Supersymmetry and the Nelson-Barr mechanism

Dine, Michael; Leigh, Robert G.; Kagan, Alex

doi:10.1103/PhysRevD.48.2214

Supersymmetry and the Nelson-Barr mechanism

Mar, 1993

21 pages

Published in:

Phys.Rev.D 48 (1993) 2214-2223

e-Print:

hep-ph/9303296 [hep-ph]

DOI:

10.1103/PhysRevD.48.2214

Report number:

SLAC-PUB-6090,
SCIPP-93-05

View in:

links

reference search58 citations

Citations per year

Abstract:

One possible solution to the strong CP problem is that CP is an exact symmetry, spontaneously broken at some scale. Some years ago, Nelson and Barr suggested a mechanism for obtaining

\theta=0

at tree level in this framework, and showed that radiative corrections were small in some non-supersymmetric models. Further investigations suggested that the same could be true in supersymmetric theories. In this note, we show that these analyses assumed an extraordinarily high degree of degeneracy among squark masses. We argue, using a string-inspired model as well as a recent proposal of Barr and Segre as examples, that this is not very plausible.

supersymmetry
CP: violation
spontaneous symmetry breaking
radiative correction
postulated particle: squark
mass: squark
squark: mass
K0 anti-K0
quantum chromodynamics: Theta parameter
perturbation theory

References(31)

Figures(0)

Current Mass Ratios of the Light Quarks

David B. Kaplan
(
- Harvard U.
)
,
Aneesh V. Manohar
(
- Harvard U.
)

- Phys.Rev.Lett. 56 (1986) 2004
•
DOI:
- 10.1103/PhysRevLett.56.2004

Mass Renormalization by Instantons and the Strong {CP} Problem

- Phys.Rev.Lett. 61 (1988) 794
•
DOI:
- 10.1103/PhysRevLett.61.794

CP Conservation in the Presence of Instantons

R.D. Peccei
(
- Stanford U., ITP
)
,
Helen R. Quinn
(
- Stanford U., ITP
)

- Phys.Rev.Lett. 38 (1977) 1440-1443,
•
DOI:
- 10.1103/PhysRevLett.38.1440

A New Light Boson?

Steven Weinberg
(
- Harvard U.
)

- Phys.Rev.Lett. 40 (1978) 223-226,
- Also in *Mohapatra, R. N. (ed.), Lai, C. H. (ed.): Gauge Theories Of Fundamental Interactions*, 396-399
•
DOI:
- 10.1103/PhysRevLett.40.223

Problem of Strong $P$ and $T$ Invariance in the Presence of Instantons

Frank Wilczek
(
- Columbia U. and
- Princeton, Inst. Advanced Study
)

- Phys.Rev.Lett. 40 (1978) 279-282,
- Also in *Mohapatra, R. N. (ed.), Lai, C. H. (ed.): Gauge Theories Of Fundamental Interactions*, 400-403
•
DOI:
- 10.1103/PhysRevLett.40.279

Solving the Strong CP Problem Without the Peccei-Quinn Symmetry

Stephen M. Barr
(
- Washington U., Seattle
)

- Phys.Rev.Lett. 53 (1984) 329
•
DOI:
- 10.1103/PhysRevLett.53.329

Universal Seesaw Mechanism?

Aharon Davidson
(
- Syracuse U.
)
,
Kameshwar C. Wali
(
- Syracuse U.
)

- Phys.Rev.Lett. 59 (1987) 393
•
DOI:
- 10.1103/PhysRevLett.59.393

Small and Calculable Dirac Neutrino Mass

Darwin Chang
(
- Northwestern U.
)
,
Rabindra N. Mohapatra
(
- Maryland U.
)

- Phys.Rev.Lett. 58 (1987) 1600
•
DOI:
- 10.1103/PhysRevLett.58.1600

Phenomenology and Cosmology With Superstrings

George Lazarides
(
- Thessaloniki U.
)
,
C. Panagiotakopoulos
(
- Rockefeller U.
)
,
Q. Shafi
(
- Delaware U., Bartol Inst.
)

- Phys.Rev.Lett. 56 (1986) 432
•
DOI:
- 10.1103/PhysRevLett.56.432

- Phys.Rev.Lett. 65 1549

Light quark masses beyond leading order

John F. Donoghue
(
- Massachusetts U., Amherst
)
,
Daniel Wyler
(
- Zurich U. and
- Santa Barbara, KITP
)

