Composite $W$ Bosons and the $\rho$ Parameter in Weak Interactions

Baur, U.

doi:10.1016/0370-2693(84)91055-4

Composite $W$ Bosons and the $\rho$ Parameter in Weak Interactions

U. Baur
(
- Munich, Max Planck Inst. and
- Munich U.
)

Oct, 1983

5 pages

Published in:

Phys.Lett.B 140 (1984) 96-100

Published: 1984

DOI:

10.1016/0370-2693(84)91055-4

Report number:

MPI-PAE-PTH-72-83

View in:

ADS Abstract Service

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Abstract: (Elsevier)

The ratio of the neutral to charged current Fermi constant ϱ is considered in models in which the weak bosons are bound states of two spin 1 2 constituents. Due to electromagnetic effects ϱ differs slightly from one. We estimate the magnitude of this effect adopting a nonrelativistic bound state picture of the W bosons. One obtains Δϱ = ϱ − 1 ∼ 0.01–0.04, dependending on the potential which confines the W constituents. Finally, we comment on the mass of color-exotic W bosons which appear in some models.

GAUGE BOSON: MODEL
MODEL: COMPOSITE
CHARGED CURRENT
NEUTRAL CURRENT
COUPLING CONSTANT: RATIO
RATIO: COUPLING CONSTANT
INTERMEDIATE BOSON: MASS
MASS: INTERMEDIATE BOSON
NONRELATIVISTIC
NUMERICAL CALCULATIONS

References(15)

Figures(0)

Limit on Mass Differences in the Weinberg Model

M.J.G. Veltman
(
- Utrecht U.
)

- Nucl.Phys.B 123 (1977) 89-99
•
DOI:
- 10.1016/0550-3213(77)90342-X

Are the Weak Interactions Strong?

L.F. Abbott
(
- CERN
)
,
E. Farhi
(
- CERN
)

- Phys.Lett.B 101 (1981) 69-72
•
DOI:
- 10.1016/0370-2693(81)90492-5

A Confining Model of the Weak Interactions

L.F. Abbott
(
- CERN
)
,
E. Farhi
(
- CERN
)

- Nucl.Phys.B 189 (1981) 547-556,
- Also in *Farhi, E. (ed.), Jackiw, R. (ed.): Dynamical Gauge Symmetry Breaking*, 394-403
•
DOI:
- 10.1016/0550-3213(81)90580-0

Weak Interactions as Manifestations of the Substructure of Leptons and Quarks

H. Fritzsch
(
- Munich U. and
- Munich, Max Planck Inst.
)
,
G. Mandelbaum
(
- Munich U. and
- Munich, Max Planck Inst.
)

- Phys.Lett.B 102 (1981) 319-322
•
DOI:
- 10.1016/0370-2693(81)90626-2

A Dynamical Theory for the Rishon Model

Haim Harari
(
- Weizmann Inst.
)
,
Nathan Seiberg
(
- Weizmann Inst.
)

- Phys.Lett.B 98 (1981) 269-273
•
DOI:
- 10.1016/0370-2693(81)90012-5

A Quantum Structure Dynamic Model of Quarks, Leptons, Weak Vector Bosons, and Higgs Mesons

O.W. Greenberg
(
- Maryland U.
)
,
Joseph Sucher
(
- Maryland U.
)

- Phys.Lett.B 99 (1981) 339-343
•
DOI:
- 10.1016/0370-2693(81)90113-1

Compositeness and a Left-Right Symmetric Electroweak Model Without Broken Gauge Interactions

Riccardo Barbieri
(
- CERN
)
,
Rabindra N. Mohapatra
(
- CERN
)
,
A. Masiero
(
- Geneva U. and
- Munich, Max Planck Inst.
)

- Phys.Lett.B 105 (1981) 369-374,
- Phys.Lett.B 107 (1981) 455-456 (erratum)
•
DOI:
- 10.1016/0370-2693(81)90781-4

An Effective Electroweak Lagrangian for Composite Models

- Phys.Rev.D 25 (1982) 2419,
- Pisa Sc. Norm. Sup. - S.N.S. 81-03 (81,REC.FEB.82) 20p
•
DOI:
- 10.1103/PhysRevD.25.2419

Gamma W0 Mixing as an Alternative to Unified Weak Electromagnetic Gauge Theories

Pham Quang Hung
(
- UCLA
)
,
J.J. Sakurai
(
- UCLA
)

- Nucl.Phys.B 143 (1978) 81-113
•
DOI:
- 10.1016/0550-3213(78)90449-2

Neutral Current Results Without Gauge Theories

J.D. Bjorken
(
- SLAC
)

- Phys.Rev.D 19 (1979) 335-346
•
DOI:
- 10.1103/PhysRevD.19.335

The Substructure of the Weak Bosons and the Weak Mixing Angle

H. Fritzsch
(
- CERN and
- Munich, Max Planck Inst.
)
,
G. Mandelbaum
(
- Munich, Max Planck Inst.
)

- Phys.Lett.B 109 (1982) 224-226
•
DOI:
- 10.1016/0370-2693(82)90758-4

Experimental Observation of Lepton Pairs of Invariant Mass Around 95-GeV/c**2 at the CERN SPS Collider

UA1

Collaboration

•

G. Arnison
(
- Rutherford
)

et al.

- Phys.Lett.B 126 (1983) 398-410,
- In *Ithaca 1983, Proceedings, Lepton and Photon Interactions At High Energies*, 27-52,
- IN *BOLOGNA 1984, PROCEEDINGS, FIFTY YEARS OF WEAK-INTERACTION PHYSICS* 779-791. PHYS. LETT. B126 (1983) 398-410) AND CERN GENEVA - CERN-EP 83-073 (83,REC.JUN.) 32 P. (SEE CONFERENCE INDEX),
•
DOI:
- 10.1016/0370-2693(83)90188-0

Further Evidence for Charged Intermediate Vector Bosons at the SPS Collider

UA1

Collaboration

•

G. Arnison
(
- Rutherford
)

et al.

- Phys.Lett.B 129 (1983) 273-282
•
DOI:
- 10.1016/0370-2693(83)90860-2

Evidence for $Z^{0} \to e^+ e^-$ at the CERN $\bar{p} p$ Collider

UA2

Collaboration

•

P. Bagnaia
(
- CERN
)

et al.

- Phys.Lett.B 129 (1983) 130-140,
•
DOI:
- 10.1016/0370-2693(83)90744-X

Weak Current Algebra, Composite W Bosons and Universality of the Weak Interactions

- Phys.Lett.B 114 (1982) 157-161
•
DOI:
- 10.1016/0370-2693(82)90136-8

Composite WWW Bosons and the ρ\rhoρ Parameter in Weak Interactions

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Composite $W$ Bosons and the $\rho$ Parameter in Weak Interactions