Photon-induced proton knockout from Pb

I. Bobeldijk; C. Van Den Abeele; J.-O. Adler; B.-E. Andersson; E.C. Aschenauer; L.J. De Bever; D. Branford; S.A. Bulychjov; T. Davinson; K. Hansen; D.G. Ireland; L. Isaksson; D. Ivanov; D.G. Johnstone; A. Khanov; L. Lapikás; L.J. Lindgren; G. De Meyer; B. Nilsson; H. Ruijter; D. Ryckbosch; A. Sandell; A.C. Shotter; B. Schröder; G. Van Der Steenhoven; P. Svensson; M.A. Van Uden; R.E. Van De Vyver

Photon-induced proton knockout from Pb

I. Bobeldijk, C. Van Den Abeele, J.-O. Adler, B.-E. Andersson, E.C. Aschenauer, L.J. De Bever, D. Branford, S.A. Bulychjov, T. Davinson, K. Hansen, D.G. Ireland, L. Isaksson, D. Ivanov, D.G. Johnstone, A. Khanov, L. Lapikás, L.J. Lindgren, G. De Meyer, B. Nilsson, H. RuijterD. Ryckbosch, A. Sandell, A.C. Shotter, B. Schröder, G. Van Der Steenhoven, P. Svensson, M.A. Van Uden, R.E. Van De Vyver

School of Physics and Astronomy

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Abstract

Cross sections have been measured for the reaction Pb(γ,p) leading to the low-lying (1/2, 3/2) and (11/2, 5/2) doublets and 7/2 state in Tl using a high energy-resolution tagged photon beam of 41 to 57 MeV. The data are compared with results obtained with the reaction Pb(e,e′p) in the same recoil-momentum range. The recoil-momentum distributions derived from the (γ,p) data do not coincide with those obtained from the (e,e′p) data. Distorted-wave impulse-approximation (DWIA) calculations of which the input is constrained by the (e,e′p) data underestimate the (γ,p) data by typically one order of magnitude. An estimate of meson-exchange currents (MEC) effects using the Siegert theorem brings the DWIA-calculations close to the data. Random-phase approximation calculations also give a fair account of the data, but in this case MEC-effects are predicted to be less important.

Original language	English
Pages (from-to)	13-18
Number of pages	6
Journal	Physics Letters B
Volume	356
Issue number	1
Publication status	Published - 1 Jan 1995

Cite this

Bobeldijk, I., Van Den Abeele, C., Adler, J-O., Andersson, B-E., Aschenauer, E. C., De Bever, L. J., Branford, D., Bulychjov, S. A., Davinson, T., Hansen, K., Ireland, D. G., Isaksson, L., Ivanov, D., Johnstone, D. G., Khanov, A., Lapikás, L., Lindgren, L. J., De Meyer, G., Nilsson, B., ... Van De Vyver, R. E. (1995). Photon-induced proton knockout from Pb. Physics Letters B, 356(1), 13-18.

Bobeldijk, I. ; Van Den Abeele, C. ; Adler, J.-O. ; Andersson, B.-E. ; Aschenauer, E.C. ; De Bever, L.J. ; Branford, D. ; Bulychjov, S.A. ; Davinson, T. ; Hansen, K. ; Ireland, D.G. ; Isaksson, L. ; Ivanov, D. ; Johnstone, D.G. ; Khanov, A. ; Lapikás, L. ; Lindgren, L.J. ; De Meyer, G. ; Nilsson, B. ; Ruijter, H. ; Ryckbosch, D. ; Sandell, A. ; Shotter, A.C. ; Schröder, B. ; Van Der Steenhoven, G. ; Svensson, P. ; Van Uden, M.A. ; Van De Vyver, R.E. / Photon-induced proton knockout from Pb. In: Physics Letters B. 1995 ; Vol. 356, No. 1. pp. 13-18.

@article{33b4583963064d7e85555411e4dc5399,

title = "Photon-induced proton knockout from Pb",

abstract = "Cross sections have been measured for the reaction Pb(γ,p) leading to the low-lying (1/2, 3/2) and (11/2, 5/2) doublets and 7/2 state in Tl using a high energy-resolution tagged photon beam of 41 to 57 MeV. The data are compared with results obtained with the reaction Pb(e,e′p) in the same recoil-momentum range. The recoil-momentum distributions derived from the (γ,p) data do not coincide with those obtained from the (e,e′p) data. Distorted-wave impulse-approximation (DWIA) calculations of which the input is constrained by the (e,e′p) data underestimate the (γ,p) data by typically one order of magnitude. An estimate of meson-exchange currents (MEC) effects using the Siegert theorem brings the DWIA-calculations close to the data. Random-phase approximation calculations also give a fair account of the data, but in this case MEC-effects are predicted to be less important.",

