Measurement of the differential cross section for the two-body photodisintegration of 3He at θLAB=90° using tagged photons in the energy range 14-31 MeV

被引：1

作者：

Karlsson, M. ^{[1
]}

Adler, J. -O. ^{[1
]}

Andersson, L. E. M. ^{[1
]}

Avdeichikov, V. ^{[1
]}

Berman, B. L. ^{[2
]}

Boland, M. J. ^{[3
]}

Briscoe, W. J. ^{[2
]}

Brudvik, J. ^{[3
]}

Calarco, J. R. ^{[4
]}

Feldman, G. ^{[2
]}

Fissum, K. G. ^{[1
]}

Hansen, K. ^{[3
]}

Hornidge, D. ^{[5
]}

Isaksson, L. ^{[1
]}

Kolb, N. R. ^{[5
]}

Kotov, A. A. ^{[6
]}

Lilja, P. ^{[1
]}

Lundin, M. ^{[1
]}

Nilsson, B. ^{[1
]}

Nilsson, D. ^{[1
]}

O'Rielly, G. V. ^{[2
]}

Petrov, G. E. ^{[6
]}

Schroder, B. ^{[1
]}

Strakovsky, I. I. ^{[2
]}

Vaishnene, L. A. ^{[6
]}

机构：

[1] Lund Univ, Dept Phys, SE-22100 Lund, Sweden

[2] George Washington Univ, Dept Phys, Washington, DC 20052 USA

[3] Lund Univ, Max Lab, SE-22100 Lund, Sweden

[4] Univ New Hampshire, Dept Phys, Durham, NH 03824 USA

[5] Univ Saskatchewan, Dept Phys & Engn Phys, Saskatoon, SK S7N 5E2, Canada

[6] Petersburg Nucl Phys Inst, RU-188350 Gatchina, Russia

来源：

PHYSICAL REVIEW C | 2009年 / 80卷 / 04期

基金：

瑞典研究理事会;

关键词：

D O I：

10.1103/PhysRevC.80.044001

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The two-body photodisintegration of He-3 has been investigated using tagged photons with energies from 14-31 MeV at MAX-lab in Lund, Sweden. The two-body breakup channel was unambiguously identified by the (nonsimultaneous) detection of both protons and deuterons. This approach was made feasible by the overdetermined kinematic situation afforded by the tagged-photon technique. Proton-and deuteron-energy spectra were measured using four silicon surface-barrier detector telescopes located at a laboratory angle of 90 degrees with respect to the incident photon-beam direction. Average statistical and systematic uncertainties of 5.7% and 6.6% in the differential cross section were obtained for 11 photon-energy bins with an average width of 1.2 MeV. The results are compared to previous experimental data measured at comparable photon energies as well as to the results of two recent Faddeev calculations which employ realistic potential models and take into account three-nucleon forces and final-state interactions. Both the accuracy and precision of the present data are improved over those obtained in the previous measurements. The data are in good agreement with most of the previous results, and favor the inclusion of three-nucleon forces in the calculations.

引用

页数：11

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