journal. A, Hadrons and nuclei (2017)“… This paper reports on a measurement of the double-polarization observable G in π 0 photoproduction off the proton using the CBELSA/TAPS experiment at the…”
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Measurement of polarisation observables in Ks0Σ+ photoproduction off the proton
Published in Physics letters. B (01-11-2014)“…The reaction γp→KS0Σ+ is studied in the photon energy range from threshold. Linearly polarised photon beams from coherent bremsstrahlung enabled the first…”
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Photoproduction of $ \eta{^\prime}$ -mesons off the deuteron
Published in The European physical journal. A, Hadrons and nuclei (01-01-2011)Get full text
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The polarization observables T, P, and H and their impact on γp→pπ0 multipoles
Published in Physics letters. B (02-09-2015)“…Data on the polarization observables T, P, and H for the reaction γp→pπ0 are reported. Compared to earlier data from other experiments, our data are more…”
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Data on Is and Ic in γ→p→pπ0π0 reveal cascade decays of N(1900) via N(1520)π
Published in Physics letters. B (30-06-2015)“…Photoproduction of two neutral pions off the proton is studied using linearly polarized photons, and the polarization observables Is and Ic are measured for…”
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Momentum dependence of the imaginary part of the - and -nucleus optical potential
Published in The European physical journal. A, Hadrons and nuclei (2016)“… The photoproduction of and mesons off carbon and niobium nuclei has been measured as a function of the meson momentum for incident photon energies of…”
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Photoproduction of neutral pions off protons
Published in Physical review. C, Nuclear physics (09-11-2011)Get full text
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Study of η and η' Photoproduction at MAMI
Published in Physical review letters (26-05-2017)“…The reactions γp→ηp and γp→η^{'}p are measured from their thresholds up to the center-of-mass energy W=1.96 GeV with the tagged-photon facilities at the Mainz…”
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