<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mfrac><mrow><mrow><msup><mrow><mi>ε</mi></mrow><mrow><mo>′</mo></mrow></msup></mrow></mrow><mrow><mi>ε</mi></mrow></mfrac></math></span> in leptoquark and diquark models of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>CP</mi></math></span> violation

S. M. Barr; E. M. Freire

doi:10.1103/PhysRevD.41.2129

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$\frac{ε^{'}}{ε}$ in leptoquark and diquark models of $CP$ violation

S. M. Barr and E. M. Freire

Bartol Research Institute, University of Delaware, Newark, Delaware 19716

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Phys. Rev. D 41, 2129 – Published 1 April, 1990

DOI: https://doi.org/10.1103/PhysRevD.41.2129

Abstract

The strong $CP$ problem is solved in certain models by assuming that $CP$ is broken spontaneously at large scales and that the quark mass matrix is real at the tree level. These models abandon the Kobayashi-Maskawa mechanism and the $CP$ violation in the kaon system must be explained by a superweak or milliweak force mediated by colored scalar bosons. These models come in three types: superweak models, milliweak leptoquark models, and milliweak diquark models. The consequences of $| \frac{ε^{'}}{ε} | = (3.3 = 1.1) \times 10^{- 3}$ for each type is examined as well as the $CP$ phenomenology of the $B^{0} - {\bar{B}}^{0}$ systems.

References (13)

A. Nelson, Phys. Lett. 138B, 387 (1983) ibid.143B, 165 (1984) S. M. Barr, Phys. Rev. Lett. 53, 329 (1984) Phys. Rev. D 30, 1805 (1984)
S. M. Barr and D. Seckel, Nucl. Phys. B233, 116 (1984)
S. M. Barr and A. Zee, Phys. Rev. Lett. 55, 2253 (1985)
L. Hall and L. Randall, Nucl. Phys. B274, 157 (1986) A. Dannenberg, L. Hall, and L. Randall, ibid. B271, 575 (1986)
S. M. Barr, Phys. Rev. D 34, 1567 (1986)
H. Burkhardt et al., Phys. Lett. B 206, 169 (1988)
E-731 Collaboration (unpublished)
J. F. Donoghue, E. Golowich, B. R. Holstein, and W. A. Ponce, Phys. Rev. D 23, 1213 (1981)
CELLO Collaboration, H.-J. Behrend et al., Phys. Lett. B 178, 452 (1986) R. D. Peccei, in CP Violation, edited by C. Jarlskog (World Scientific, Singapore, 1989), pp. 503-551
F. J. Gilman and M. B. Wise, Phys. Rev. D 20, 2392 (1979)
L. Wolfenstein, Phys. Rev. Lett. 51, 1945 (1984)
I. I. Bigi, V. A. Khoze, N. G. Uraltsev, and A. I. Sanda, in CP Violation ([9]), pp. 175-249
A. S. Yelkhovsky, Institute of Nuclear Physics report, Novosibirsk, 1986 (unpublished)

[c1] A. Nelson, Phys. Lett. 138B, 387 (1983) ibid.143B, 165 (1984) S. M. Barr, Phys. Rev. Lett. 53, 329 (1984) Phys. Rev. D 30, 1805 (1984)

[c2] S. M. Barr and D. Seckel, Nucl. Phys. B233, 116 (1984)

[c3] S. M. Barr and A. Zee, Phys. Rev. Lett. 55, 2253 (1985)

[c4] L. Hall and L. Randall, Nucl. Phys. B274, 157 (1986) A. Dannenberg, L. Hall, and L. Randall, ibid. B271, 575 (1986)

[c5] S. M. Barr, Phys. Rev. D 34, 1567 (1986)

[c6] H. Burkhardt et al., Phys. Lett. B 206, 169 (1988)

[c7] E-731 Collaboration (unpublished)

[c8] J. F. Donoghue, E. Golowich, B. R. Holstein, and W. A. Ponce, Phys. Rev. D 23, 1213 (1981)

[c9] CELLO Collaboration, H.-J. Behrend et al., Phys. Lett. B 178, 452 (1986) R. D. Peccei, in CP Violation, edited by C. Jarlskog (World Scientific, Singapore, 1989), pp. 503-551

[c10] F. J. Gilman and M. B. Wise, Phys. Rev. D 20, 2392 (1979)

[c11] L. Wolfenstein, Phys. Rev. Lett. 51, 1945 (1984)

[c12] I. I. Bigi, V. A. Khoze, N. G. Uraltsev, and A. I. Sanda, in CP Violation ([9]), pp. 175-249

[c13] A. S. Yelkhovsky, Institute of Nuclear Physics report, Novosibirsk, 1986 (unpublished)

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$\frac{ε^{'}}{ε}$ in leptoquark and diquark models of $CP$ violation

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ε′ε in leptoquark and diquark models of CP violation

Abstract

References (13)

$\frac{ε^{'}}{ε}$ in leptoquark and diquark models of $CP$ violation