42 Result(s)
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Article
First results on strangeness production in 60 and 200 GeV/nucleon heavy ion reactions from the NA 35 streamer chamber
We present the first preliminary results on Λ,K s 0 and \(\bar \Lambda\) production on a gold target with proton and oxygen beams in the NA35 streamer chamber.
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Article
Negative particle production in nuclear collisions at 60 and 200 GeV/nucleon
The results on spectra of negative particles produced in16O+Au andp-Au collisions at 200 GeV/nucleon and16O+Au at 60 GeV/nucleon are presented. The correlations of average rapidity and average transverse momentum...
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Article
Pion interferometry with ultrarelavistic heavy-ion collisions from the NA35 experiment
Results from a pion interferometric analysis of the system 200 GeV/nucleon16O+Au, central collisions, are reported. Both a Gaussian source model and a model based on the inside-outside cascade are used to fit to ...
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Article
Study of the energy flow in16O-nucleus collisions at 60 and 200 GeV/nucleon
We report a systematic study of mid-rapidityE T production and forward energy flow in the interaction of16O projectiles on Al, Cu, Ag and Au at 60 and 200 GeV/nucleon. First results onE T production with32S proje...
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Article
A study ofK s o , Λ and \(\bar \Lambda \) production in 60 and 200 GeV per nucleon OAu and pAu collisions with a streamer chamber detector at the CERN SPSproduction in 60 and 200 GeV per nucleon OAu and pAu collisions with a streamer chamber detector at the CERN SPS
The production of neutral strange particlesK s o , Λ and % MathType!MTEF!2!1!+-% feaafiart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2...
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Article
Neutral strange particle production in sulphur-sulphur and proton-sulphur collisions at 200 GeV/nucleon
The production of Λ, \(\bar \Lambda\) andK s ...
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Article
Charged particle multiplicities in nuclear collisions at 200 GeV/N
Data on multiplicities of charged particles produced in proton-nucleus and nucleus-nucleus collisions at 200 GeV per nucleon are presented. It is shown that the mean multiplicity of negative particles is propo...
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Article
Study of the energy flow in sulphur-and oxygen-nucleus collisions at 60 and 200 GeV/nucleon
We report on a systematic study of midrapidity transverse energy production and forward energy flow in interactions of16O and32S projectiles with S, Cu, Ag and Au targets at 60 and 200 GeV/nucleon. The variation ...
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Article
Photon Asymmetry of Deuteron Photodisintegration Between 160 and 410 MeV
The photon asymmetry Σ of the reaction has been measured across the photon energy range 160–410 MeV at the Mainz Microtron MAMI. Linearly polarized photons were obtained from...
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Article
Low-energy Compton scattering and the polarizabilities of the proton
Differential cross-sections for Compton scattering from the proton have been measured at the MAMI tagged photon facility using the TAPS setup. The data cover an angular range of θlab γ = 59°-155° and photon energ...
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Article
Quasi-free Compton scattering and the polarizabilities of the neutron
Differential cross-sections for quasi-free Compton scattering from the proton and neutron bound in the deuteron have been measured using the Glasgow/Mainz photon tagging spectrometer at the Mainz MAMI accelera...
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Article
First measurement of the helicity-dependent γ p↦pη differential cross-section
The helicity dependence of the γ p↦pη reaction has been measured for the first time at a center-of-mass angle θ* η = 70° in the photon energ...
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Article
Quasi-free \(\pi^0\) photoproduction from the bound nucleon
Differential cross-sections for quasi-free \(\pi^0\) photoproduction from the proton and neutron bound in the deuteron ...
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Article
Measurement of the πmeson polarizabilities via the γp → γπ+n reaction
An experiment on the radiative π{+}-meson photoproduction from the proton ( γp → γπ{+}n) was carried out at the Mainz Microtron MAMI in the kinematic region 537MeV < Eγ < 817MeV, 140°≤
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Article
Measurement of the G asymmetry for the γp↦Nπ channels in the Δ(1232) resonance region
The G asymmetry of the γp↦Nπ reaction has been measured for the first time for Eγ = 340±14 MeV. This observable, for which very scarce published data exist, plays an important role to disentangle the contribution...
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Chapter and Conference Paper
The Gerasimov-Drell-Hearn sum rule at MAMI
An extended experimental program to investigate the Gerasimov-Drell-Hearn (GDH) sum rule and related partial reaction cross sections on proton and neutron has been carried out by the GDH collaboration at the e...
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Article
The Gerasimov-Drell-Hearn sum rule at MAMI
An extended experimental program to investigate the Gerasimov-Drell-Hearn (GDH) sum rule and related partial reaction cross sections on proton and neutron has been carried out by the GDH collaboration at the e...
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Article
Double pion photoproduction off 40Ca
The photoproduction of π 0 π 0 and π 0 π ± pairs off 40Ca has been investigated with the TAPS detector using the Glasgow photon tagging spectrometer at the Mainz MAMI accelerator. Data have been taken for inciden...
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Article
First measurement of the helicity dependence for the γp → pπreaction
The helicity dependence of the total cross-section and the invariant-mass distributions in the (pπ±) and (π+π-) final states for the γp → pπ+π- reaction have been measured for the first time at incident photon en...
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Chapter and Conference Paper
Physics at MAMI
The Mainz Microtron MAMI has delivered a high quality electron beam with maximum energy of 880MeV for many years. Recently the MAMI C stage with its maximum energy of 1.5GeV was put into operation successfully...
