Photodisintegration of He-4 into p plus t

CLAS Collaboration; R. Nasseripour; B. L. Berman; N. Benmouna; Y. Ilieva; J. M. Laget; K. P. Adhikari; M. J. Amaryan; P. Ambrozewicz; M. Anghinolfi; H. Baghdasaryan; J. Ball; M. Battaglieri; I. Bedlinskiy; A. S. Biselli; C. Bookwalter; D. Branford; W. J. Briscoe; W. K. Brooks; V. D. Burkert; S. L. Careccia; D. S. Carman; P. L. Cole; P. Collins; P. Corvisiero; A. D'Angelo; A. Daniel; N. Dashyan; R. De Vita; E. De Sanctis; A. Deur; B. Dey; S. Dhamija; R. Dickson; C. Djalali; G. E. Dodge; D. Doughty; R. Dupre; G. Fedotov; S. Fegan; R. Fersch; A. Fradi; M. Y. Gabrielyan; G. P. Gilfoyle; K. L. Giovanetti; F. X. Girod; J. T. Goetz; W. Gohn; M. Mayer; D. P. Watts; J. Zhang

doi:10.1103/PhysRevC.80.044603

Photodisintegration of He-4 into p plus t

CLAS Collaboration, R. Nasseripour, B. L. Berman, N. Benmouna, Y. Ilieva, J. M. Laget, K. P. Adhikari, M. J. Amaryan, P. Ambrozewicz, M. Anghinolfi, H. Baghdasaryan, J. Ball, M. Battaglieri, I. Bedlinskiy, A. S. Biselli, C. Bookwalter, D. Branford, W. J. Briscoe, W. K. Brooks, V. D. BurkertS. L. Careccia, D. S. Carman, P. L. Cole, P. Collins, P. Corvisiero, A. D'Angelo, A. Daniel, N. Dashyan, R. De Vita, E. De Sanctis, A. Deur, B. Dey, S. Dhamija, R. Dickson, C. Djalali, G. E. Dodge, D. Doughty, R. Dupre, G. Fedotov, S. Fegan, R. Fersch, A. Fradi, M. Y. Gabrielyan, G. P. Gilfoyle, K. L. Giovanetti, F. X. Girod, J. T. Goetz, W. Gohn, M. Mayer, D. P. Watts, J. Zhang

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Abstract / Description of output

The two-body photodisintegration of He-4 into a proton and a triton has been studied using the CEBAF Large-Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. Real photons produced with the Hall-B bremsstrahlung-tagging system in the energy range from 0.35 to 1.55 GeV were incident on a liquid He-4 target. This is the first measurement of the photodisintegration of He-4 above 0.4 GeV. The differential cross sections for the gamma He-4 -> pt reaction were measured as a function of photon-beam energy and proton-scattering angle and are compared with the latest model calculations by J.-M. Laget. At 0.6-1.2 GeV, our data are in good agreement only with the calculations that include three-body mechanisms, thus confirming their importance. These results reinforce the conclusion of our previous study of the three-body breakup of He-3 that demonstrated the great importance of three-body mechanisms in the energy region 0.5-0.8 GeV.

Original language	English
Article number	044603
Pages (from-to)	-
Number of pages	11
Journal	Physical Review C
Volume	80
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.80.044603
Publication status	Published - Oct 2009

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CLAS Collaboration, Nasseripour, R., Berman, B. L., Benmouna, N., Ilieva, Y., Laget, J. M., Adhikari, K. P., Amaryan, M. J., Ambrozewicz, P., Anghinolfi, M., Baghdasaryan, H., Ball, J., Battaglieri, M., Bedlinskiy, I., Biselli, A. S., Bookwalter, C., Branford, D., Briscoe, W. J., Brooks, W. K., ... Zhang, J. (2009). Photodisintegration of He-4 into p plus t. Physical Review C, 80(4), -. Article 044603. https://doi.org/10.1103/PhysRevC.80.044603

@article{08aa697170bb425ea33ae9be9bf44fac,

title = "Photodisintegration of He-4 into p plus t",

abstract = "The two-body photodisintegration of He-4 into a proton and a triton has been studied using the CEBAF Large-Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. Real photons produced with the Hall-B bremsstrahlung-tagging system in the energy range from 0.35 to 1.55 GeV were incident on a liquid He-4 target. This is the first measurement of the photodisintegration of He-4 above 0.4 GeV. The differential cross sections for the gamma He-4 -> pt reaction were measured as a function of photon-beam energy and proton-scattering angle and are compared with the latest model calculations by J.-M. Laget. At 0.6-1.2 GeV, our data are in good agreement only with the calculations that include three-body mechanisms, thus confirming their importance. These results reinforce the conclusion of our previous study of the three-body breakup of He-3 that demonstrated the great importance of three-body mechanisms in the energy region 0.5-0.8 GeV.",

author = "{CLAS Collaboration} and R. Nasseripour and Berman, {B. L.} and N. Benmouna and Y. Ilieva and Laget, {J. M.} and Adhikari, {K. P.} and Amaryan, {M. J.} and P. Ambrozewicz and M. Anghinolfi and H. Baghdasaryan and J. Ball and M. Battaglieri and I. Bedlinskiy and Biselli, {A. S.} and C. Bookwalter and D. Branford and Briscoe, {W. J.} and Brooks, {W. K.} and Burkert, {V. D.} and Careccia, {S. L.} and Carman, {D. S.} and Cole, {P. L.} and P. Collins and P. Corvisiero and A. D'Angelo and A. Daniel and N. Dashyan and {De Vita}, R. and {De Sanctis}, E. and A. Deur and B. Dey and S. Dhamija and R. Dickson and C. Djalali and Dodge, {G. E.} and D. Doughty and R. Dupre and G. Fedotov and S. Fegan and R. Fersch and A. Fradi and Gabrielyan, {M. Y.} and Gilfoyle, {G. P.} and Giovanetti, {K. L.} and Girod, {F. X.} and Goetz, {J. T.} and W. Gohn and M. Mayer and Watts, {D. P.} and J. Zhang",

