Baryon and lepton number (non)conservation in supersymmetric theories

Lola, S.; Ross, Graham G.

doi:10.1016/0370-2693(93)91246-J

Baryon and lepton number (non)conservation in supersymmetric theories

S. Lola
(
- Oxford U.
)
,
Graham G. Ross
(
- Oxford U.
)

1993

9 pages

Published in:

Phys.Lett.B 314 (1993) 336-344

DOI:

10.1016/0370-2693(93)91246-J

View in:

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Abstract: (Elsevier)

We discuss the origin of baryon and lepton number (non-)conservation in supersymmetric versions of the standard model in which the Higgs mass term is generated via the vacuum expectation value of a singlet field and nucleon stability is guaranteed by a discrete symmetry. We determine the simplest examples satisfying the discrete anomaly cancellation conditions. With only one singlet field present anomaly cancellation can be achieved with nucleon conservation guaranteed at dimension 4 by a matter parity or a lepton parity (a symmetry that allows baryon number violating operators in the low energy lagrangian). If two singlet fields are present, a baryon parity (which allows lepton number violating terms) is also anomaly free. In some cases nucleon decay is further inhibited because all the dimension-five baryon number violating operators are forbidden eliminating the need for any small couplings. We show that such discrete symmetries may also allow a flavour subset of lepton number violating operators, allowing for primordial baryogenesis and non-standard SUSY phenomenology. A novel feature in the latter case is the simultaneous presence of both lepton and baryon number violating operators without disturbing the proton stability.

baryon number: violation
lepton number: violation
supersymmetry
anomaly
nucleon: stability
symmetry: discrete
quantum number
gauge field theory: SU(3) x SU(2) x U(1)
Higgs particle: mass generation
mass generation: Higgs particle

References(26)

Figures(0)

[1]

Softly Broken Supersymmetry and SU(5)

Savas Dimopoulos
(
- Stanford U., ITP and
- Santa Barbara, KITP and
- Michigan U.
)
,
Howard Georgi
(
- Harvard U.
)

- Nucl.Phys.B 193 (1981) 150-162
•
DOI:
- 10.1016/0550-3213(81)90522-8

[1]

Supersymmetry at Ordinary Energies. 1. Masses and Conservation Laws

Steven Weinberg
(
- Harvard U. and
- Texas U.
)

- Phys.Rev.D 26 (1982) 287,
- IN *FERRARA, S. (ED.): SUPERSYMMETRY, VOL. 1*, 699-714. (PHYS. REV. D26 (1982) 287-302) AND HARVARD UNIV. CAMBRIDGE - HUTP-81-A047 (81,REC.MAR.82) 42 P. (SEE BOOK INDEX)
•
DOI:
- 10.1103/PhysRevD.26.287

[1]

Proton Decay in a Class of Supersymmetric Grand Unified Models

N. Sakai
(
- KEK, Tsukuba
)
,
Tsutomu Yanagida
(
- Munich, Max Planck Inst.
)

- Nucl.Phys.B 197 (1982) 533,
- IN *FERRARA, S. (ED.): SUPERSYMMETRY, VOL. 1*, 748-757. (NUCL. PHYS. B197 (1982) 533-542) AND MUENCHEN MPI PHYS. ASTROPHYS. - MPI-PAE-PTH 81-55 (81,REC.NOV.) 22 P. (SEE BOOK INDEX)
•
DOI:
- 10.1016/0550-3213(82)90457-6

[2]

For a review see

H.E. Haber
,
G.L. Kane

- Phys.Rept. 127 (1985) 76

[3]

Explicit R-Parity Breaking in Supersymmetric Models

Lawrence J. Hall
(
- LBL, Berkeley and
- UC, Berkeley
)
,
Mahiko Suzuki
(
- LBL, Berkeley and
- UC, Berkeley
)

- Nucl.Phys.B 231 (1984) 419-444
•
DOI:
- 10.1016/0550-3213(84)90513-3

[3]

Supersymmetric Models with Low-Energy Baryon Number Violation

Riccardo Barbieri
(
- Ecole Normale Superieure
)
,
A. Masiero
(
- INFN, Padua
)

- Nucl.Phys.B 267 (1986) 679-689
•
DOI:
- 10.1016/0550-3213(86)90136-7

[3]

Baryogenesis at the {MeV} Era

- Phys.Lett.B 196 (1987) 135-141
•
DOI:
- 10.1016/0370-2693(87)90593-4

[3]

Some New Aspects of Supersymmetry R-Parity Violating Interactions

Vernon D. Barger
(
- Wisconsin U., Madison
)
,
G.F. Giudice
(
- Fermilab
)
,
Tao Han
(
- Wisconsin U., Madison
)

- Phys.Rev.D 40 (1989) 2987
•
DOI:
- 10.1103/PhysRevD.40.2987

[4]

CERN report CERN 90-10

P. Binetruey

- Proc.ECFA Large Hadron Collider (LHC) Workshop Vol.II (1990) 12

[4]

R-parity violation at hadron colliders

Herbert K. Dreiner
(
- Oxford U.
)
,
Graham G. Ross
(
- Oxford U.
)

- Nucl.Phys.B 365 (1991) 597-613,
- Nucl. Phys. B365 (1991) 597-613 and Oxford Univ. - OUTP-91-15P (91,rec.Jun.) 21 p
•
DOI:
- 10.1016/0550-3213(91)90443-2

[4]

Rare Z0 decay as a probe of R-parity broken supersymmetric models

S. Lola
(
- Oxford U.
)
,
J. McCurry
(
- Oxford U.
)

- Nucl.Phys.B 381 (1992) 559-576
•
DOI:
- 10.1016/0550-3213(92)90490-3

[5]

L.E. Ibanez
,
G.G. Ross

- Nucl.Phys.B 368 (1992) 4

[6]

Supersymmetry, Supergravity and Particle Physics

Hans Peter Nilles
(
- Geneva U. and
- CERN
)

- Phys.Rept. 110 (1984) 1-162
•
DOI:
- 10.1016/0370-1573(84)90008-5

[7]

Higgs Bosons in a Nonminimal Supersymmetric Model

John R. Ellis
(
- SLAC and
- LBL, Berkeley
)
,
J.F. Gunion
(
- UC, Davis
)
,
Howard E. Haber
(
- UC, Santa Cruz
)
,
L. Roszkowski
(
- UC, Davis
)
,
F. Zwirner
(
- UC, Berkeley and
- LBL, Berkeley
)

- Phys.Rev.D 39 (1989) 844
•
DOI:
- 10.1103/PhysRevD.39.844

[8]

Discrete gauge symmetries in axionic extensions of the SSM

E.J. Chun
(
- Munich, Tech. U. and
- Munich, Max Planck Inst.
)
,
A. Lukas
(
- Munich, Tech. U. and
- Munich, Max Planck Inst.
)

- Phys.Lett.B 297 (1992) 298-304
•
e-Print:
- hep-ph/9209208
•
DOI:
- 10.1016/0370-2693(92)91266-C

[9]

A Natural Solution to the mu Problem in Supergravity Theories

G.F. Giudice
(
- SISSA, Trieste and
- INFN, Trieste
)
,
A. Masiero
(
- INFN, Padua
)

- Phys.Lett.B 206 (1988) 480-484,
- PHYS. LETT. B206 (1988) 480-484 AND TRIESTE INT. SCH. ADVANC. STUD. - 88-017 E.P. (88,REC.JUN.) 10 P. (810070)
•
DOI:
- 10.1016/0370-2693(88)91613-9