A. Mushkarenkov

activity

20082022

most citedStudy of the gp-->etap reaction with the Crystal Ball detector at the Mainz Microtron(MAMI-C)

126 citations · 1.5k across the 49 of their papers we have counts for

collaborators

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39 papers · 1 filter

nucl-ex2021★ 22 cited

Photoproduction of $K^{+} Λ (1405) \to K^{+} π^{0} Σ^{0}$ extending to forward angles and low momentum transfer

G. Scheluchin, T. C. Jude, S. Alef +32

$K^{+} Λ (1405)$ photoproduction has been studied at the BGOOD experiment via the all neutral decay, $Λ (1405) \to Σ^{0} π^{0}$ . The unique BGOOD experimental setup allows both the cro…

nucl-ex2020

Strangeness photoproduction at the BGO-OD experiment

Georg Scheluchin, Stefan Alef, Patrick Bauer +30

The BGO-OD experiment at the University of Bonn's ELSA accelerator facility in Germany is ideally suited to investigate photoproduction at extreme forward angles. It combines a hig…

nucl-ex2020★ 1 cited

Strangeness Photoproduction at the BGO-OD experiment

T. C. Jude, S. Alef, P. Bauer +30

The BGO-OD experiment at the ELSA accelerator facility uses an energy tagged bremsstrahlung photon beam to investigate the excitation structure of the nucleon. The setup consists o…

nucl-ex2020★ 9 cited

Helicity-dependent cross sections for the photoproduction of $π^{0}$ pairs from nucleons

M. Dieterle, L. Witthauer, A. Fix +88

The double-polarization observable $E$ and helicity-dependent cross sections $σ_{1/2}$ , $σ_{3/2}$ have been measured for the photoproduction of $π^{0}$ pairs off quasi-free protons a…

nucl-ex2019★ 14 cited

Spin polarizabilities of the proton by measurement of Compton double-polarization observables

D. Paudyal, P. P. Martel, G. M. Huber +90

The Compton double-polarization observable $Σ_{2 z}$ has been measured for the first time in the $Δ (1232)$ resonance region using a circularly polarized photon beam incident on a lo…

nucl-ex2019★ 27 cited

Cross Section for $γ n \to π^{0} n$ measured at Mainz/A2

W. J. Briscoe, M. Hadzimehmedovi, A. E. Kudryavtsev +89

The $γ n \to π^{0} n$ differential cross section evaluated for 27 energy bins span the photon-energy range 290-813 MeV (W = 1.195-1.553 GeV) and the pion c.m. polar production angles,…

nucl-ex2019★ 3 cited

Measurement of the beam-helicity asymmetry in photoproduction of $π^{0} η$ pairs on carbon, aluminum, and lead

V. Sokhoyan, S. Prakhov, A. Fix +88

The beam-helicity asymmetry was measured, for the first time, in photoproduction of $π^{0} η$ pairs on carbon, aluminum, and lead, with the A2 experimental setup at MAMI. The result…

nucl-ex2018★ 21 cited

Experimental study of the $γ p \to K^{0} Σ^{+}$ , $γ n \to K^{0} Λ$ , and $γ n \to K^{0} Σ^{0}$ reactions at the Mainz Microtron

C. S. Akondi, K. Bantawa, D. M. Manley +78

This work measured $d σ / d Ω$ for neutral kaon photoproduction reactions from threshold up to a c.m.\ energy of 1855MeV, focussing specifically on the $γ p \to K^{0} Σ^{+}$ , $γn\righ…

nucl-ex2018★ 9 cited

First measurement of helicity-dependent cross sections in pi0-eta photoproduction from quasi-free nucleons

A. Käser, M. Dieterle, L. Witthauer +80

The helicity-dependent cross sections for the photoproduction of $π^{0} η$ pairs have been measured for the first time. The experiment was performed at the tagged photon facility of t…

nucl-ex2017★ 24 cited

First measurement of the polarization observable $E$ and helicity-dependent cross sections in single $π^{0}$ photoproduction from quasi-free nucleons

M. Dieterle, L. Witthauer, F. Cividini +84

The double-polarization observable $E$ and the helicity-dependent cross sections $σ_{1/2}$ and $σ_{3/2}$ have been measured for the first time for single $π^{0}$ photoproduction fr…

nucl-ex2017★ 24 cited

Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons

L. Witthauer, M. Dieterle, S. Abt +84

Precise helicity-dependent cross sections and the double-polarization observable $E$ were measured for $η$ photoproduction from quasi-free protons and neutrons bound in the deutero…

nucl-ex2017★ 31 cited

Insight into the narrow structure in {\boldmath{ $η$ }}-photoproduction on the neutron from helicity dependent cross sections

L. Witthauer, M. Dieterle, S. Abt +83

The double polarization observable $E$ and the helicity dependent cross sections $σ_{1/2}$ and $σ_{3/2}$ were measured for $η$ photoproduction from quasi-free protons and neutrons.…

nucl-ex2017★ 55 cited

Study of $η$ and $η^{'}$ photoproduction at MAMI

V. L. Kashevarov, P. Ott, S. Prakhov +87

The reactions $γ p \to η p$ and $γ p \to η^{'} p$ have been measured from their thresholds up to the center-of-mass energy $W = 1.96$ GeV with the tagged-photon facilities at the Mainz Microt…

nucl-ex2016★ 22 cited

Determination of the scalar polarizabilities of the proton using beam asymmetry $Σ_{3}$ in Compton scattering

