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Publications (20)

nucl-ex2015

Photoproduction of $I ¨ ^{0}$ -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 $I ¨ ^{0} I ¨ ^{0}$ pairs off free protons and off nucleons bound…

hep-ex2015

Measurement of pi^0 photoproduction on the proton at MAMI C

P. Adlarson, F. Afzal, C. S. Akondi +88

Differential cross sections for the gamma p -> pi^0 p reaction have been measured with the A2 tagged-photon facilities at the Mainz Microtron, MAMI C, up to the center-of-mass ener…

nucl-ex2018

Experimental study of the $I^^{3} p \to K^{0} I^£^{+}$ , $I^^{3} n \to K^{0} I^$ , and $I^^{3} n \to K^{0} I^£^{0}$ reactions at the Mainz Microtron

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

This work measured $d I ¨ / d I^c ◯$ for neutral kaon photoproduction reactions from threshold up to a c.m.\ energy of 1855MeV, focussing specifically on the $I^^{3} p \to K^{0} I^£^{+}$ , $Î³n…

nucl-ex2018

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

A. KÃ¤ser, M. Dieterle, L. Witthauer +80

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

hep-ex2017

Measurement of the pi^0 -> e^+e^-gamma Dalitz decay at the Mainz Microtron

P. Adlarson, F. Afzal, P. Aguar-BartolomÃ© +94

The Dalitz decay pi^0 -> e^+e^-gamma has been measured in the gamma p -> pi^0 p reaction with the A2 tagged-photon facility at the Mainz Microtron, MAMI. The value obtained for the…

hep-ex2026

New high-statistics measurement of the $I ¨ ^{0} \to e^{+} e^{-} I^^{3}$ Dalitz decay at the Mainz Microtron

S. Prakhov, L. HeijkenskjÃ¶ld, S. Abt +69

The Dalitz decay $I ¨ ^{0} \to e^{+} e^{-} I^^{3}$ has been measured with the highest statistical accuracy obtained so far in the $I^^{3} p \to I ¨ ^{0} p$ reaction with the A2 tagged-photon facility at t…

nucl-ex2017

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

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

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

hep-ex2018

High-statistics measurement of the eta->3pi^0 decay at the Mainz Microtron

S. Prakhov, S. Abt, P. Achenbach +85

The largest, at the moment, statistics of 7x10^6 eta->3pi^0 decays, based on 6.2x10^7 eta mesons produced in the gamma p -> eta p reaction, has been accumulated by the A2 Collabora…

nucl-ex2016

Photoproduction ofeta-pi pairs off nucleons and deuterons

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

Quasi-free photoproduction of $I ¨ I^\cdot$ -pairs has been investigated from threshold up to incident photon energies of 1.4 GeV, respectively up to photon-nucleon invariant masses up to…

nucl-ex2020

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 $I^£_{2 z}$ has been measured for the first time in the $I^ (1232)$ resonance region using a circularly polarized photon beam incident on a…

hep-ex2017

Measurement of the omega -> pi^0 e^+e^- and eta -> e^+e^-g Dalitz decays with the A2 setup at MAMI

P. Adlarson, F. Afzal, P. Aguar-BartolomÃ© +92

The Dalitz decays eta -> e^+e^-g and omega -> pi^0 e^+e^- have been measured in the g p -> eta p and g p -> omega p reactions, respectively, with the A2 tagged-photon facility at t…

nucl-ex2017

Insight into the narrow structure in {\boldmath{ $I^\cdot$ }}-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 $I ¨ _{1/2}$ and $I ¨ _{3/2}$ were measured for $I^\cdot$ photoproduction from quasi-free protons and neutro…

nucl-ex2017

Study of $I^\cdot$ and $I^\cdot^{'}$ photoproduction at MAMI

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

The reactions $I^^{3} p \to I^\cdot p$ and $I^^{3} p \to I^\cdot^{'} p$ 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 Mi…

nucl-ex2016

Photon asymmetry measurements of $I^^{3} p \to I ¨ ^{0} p$ for E $_{I^}^{3}$ =320 $-$ 650 MeV

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

High statistics measurements of the photon asymmetry $I^£$ for the $I^^{3}$ p $\to I ¨ ^{0}$ p reaction have been made in the center of mass energy range W=1214-…

physics.ins-det2015

A new measurement of the neutron detection efficiency for the NaI Crystal Ball detector

