Bound on <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>CP</mi></math></span> Nonconservation in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi>K</mi></mrow><mrow><mi>L</mi></mrow></msub></mrow><mo>→</mo><mn>2</mn><mi>γ</mi></math></span> Decay

Glennys R. Farrar; S. B. Treiman

doi:10.1103/PhysRevD.4.257

Access by Xinjiang University

Bound on $CP$ Nonconservation in $K_{L} \to 2 γ$ Decay

Glennys R. Farrar and S. B. Treiman

Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08540

PDF

Phys. Rev. D 4, 257 – Published 1 July, 1971

DOI: https://doi.org/10.1103/PhysRevD.4.257

Abstract

The surprisingly small upper bound recently established for $K_{L} \to μ^{+} + μ^{-}$ decay is exploited, via unitarity, to set an upper bound on $K_{L}$ decay to a two-photon state with spin-parity $0^{+}$ . Special circumstances operate here to lend a fair degree of credibility to the analysis. The fraction of $K_{L} \to 2 γ$ decays which proceed in this $CP$ -nonconserving mode is less than ∼0.37.

References (9)

M. A. Baqi Bég, Phys. Rev. 132, 426 (1963)
A. R. Clark, T. Elioff, R. C. Field, H. J. Frisch, R. P. Johnson, L. T. Kerth, and W. A. Wenzel, Phys. Rev. Letters 26, 1667 (1971)
C. Quigg and J. D. Jackson, Lawrence Radiation Laboratory Report No. UCRL-18487 (unpublished) L. M. Sehgal, Nuovo Cimento 45, 785 (1966) Phys. Rev. 183, 1511 (1969)
B. R. Martin, E. de Rafael, and J. Smith, Phys. Rev. D 2, 179 (1970)
J. Bernstein, G. Feinberg, and T. D. Lee, Phys. Rev. 139, 1650 (1965)
L. M. Sehgal and L. Wolfenstein, Phys. Rev. 162, 1362 (1967) B. R. Martin and E. de Rafael, Nucl. Phys. B8, 131 (1968)
[4]
[M. Banner, J. W. Cronin, J. K. Liu, and J. E. Pilcher, Phys. Rev. Letters 21, 1103 (1968)] [R. Arnold, I. A. Budakov, D. C. Cundy, G. Myatt, F. Nezrick, G. H. Trilling, W. Venus, H. Yoshiki, B. Aubert, P. Heusse, E. Nagy, and C. Pascaud, Phys. Letters 28B, 56 (1968)]
R. C. Thatcher, A. Abashian, R. J. Adams, D. W. Carpenter, R. E. Mischke, B. M. K. Nefkens, J. H. Smith, L. J. Verhey, and A. Wattenburg, Phys. Rev. 174, 1674 (1968)

[c1] M. A. Baqi Bég, Phys. Rev. 132, 426 (1963)

[c2] A. R. Clark, T. Elioff, R. C. Field, H. J. Frisch, R. P. Johnson, L. T. Kerth, and W. A. Wenzel, Phys. Rev. Letters 26, 1667 (1971)

[c3] C. Quigg and J. D. Jackson, Lawrence Radiation Laboratory Report No. UCRL-18487 (unpublished) L. M. Sehgal, Nuovo Cimento 45, 785 (1966) Phys. Rev. 183, 1511 (1969)

[c4] B. R. Martin, E. de Rafael, and J. Smith, Phys. Rev. D 2, 179 (1970)

[c5] J. Bernstein, G. Feinberg, and T. D. Lee, Phys. Rev. 139, 1650 (1965)

[c6] L. M. Sehgal and L. Wolfenstein, Phys. Rev. 162, 1362 (1967) B. R. Martin and E. de Rafael, Nucl. Phys. B8, 131 (1968)

[c7] [4]

[c8] [M. Banner, J. W. Cronin, J. K. Liu, and J. E. Pilcher, Phys. Rev. Letters 21, 1103 (1968)] [R. Arnold, I. A. Budakov, D. C. Cundy, G. Myatt, F. Nezrick, G. H. Trilling, W. Venus, H. Yoshiki, B. Aubert, P. Heusse, E. Nagy, and C. Pascaud, Phys. Letters 28B, 56 (1968)]

[c9] R. C. Thatcher, A. Abashian, R. J. Adams, D. W. Carpenter, R. E. Mischke, B. M. K. Nefkens, J. H. Smith, L. J. Verhey, and A. Wattenburg, Phys. Rev. 174, 1674 (1968)

Physical Review D

Export citation

Export citation

Bound on $CP$ Nonconservation in $K_{L} \to 2 γ$ Decay

Abstract

References (9)

Outline

Information

Filter

Filter

Article Lookup

Enter a citation

Bound on CP Nonconservation in KL→2γ Decay

Abstract

References (9)

Bound on $CP$ Nonconservation in $K_{L} \to 2 γ$ Decay