Author: Ping-Kun Teng
Publisher:
ISBN:
Category :
Languages : en
Pages : 151
Book Description
Positive Pion Photoproduction on (10 Sup)B, (14 Sup)n and (16 Sup)o in the Delta Resonance Region
Author: Ping-Kun Teng
Publisher:
ISBN:
Category :
Languages : en
Pages : 151
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 151
Book Description
A Study of Pion Photoproduction on Carbon-12 in the Delta Resonance Region
Author: John Alan MacKenzie
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A Study of Pion Photoproduction on Helium-4 in the Delta Resonance Region Using Polarised and Unpolarised Photons
Author: Jason F. Arneil
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Measurements of the reaction on a 4 He target have been carried out using both unpolarised and polarised photons. This work is the latest in a series of experiments conducted by the Edinburgh University Nuclear Physics group in collaboration with the Universities of Glasgow and Tubingen. The experiment was carried out using the 855 MeV MAMIB electron accelerator at the Institut fur Kernphysik, Mainz, between March and August of 1996. The 855 MeV electrons from the accelerator were directed either, on to a 4 micron Nickel foil to produce unpolarised photons or on to a 0.1 mm Diamond to produce polarised photons. These photons were then tagged with a resolution of 2 MeV using a spectrometer. The photons then impinged on a 4 He cryotarget. Two sets of detectors were used to detect the reaction products. PiP, a plastic scintillator hodoscope, was used to detect the positive pions; and TOF a time of flight array, was used to detect the neutrons. Data was analysed for unpolarised photon energy regions centred at E =260,300,340 and 380 MeV and two polarised regions centred at E =258 and 338 MeV. The unpolarised data is presented as double and triple differential cross sec tions while the polarised data is presented as photon asymmetries of the corres ponding double differential cross section. A comparison is made with Plane Wave Impulse Approximation (PWIA) calculations by Louis Wright, both with and without final state interaction corrections. It is concluded that for the unpolar ised data a more sophisticated treatment of the final state interactions is required while for the polarised data reasonable agreement is found between experiment and theory.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Measurements of the reaction on a 4 He target have been carried out using both unpolarised and polarised photons. This work is the latest in a series of experiments conducted by the Edinburgh University Nuclear Physics group in collaboration with the Universities of Glasgow and Tubingen. The experiment was carried out using the 855 MeV MAMIB electron accelerator at the Institut fur Kernphysik, Mainz, between March and August of 1996. The 855 MeV electrons from the accelerator were directed either, on to a 4 micron Nickel foil to produce unpolarised photons or on to a 0.1 mm Diamond to produce polarised photons. These photons were then tagged with a resolution of 2 MeV using a spectrometer. The photons then impinged on a 4 He cryotarget. Two sets of detectors were used to detect the reaction products. PiP, a plastic scintillator hodoscope, was used to detect the positive pions; and TOF a time of flight array, was used to detect the neutrons. Data was analysed for unpolarised photon energy regions centred at E =260,300,340 and 380 MeV and two polarised regions centred at E =258 and 338 MeV. The unpolarised data is presented as double and triple differential cross sec tions while the polarised data is presented as photon asymmetries of the corres ponding double differential cross section. A comparison is made with Plane Wave Impulse Approximation (PWIA) calculations by Louis Wright, both with and without final state interaction corrections. It is concluded that for the unpolar ised data a more sophisticated treatment of the final state interactions is required while for the polarised data reasonable agreement is found between experiment and theory.
Photopion Production on (sub14)N in the Delta Resonance Region
Author: Malage D. S. Seneviratne
Publisher:
ISBN:
Category :
Languages : en
Pages : 116
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 116
Book Description
Analysis of Pion Photoproduction in the Second Resonance Region
Author: Y. C. Chau
Publisher:
ISBN:
Category :
Languages : en
Pages : 25
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 25
Book Description
A Multiple Analysis of Pion Photoproduction in the First Resonance Region
Author: Frederik Allard Berends
Publisher:
ISBN:
Category :
Languages : en
Pages : 21
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 21
Book Description
Positive Pion Photoproduction on (sup 14)N and (sup 6) Li
Author: Jan H. J. Distelbrink
Publisher:
ISBN:
Category :
Languages : en
Pages : 214
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 214
Book Description
Pion Photoproduction in the Energy Range Between Threshold and the [triangle]-resonance Region
Author: Kenneth A. Magno (Jr.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 96
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 96
Book Description
Simultaneous Measurements of Positive Pion Photoproduction Cross Sections and Beam Asymmetries with Linearly Polarized Photons in the Delta-region
Author: Lino Miceli
Publisher:
ISBN:
Category :
Languages : en
Pages : 446
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 446
Book Description
Positive-pion Photoproduction at 180 Degrees Near the Second Nucleon-pion Resonance
Author: C. Schaerf
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
Book Description
In a previous experiment the cross section for the photoproduction of pions in hydrogen near the second pion nucleon resonance was measured at 135 degrees and 180 degrees in the CMS. At 180 degrees the measurements did show a very sharp peak at a gamma ray energy of 700 MeV. The experiment has now been repeated only at 180 degrees, with improved energy resolution. The new results, in agreement with the old ones, show the same sharp energy dependence at about the same value of the primary energy. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
Book Description
In a previous experiment the cross section for the photoproduction of pions in hydrogen near the second pion nucleon resonance was measured at 135 degrees and 180 degrees in the CMS. At 180 degrees the measurements did show a very sharp peak at a gamma ray energy of 700 MeV. The experiment has now been repeated only at 180 degrees, with improved energy resolution. The new results, in agreement with the old ones, show the same sharp energy dependence at about the same value of the primary energy. (Author).