M. Martemianov, V. Kulikov, B. T. Demissie +68

We report on a measurement of the neutron detection efficiency in NaI crystals in the Crystal Ball detector obtained from a study of single p0 photoproduction on deuterium using th…

nucl-ex2021

Single $I ¨ ^{0}$ Production Off Neutrons Bound in Deuteron with Linearly Polarized Photons

C. Mullen, S. Gardner, D. I. Glazier +79

The quasifree $I^^{3} d \to I ¨ ^{0} n (p)$ photon beam asymmetry, $I^£$ , has been measured at photon energies, $E_{I^}^{3}$ , from 390 to 610 MeV, corresponding to center of mass energ…

nucl-ex2018

Study of the $I^^{3} p \to I ¨ ^{0} I^\cdot p$ reaction with the A2 setup at MAMI

V. Sokhoyan, S. Prakhov, A. Fix +99

The data available from the A2 Collaboration at MAMI were analyzed to select the $I^^{3} p \to I ¨ ^{0} I^\cdot p$ reaction on an event-by-event basis, which allows for partial-wave analyses of thr…

nucl-ex2020

Measurement of the beam-helicity asymmetry in photoproduction of $I ¨ ^{0} I^\cdot$ 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 $I ¨ ^{0} I^\cdot$ pairs on carbon, aluminum, and lead, with the A2 experimental setup at MAMI. The resu…

nucl-ex2017

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 $I^\cdot$ photoproduction from quasi-free protons and neutrons bound in the deuter…

nucl-ex2014

Measurement of the transverse target and beam-target asymmetries in $I^\cdot$ 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 $I^^{3} p \to I^\cdot p$ reaction up to a center-of-mass energ…

Publications (20)

Photoproduction of I¨0-pairs off protons and off neutrons

Measurement of pi^0 photoproduction on the proton at MAMI C

Experimental study of the I^3p→K0I^£+, I^3n→K0I^, and I^3n→K0I^£0 reactions at the Mainz Microtron

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

Measurement of the pi^0 -> e^+e^-gamma Dalitz decay at the Mainz Microtron

New high-statistics measurement of the I¨0→e+e−I^3 Dalitz decay at the Mainz Microtron

First measurement of the polarization observable E and helicity-dependent cross sections in single I¨0 photoproduction from quasi-free nucleons

High-statistics measurement of the eta->3pi^0 decay at the Mainz Microtron

Photoproduction ofeta-pi pairs off nucleons and deuterons

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

Measurement of the omega -> pi^0 e^+e^- and eta -> e^+e^-g Dalitz decays with the A2 setup at MAMI

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

Study of I^⋅ and I^⋅′ photoproduction at MAMI

Photon asymmetry measurements of I^3p→I¨0p for EI^3​=320−650 MeV

A new measurement of the neutron detection efficiency for the NaI Crystal Ball detector

Single I¨0 Production Off Neutrons Bound in Deuteron with Linearly Polarized Photons

Study of the I^3p→I¨0I^⋅p reaction with the A2 setup at MAMI

Measurement of the beam-helicity asymmetry in photoproduction of I¨0I^⋅ pairs on carbon, aluminum, and lead

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

Measurement of the transverse target and beam-target asymmetries in I^⋅ meson photoproduction at MAMI

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

Experimental study of the $I^^{3} p \to K^{0} I^£^{+}$ , $I^^{3} n \to K^{0} I^$ , and $I^^{3} n \to K^{0} I^£^{0}$ reactions at the Mainz Microtron

New high-statistics measurement of the $I ¨ ^{0} \to e^{+} e^{-} I^^{3}$ Dalitz decay at the Mainz Microtron

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

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

Study of $I^\cdot$ and $I^\cdot^{'}$ photoproduction at MAMI

Photon asymmetry measurements of $I^^{3} p \to I ¨ ^{0} p$ for E $_{I^}^{3}$ =320 $-$ 650 MeV

Single $I ¨ ^{0}$ Production Off Neutrons Bound in Deuteron with Linearly Polarized Photons

Study of the $I^^{3} p \to I ¨ ^{0} I^\cdot p$ reaction with the A2 setup at MAMI

Measurement of the beam-helicity asymmetry in photoproduction of $I ¨ ^{0} I^\cdot$ pairs on carbon, aluminum, and lead

Measurement of the transverse target and beam-target asymmetries in $I^\cdot$ meson photoproduction at MAMI