Large R-parity violating couplings and grand unification

Smirnov, Alexei Yu.; Vissani, Francesco

doi:10.1016/0550-3213(95)00615-X

Large R-parity violating couplings and grand unification

Alexei Yu. Smirnov
(
- ICTP, Trieste and
- Moscow, INR
)
,
Francesco Vissani
(
- ICTP, Trieste and
- INFN, Trieste
)

Jun, 1995

25 pages

Published in:

Nucl.Phys.B 460 (1996) 37-56

e-Print:

hep-ph/9506416 [hep-ph]

DOI:

10.1016/0550-3213(95)00615-X

Report number:

IC-95-122

View in:

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Abstract: (Elsevier)

We consider the possibility that R -parity violating interactions of particles which do not involve the first generation have large (up to 1) coupling constants, λ. Such couplings, if they exist, could have a number of phenomenological consequences: renormalization of the b − τ mass ratio, generation of ν τ mass in the MeV region, etc. In grand unified models, where B - and L -violating couplings appear simultaneously, proton decay can be forbidden in virtue of the hierarchical flavor structure of λ. However, due to Cabibbo-Kobayashi-Maskawa mixing this decay is induced already at one loop. Present experimental data give the upper bound λ ⪅ 10 −8 (or | λ ′ λ ″| ⪅ 7 × 10 −16 , on products of certain L - and B -violating coupling constants, in a more general context). The bound can be avoided if there is an asymmetry between the L - and B -violating couplings of the usual matter fields. In the SU (5) model the asymmetry can be related to the doublet-triplet splitting.

Note:

Version published after revision. A discussion of the pattern of the sneutrino vacuum expectation values has been added

R parity: violation
violation: R parity
coupling constant: upper limit
upper limit: coupling constant
mass difference: multiplet
multiplet: mass difference
grand unified theory: SU(5)
supersymmetry
baryon number: violation
lepton number: violation

References(61)

Figures(0)

[1]

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

[1]

The Search for Supersymmetry: Probing Physics Beyond the Standard Model

Howard E. Haber
(
- UC, Santa Cruz and
- SLAC
)
,
Gordon L. Kane
(
- Michigan U.
)

- Phys.Rept. 117 (1985) 75-263
•
DOI:
- 10.1016/0370-1573(85)90051-1

[1]

Searches for new particles in $Z$ decays using the ALEPH detector

ALEPH

Collaboration

•

D. Decamp
(
- Annecy, LAPP
)

et al.

- Phys.Rept. 216 (1992) 253-340
•
DOI:
- 10.1016/0370-1573(92)90177-2

[2]

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

[2]

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]

Phenomenology of Supersymmetry with Broken R-Parity

- Phys.Lett.B 150 (1985) 142-148
•
DOI:
- 10.1016/0370-2693(85)90157-1

[2]

Supersymmetric Models Without R-Parity

Graham G. Ross
(
- Oxford U.
)
,
J.W.F. Valle
(
- Rutherford
)

- Phys.Lett.B 151 (1985) 375-381
•
DOI:
- 10.1016/0370-2693(85)91658-2

[2]

R-Parity Breaking in Supersymmetric Theories

Sally Dawson
(
- LBL, Berkeley
)

- Nucl.Phys.B 261 (1985) 297-318
•
DOI:
- 10.1016/0550-3213(85)90577-2

[2]

Null experiments for neutrino masses

- Mod.Phys.Lett.A 7 (1992) 467-476
•
DOI:
- 10.1142/S0217732392000422

[3]

Observable Delta B=2 Transitions Without Nucleon Decay in a Minimal Supersymmetric Extension of the Standard Model

F. Zwirner
(
- SISSA, Trieste and
- Padua U.
)

- Phys.Lett.B 132 (1983) 103-106,
- Phys. Lett. B135 (1984) 516. ( Phys. Lett. B132 (1983) 103)
•
DOI:
- 10.1016/0370-2693(83)90230-7

[4]

R. Barbieri
,
A. Masiero

- Nucl.Phys.B 267 (1986) 210

[5]

