Radiative Pion Capture in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">He</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>4</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>

Arthur Raiche; Carl Werntz

doi:10.1103/PhysRevC.4.2003

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Radiative Pion Capture in ${}^{4}{He}$

Arthur Raiche and Carl Werntz

Physics Department, Catholic University of America, Washington, D. C. 20017

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Phys. Rev. C 4, 2003 – Published 1 December, 1971

DOI: https://doi.org/10.1103/PhysRevC.4.2003

Abstract

The radiative-pion-capture rate from a number of low-lying Bohr orbits in ${}^{4}{He}$ is calculated. It is shown that the peak in the $γ$ spectrum is caused by transitions to broad $2^{-}$ and $1^{-}$ resonances in ${}^{4}{He}$ . The angular correlation of the low-energy neutrons with the direction of the $γ$ ray is shown to be strongly dependent on the orbital-angular-momentum value of the Bohr orbit from which capture occurs, thus affording an independent check of atomic deexcitation studies in pionic atoms.

References (25)

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Omitted endnote
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[c1] J. DeLorme and T. E. O. Ericson, Phys. Letters 21, 98 (1966)

[c2] L. P. Fulcher, R. Guy, J. M. Eisenberg, and H. Pietschmann, Phys. Letters 29B, 338 (1969)

[c3] M. Bander, Phys. Rev. 134, B1052 (1964)

[c4] J. A. Bisterlich, K. M. Crowe, A. S. L. Parsons, P. Skarek, P. Truoel, and C. Werntz, Phys. Rev. Letters 25, 950 (1970)

[c5] D. S. Koltun and A. Reitan, Nucl. Phys. B4, 629 (1968)

[c6] D. S. Koltun and A. Reitan, Phys. Rev. 155, 1139 (1967)

[c7] Y. Eisenberg and D. Kessler, Phys. Rev. 123, 1475 (1961)

[c8] M. Ericson and A. Figereau, Nucl. Phys. B3, 609 (1967)

[c9] S. Berezin, G. Burleson, D. Eartly, A. Roberts, and T. O. White, Nucl. Phys. B16, 389 (1970)

[c10] A. M. Lane and R. G. Thomas, Rev. Mod. Phys. 30, 257 (1958)

[c11] T. A. Tombrello, Phys. Rev. 143, 609 (1966)

[c12] D. H. McSherry and S. D. Baker, Phys. Rev. C 1, 888 (1970)

[c13] P. Szydlik and C. Werntz, Phys. Rev. 138, B866 (1964)

[c14] B. H. Bransden, H. H. Robertson, and P. Swan, Proc. Phys. Soc. (London) 69A, 601 (1956)

[c15] R. Seki and Z. Cromer, Phys. Rev. 156, 93 (1967)

[c16] R. Wetmore, D. Buckle, J. Kane, and R. Siegel, Phys. Rev. Letters 19, 1003 (1967)

[c17] K. A. Brueckner, Phys. Rev. 98, 769 (1955)

[c18] B. R. Barrett, Phys. Rev. 154, 955 (1966)

[c19] G. Sh. Gogsadze and T. I. Kopsleishvili, Yadern. Fiz. 8, 875 (1968) [transl.: Soviet J. Nucl. Phys. 8, 509 (1969)]

[c20] Omitted endnote

[c21] M. Ericson and T. E. O. Ericson, Ann. Phys. (N.Y.) 36, 323 (1966)

[c22] S. Berezin, G. Burleson, D. Eartly, A. Roberts, and T. O. White, Phys. Letters 30B, 27 (1969)

[c23] D. Jenkins and R. Kunselman, Phys. Rev. Letters 17, 1148 (1968)

[c24] D. R. Thompson, Nucl. Phys. A154, 442 (1970)

[c25] S. Skupsky, Phys. Letters 36B, 271 (1971)

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Radiative Pion Capture in ${}^{4}{He}$

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Radiative Pion Capture in He4

Abstract

References (25)

Radiative Pion Capture in ${}^{4}{He}$