- Phys.Rev.D 45 (1992) 892-909
•
DOI:
- 10.1103/PhysRevD.45.892

A Solution to the Strong {CP} Problem Without an Axion

K.S. Babu
(
- Maryland U.
)
,
Rabindra N. Mohapatra
(
- Maryland U.
)

- Phys.Rev.D 41 (1990) 1286
•
DOI:
- 10.1103/PhysRevD.41.1286

- Phys.Rev.D 45 424

Spontaneous {CP} Violation in Theories With Low-energy Supersymmetry

Stephen M. Barr
(
- Delaware U., Bartol Inst.
)
,
A. Masiero
(
- INFN, Padua
)

- Phys.Rev.D 38 (1988) 366
•
DOI:
- 10.1103/PhysRevD.38.366

Supergravity as the Messenger of Supersymmetry Breaking

- Phys.Rev.D 27 (1983) 2359-2378,
- Texas Univ. Austin - UTTG-83-01 (83,REC.MAR.) 52p,
- Phys. Rev. D27 ( 1983) 2359-2378 and Texas Univ. Austin - UTTG-83-01 (83,REC.MAR.) 52p
•
DOI:
- 10.1103/PhysRevD.27.2359

Cosmology of the Invisible Axion

- Phys.Lett.B 120 (1983) 127-132
•
DOI:
- 10.1016/0370-2693(83)90637-8

A Cosmological Bound on the Invisible Axion

L.F. Abbott
(
- Brandeis U.
)
,
P. Sikivie
(
- Florida U.
)

- Phys.Lett.B 120 (1983) 133-136
•
DOI:
- 10.1016/0370-2693(83)90638-X

The Not So Harmless Axion

- Phys.Lett.B 120 (1983) 137-141
•
DOI:
- 10.1016/0370-2693(83)90639-1

Naturally Weak CP Violation

Ann E. Nelson
(
- Harvard U.
)

- Phys.Lett.B 136 (1984) 387-391
•
DOI:
- 10.1016/0370-2693(84)92025-2

See-saw masses for quarks and leptons in an ambidextrous electroweak interaction model

S. Rajpoot
(
- Oklahoma State U.
)

- Mod.Phys.Lett.A 2 (1987) 5, 307-315,
- Mod.Phys.Lett.A 2 (1987) 75, 541 (erratum)
•
DOI:
- 10.1142/S0217732387000422

Some Properties of O(32) Superstrings

Edward Witten
(
- Princeton U.
)

- Phys.Lett.B 149 (1984) 351-356,
- IN *DINE, M. (ED.): STRING THEORY IN FOUR DIMENSIONS* 43-48. (PHYS. LETT. B149 (1984) 351-356) AND PREPRINT - WITTEN, E. (REC.NOV.84) 12 P. (SEE BOOK INDEX)
•
DOI:
- 10.1016/0370-2693(84)90422-2

A Solution to the Strong {CP} Problem in Superstring Models

J.A. Casas
(
- Oxford U.
)
,
Graham G. Ross
(
- Oxford U.
)

- Phys.Lett.B 192 (1987) 119-124
•
DOI:
- 10.1016/0370-2693(87)91152-X

A Minimal model with natural suppression of strong CP violation

Luis Bento
(
- Lisbon U. and
- Lisbon, IFM
)
,
Gustavo C. Branco
(
- Lisbon, IFM
)
,
Paulo A. Parada
(
- Lisbon, IFM
)

- Phys.Lett.B 267 (1991) 95-99
•
DOI:
- 10.1016/0370-2693(91)90530-4

Soft SUSY breaking terms in stringy scenarios: computation and phenomenological viability

B. de Carlos
(
- Madrid, Inst. Estructura Materia
)
,
J.A. Casas
(
- CERN and
- Madrid, Inst. Estructura Materia
)
,
C. Munoz
(
- Madrid, Autonoma U.
)

- Phys.Lett.B 299 (1993) 234-246
•
e-Print:
- hep-ph/9211266
•
DOI:
- 10.1016/0370-2693(93)90254-F

How precisely can one determine m(mu) / m(d) ?

Kiwoon Choi
(
- UC, San Diego
)

- Nucl.Phys.B 383 (1992) 58-72
•
DOI:
- 10.1016/0550-3213(92)90670-7

1-25 of 31
1
2
25 / page