author = "I. Bobeldijk and {Van Den Abeele}, C. and J.-O. Adler and B.-E. Andersson and E.C. Aschenauer and {De Bever}, L.J. and D. Branford and S.A. Bulychjov and T. Davinson and K. Hansen and D.G. Ireland and L. Isaksson and D. Ivanov and D.G. Johnstone and A. Khanov and L. Lapik{\'a}s and L.J. Lindgren and {De Meyer}, G. and B. Nilsson and H. Ruijter and D. Ryckbosch and A. Sandell and A.C. Shotter and B. Schr{\"o}der and {Van Der Steenhoven}, G. and P. Svensson and {Van Uden}, M.A. and {Van De Vyver}, R.E.",

year = "1995",

month = jan,

day = "1",

language = "English",

volume = "356",

pages = "13--18",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

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Bobeldijk, I, Van Den Abeele, C, Adler, J-O, Andersson, B-E, Aschenauer, EC, De Bever, LJ, Branford, D, Bulychjov, SA, Davinson, T, Hansen, K, Ireland, DG, Isaksson, L, Ivanov, D, Johnstone, DG, Khanov, A, Lapikás, L, Lindgren, LJ, De Meyer, G, Nilsson, B, Ruijter, H, Ryckbosch, D, Sandell, A, Shotter, AC, Schröder, B, Van Der Steenhoven, G, Svensson, P, Van Uden, MA & Van De Vyver, RE 1995, 'Photon-induced proton knockout from Pb', Physics Letters B, vol. 356, no. 1, pp. 13-18.

Photon-induced proton knockout from Pb. / Bobeldijk, I.; Van Den Abeele, C.; Adler, J.-O.; Andersson, B.-E.; Aschenauer, E.C.; De Bever, L.J.; Branford, D.; Bulychjov, S.A.; Davinson, T.; Hansen, K.; Ireland, D.G.; Isaksson, L.; Ivanov, D.; Johnstone, D.G.; Khanov, A.; Lapikás, L.; Lindgren, L.J.; De Meyer, G.; Nilsson, B.; Ruijter, H.; Ryckbosch, D.; Sandell, A.; Shotter, A.C.; Schröder, B.; Van Der Steenhoven, G.; Svensson, P.; Van Uden, M.A.; Van De Vyver, R.E.

In: Physics Letters B, Vol. 356, No. 1, 01.01.1995, p. 13-18.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Photon-induced proton knockout from Pb

AU - Bobeldijk, I.

AU - Van Den Abeele, C.

AU - Adler, J.-O.

AU - Andersson, B.-E.

AU - Aschenauer, E.C.

AU - De Bever, L.J.

AU - Branford, D.

AU - Bulychjov, S.A.

AU - Davinson, T.

AU - Hansen, K.

AU - Ireland, D.G.

AU - Isaksson, L.

AU - Ivanov, D.

AU - Johnstone, D.G.

AU - Khanov, A.

AU - Lapikás, L.

AU - Lindgren, L.J.

AU - De Meyer, G.

AU - Nilsson, B.

AU - Ruijter, H.

AU - Ryckbosch, D.

AU - Sandell, A.

AU - Shotter, A.C.

AU - Schröder, B.

AU - Van Der Steenhoven, G.

AU - Svensson, P.

AU - Van Uden, M.A.

AU - Van De Vyver, R.E.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - Cross sections have been measured for the reaction Pb(γ,p) leading to the low-lying (1/2, 3/2) and (11/2, 5/2) doublets and 7/2 state in Tl using a high energy-resolution tagged photon beam of 41 to 57 MeV. The data are compared with results obtained with the reaction Pb(e,e′p) in the same recoil-momentum range. The recoil-momentum distributions derived from the (γ,p) data do not coincide with those obtained from the (e,e′p) data. Distorted-wave impulse-approximation (DWIA) calculations of which the input is constrained by the (e,e′p) data underestimate the (γ,p) data by typically one order of magnitude. An estimate of meson-exchange currents (MEC) effects using the Siegert theorem brings the DWIA-calculations close to the data. Random-phase approximation calculations also give a fair account of the data, but in this case MEC-effects are predicted to be less important.

AB - Cross sections have been measured for the reaction Pb(γ,p) leading to the low-lying (1/2, 3/2) and (11/2, 5/2) doublets and 7/2 state in Tl using a high energy-resolution tagged photon beam of 41 to 57 MeV. The data are compared with results obtained with the reaction Pb(e,e′p) in the same recoil-momentum range. The recoil-momentum distributions derived from the (γ,p) data do not coincide with those obtained from the (e,e′p) data. Distorted-wave impulse-approximation (DWIA) calculations of which the input is constrained by the (e,e′p) data underestimate the (γ,p) data by typically one order of magnitude. An estimate of meson-exchange currents (MEC) effects using the Siegert theorem brings the DWIA-calculations close to the data. Random-phase approximation calculations also give a fair account of the data, but in this case MEC-effects are predicted to be less important.

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M3 - Article

AN - SCOPUS:0002482065

VL - 356

SP - 13

EP - 18

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 1

ER -

Photon-induced proton knockout from Pb

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