year = "2009",

month = oct,

doi = "10.1103/PhysRevC.80.044603",

language = "English",

volume = "80",

pages = "--",

journal = "Physical Review C",

issn = "0556-2813",

publisher = "American Physical Society",

number = "4",

}

CLAS Collaboration, Nasseripour, R, Berman, BL, Benmouna, N, Ilieva, Y, Laget, JM, Adhikari, KP, Amaryan, MJ, Ambrozewicz, P, Anghinolfi, M, Baghdasaryan, H, Ball, J, Battaglieri, M, Bedlinskiy, I, Biselli, AS, Bookwalter, C, Branford, D, Briscoe, WJ, Brooks, WK, Burkert, VD, Careccia, SL, Carman, DS, Cole, PL, Collins, P, Corvisiero, P, D'Angelo, A, Daniel, A, Dashyan, N, De Vita, R, De Sanctis, E, Deur, A, Dey, B, Dhamija, S, Dickson, R, Djalali, C, Dodge, GE, Doughty, D, Dupre, R, Fedotov, G, Fegan, S, Fersch, R, Fradi, A, Gabrielyan, MY, Gilfoyle, GP, Giovanetti, KL, Girod, FX, Goetz, JT, Gohn, W, Mayer, M, Watts, DP & Zhang, J 2009, 'Photodisintegration of He-4 into p plus t', Physical Review C, vol. 80, no. 4, 044603, pp. -. https://doi.org/10.1103/PhysRevC.80.044603

TY - JOUR

T1 - Photodisintegration of He-4 into p plus t

AU - CLAS Collaboration

AU - Nasseripour, R.

AU - Berman, B. L.

AU - Benmouna, N.

AU - Ilieva, Y.

AU - Laget, J. M.

AU - Adhikari, K. P.

AU - Amaryan, M. J.

AU - Ambrozewicz, P.

AU - Anghinolfi, M.

AU - Baghdasaryan, H.

AU - Ball, J.

AU - Battaglieri, M.

AU - Bedlinskiy, I.

AU - Biselli, A. S.

AU - Bookwalter, C.

AU - Branford, D.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Burkert, V. D.

AU - Careccia, S. L.

AU - Carman, D. S.

AU - Cole, P. L.

AU - Collins, P.

AU - Corvisiero, P.

AU - D'Angelo, A.

AU - Daniel, A.

AU - Dashyan, N.

AU - De Vita, R.

AU - De Sanctis, E.

AU - Deur, A.

AU - Dey, B.

AU - Dhamija, S.

AU - Dickson, R.

AU - Djalali, C.

AU - Dodge, G. E.

AU - Doughty, D.

AU - Dupre, R.

AU - Fedotov, G.

AU - Fegan, S.

AU - Fersch, R.

AU - Fradi, A.

AU - Gabrielyan, M. Y.

AU - Gilfoyle, G. P.

AU - Giovanetti, K. L.

AU - Girod, F. X.

AU - Goetz, J. T.

AU - Gohn, W.

AU - Mayer, M.

AU - Watts, D. P.

AU - Zhang, J.

PY - 2009/10

Y1 - 2009/10

N2 - The two-body photodisintegration of He-4 into a proton and a triton has been studied using the CEBAF Large-Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. Real photons produced with the Hall-B bremsstrahlung-tagging system in the energy range from 0.35 to 1.55 GeV were incident on a liquid He-4 target. This is the first measurement of the photodisintegration of He-4 above 0.4 GeV. The differential cross sections for the gamma He-4 -> pt reaction were measured as a function of photon-beam energy and proton-scattering angle and are compared with the latest model calculations by J.-M. Laget. At 0.6-1.2 GeV, our data are in good agreement only with the calculations that include three-body mechanisms, thus confirming their importance. These results reinforce the conclusion of our previous study of the three-body breakup of He-3 that demonstrated the great importance of three-body mechanisms in the energy region 0.5-0.8 GeV.

AB - The two-body photodisintegration of He-4 into a proton and a triton has been studied using the CEBAF Large-Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. Real photons produced with the Hall-B bremsstrahlung-tagging system in the energy range from 0.35 to 1.55 GeV were incident on a liquid He-4 target. This is the first measurement of the photodisintegration of He-4 above 0.4 GeV. The differential cross sections for the gamma He-4 -> pt reaction were measured as a function of photon-beam energy and proton-scattering angle and are compared with the latest model calculations by J.-M. Laget. At 0.6-1.2 GeV, our data are in good agreement only with the calculations that include three-body mechanisms, thus confirming their importance. These results reinforce the conclusion of our previous study of the three-body breakup of He-3 that demonstrated the great importance of three-body mechanisms in the energy region 0.5-0.8 GeV.

U2 - 10.1103/PhysRevC.80.044603

DO - 10.1103/PhysRevC.80.044603

M3 - Article

SN - 0556-2813

VL - 80

SP - -

JO - Physical Review C

JF - Physical Review C

IS - 4

M1 - 044603

ER -

Photodisintegration of He-4 into p plus t

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