Bounds on $\Delta B = 1$ couplings in the supersymmetric standard model

J.L. Goity
(
- Hampton U. and
- Jefferson Lab
)
,
Marc Sher
(
- William-Mary Coll.
)

- Phys.Lett.B 346 (1995) 69-74,
- Phys.Lett.B 385 (1996) 500 (erratum)
•
e-Print:
- hep-ph/9412208
•
DOI:
- 10.1016/0370-2693(94)01688-9

[6]

B+L violating couplings in the minimal supersymmetric Standard Model

Ian Hinchliffe
(
- LBL, Berkeley
)
,
Thomas Kaeding
(
- LBL, Berkeley
)

- Phys.Rev.D 47 (1993) 279-284
•
DOI:
- 10.1103/PhysRevD.47.279

[6]

Y. Nir
,
V. Ben-Hamo

- Phys.Lett.B 399 (1994) 77

[7]

(B+L) conserving nucleon decays in supersymmetric models

Francesco Vissani
(
- ICTP, Trieste and
- INFN, Trieste
)

- Phys.Rev.D 52 (1995) 4245-4247
•
e-Print:
- hep-ph/9503227
•
DOI:
- 10.1103/PhysRevD.52.4245

[8]

Supersymmetry and Large Transition Magnetic Moment of the Neutrino

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

- Phys.Rev.Lett. 64 (1990) 1705
•
DOI:
- 10.1103/PhysRevLett.64.1705

[8]

Supersymmetry, R-parity breaking and the neutrino magnetic moment

Riccardo Barbieri
(
- Pisa U. and
- CERN
)
,
M.M. Guzzo
(
- SISSA, Trieste
)
,
A. Masiero
(
- INFN, Padua
)
,
D. Tommasini
(
- SISSA, Trieste
)

- Phys.Lett.B 252 (1990) 251-255
•
DOI:
- 10.1016/0370-2693(90)90869-8

[8]

Cosmologically interesting neutrino decay in supersymmetry with broken R-parity

Esteban Roulet
(
- SISSA, Trieste and
- INFN, Trieste
)
,
Daniele Tommasini
(
- SISSA, Trieste and
- INFN, Trieste
)

- Phys.Lett.B 256 (1991) 218-222
•
DOI:
- 10.1016/0370-2693(91)90676-H

[9]

New constraints on R-parity breaking from neutrino physics

K. Enqvist
(
- Nordita
)
,
A. Masiero
(
- Padua U. and
- Bohr Inst.
)
,
A. Riotto
(
- Padua U. and
- Bohr Inst.
)

- Nucl.Phys.B 373 (1992) 95-116
•
DOI:
- 10.1016/0550-3213(92)90451-G

[10]

New Contributions to Neutrinoless Double beta Decay in Supersymmetric Theories

R.N. Mohapatra
(
- Maryland U.
)

- Phys.Rev.D 34 (1986) 3457-3461,
- Maryland Univ. College Park - 86-185 (86,REC.AUG.) 17p,
- Phys. Rev. D34 ( 1986) 3457-3461 and Maryland Univ. College Park - 86-185 (86,REC.AUG.) 17p,
•
DOI:
- 10.1103/PhysRevD.34.3457

[10]

Neutrinoless Double Beta Decay Without Majorana Neutrinos in Supersymmetric Theories

J.D. Vergados
(
- Ioannina U.
)

- Phys.Lett.B 184 (1987) 55-62
•
DOI:
- 10.1016/0370-2693(87)90487-4

[11]

Supersymmetry and neutrinoless double beta decay

- Phys.Rev.D 53 (1996) 1329-1348,
•
e-Print:
- hep-ph/9502385
•
DOI:
- 10.1103/PhysRevD.53.1329

[11]

New vector - scalar contributions to neutrinoless double beta decay and constraints on R-parity violation

K.S. Babu
(
- Delaware U., Bartol Inst.
)
,
R.N. Mohapatra
(
- Maryland U.
)

- Phys.Rev.Lett. 75 (1995) 2276-2279,
•
e-Print:
- hep-ph/9506354
•
DOI:
- 10.1103/PhysRevLett.75.2276

[12]

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

[13]

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

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