V. Sokhoyan, E. J. Downie, E. Mornacchi +73

The scalar dipole polarizabilities, $α_{E 1}$ and $β_{M 1}$ , are fundamental properties related to the internal dynamics of the nucleon. The currently accepted values of the proton p…

nucl-ex2016★ 21 cited

Photoproduction ofeta-pi pairs off nucleons and deuterons

A. Kaeser, F. Mueller, J. Ahrens +66

Quasi-free photoproduction of $π η$ -pairs has been investigated from threshold up to incident photon energies of 1.4 GeV, respectively up to photon-nucleon invariant masses up to 1.…

nucl-ex2016★ 11 cited

Photon asymmetry measurements of $γ p \to π^{0} p$ for E $_{γ}$ =320 $-$ 650 MeV

S. Gardner, D. Howdle, M. H. Sikora +97

High statistics measurements of the photon asymmetry $Σ$ for the $γ$ p $\to π^{0}$ p reaction have been made in the center of mass energy range W=1214-145…

nucl-ex2015

Photoproduction of $π^{0}$ -pairs off protons and off neutrons

M. Dieterle, M. Oberle, J. Ahrens +71

Total cross sections, angular distributions, and invariant-mass distributions have been measured for the photoproduction of $π^{0} π^{0}$ pairs off free protons and off nucleons bound i…

nucl-ex2015★ 1 cited

Strangeness Photoproduction at the BGO-OD Experiment

T. C. Jude, S. Alef, D. Bayadilov +61

BGO-OD is a newly commissioned experiment to investigate the internal structure of the nucleon, using an energy tagged bremsstrahlung photon beam at the ELSA electron facility. The…

nucl-ex2015

The isospin structure of photoproduction of pi-eta pairs from the nucleon in the threshold region

A. Käser, J. Ahrens, J. R. M. Annand +71

Photoproduction of $π η$ -pairs from nucleons has been investigated from threshold up to incident photon energies of $\approx$ ~1.4~GeV. The quasi-free reactions $γ p \to p π^{0} η$ …

nucl-ex2015★ 10 cited

First measurement of target and beam-target asymmetries in the $γ p \to π^{0} η p$ reaction

J. R. M. Annand, H. J. Arends, R. Beck +64

The first data on target and beam-target asymmetries for the $γ p \to π^{0} η p$ reaction at photon energies from 1050 up to 1450 MeV are presented. The measurements were performed using…

nucl-ex2014★ 45 cited

Measurement of the transverse target and beam-target asymmetries in $η$ meson photoproduction at MAMI

C. S. Akondi, J. R. M. Annand, H. J. Arends +67

We present new data for the transverse target asymmetry T and the very first data for the beam-target asymmetry F in the $γ p \to η p$ reaction up to a center-of-mass energy…

nucl-ex2014★ 42 cited

Measurements of Double-Polarized Compton Scattering Asymmetries and Extraction of the Proton Spin Polarizabilities

P. P. Martel, R. Miskimen, P. Aguar-Bartolome +76

The spin polarizabilities of the nucleon describe how the spin of the nucleon responds to an incident polarized photon. The most model-independent way to measure the nucleon spin p…

nucl-ex2014★ 59 cited

Quasifree photoproduction of $η$ mesons off protons and neutrons

A2 Collaboration, D. Werthmüller, L. Witthauer +72

Differential and total cross sections for the quasifree reactions $γ p \to η p$ and $γ n \to η n$ have been determined at the MAMI-C electron accelerator using a liquid deu…

nucl-ex2014★ 31 cited

First Measurement of the $Σ$ Beam Asymmetry in $η^{'}$ Photoproduction off the Proton near Threshold

P. Levi Sandri, G. Mandaglio, V. De Leo +33

The $Σ$ beam asymmetry in $η^{'}$ photoproduction off the proton was measured at the GrAAL polarised photon beam with incoming photon energies of 1.461 and 1.480 GeV. For both…

Photoproduction of K+Λ(1405)→K+π0Σ0 extending to forward angles and low momentum transfer

Strangeness photoproduction at the BGO-OD experiment

Strangeness Photoproduction at the BGO-OD experiment

Helicity-dependent cross sections for the photoproduction of π0 pairs from nucleons

Spin polarizabilities of the proton by measurement of Compton double-polarization observables

Cross Section for γn→π0n measured at Mainz/A2

Measurement of the beam-helicity asymmetry in photoproduction of π0η pairs on carbon, aluminum, and lead

Experimental study of the γp→K0Σ+, γn→K0Λ, and γn→K0Σ0 reactions at the Mainz Microtron

First measurement of helicity-dependent cross sections in pi0-eta photoproduction from quasi-free nucleons

First measurement of the polarization observable E and helicity-dependent cross sections in single π0 photoproduction from quasi-free nucleons

Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons

Insight into the narrow structure in {\boldmath{η}}-photoproduction on the neutron from helicity dependent cross sections

Study of η and η′ photoproduction at MAMI

Determination of the scalar polarizabilities of the proton using beam asymmetry Σ3​ in Compton scattering