Proposal for a constant cosmological constant

Goldberg, Haim

doi:10.1016/S0370-2693(00)01045-5

Proposal for a constant cosmological constant

Haim Goldberg
(
- Northeastern U.
)

Mar, 2000

12 pages

Published in:

Phys.Lett.B 492 (2000) 153-160

e-Print:

hep-ph/0003197 [hep-ph]

DOI:

10.1016/S0370-2693(00)01045-5

Report number:

NUB-3208-00-TH

View in:

pdf

reference search23 citations

Citations per year

Abstract:

It is proposed that the apparent positive acceleration of the cosmological scale factor is due to the vacuum energy of an incomplete chiral phase transition in a hidden SU(2) sector. Constraints from primordial nucleosynthesis imply that the present metastable phase is in a substantially supercooled state. It is argued that massless chiral condensates can substantially enhance the possibility of supercooling, and a linear sigma model exhibiting scale invariance broken only at the quantum level is shown to accommodate the required supercooling with a reasonable choice of quartic couplings. The extensive supercooling can in principle be confirmed or rejected on the basis of interface tension measurements in lattice simulations with dynamical fermions.

cosmological constant
astrophysics: acceleration
vacuum state: energy
critical phenomena: chiral
gauge field theory: SU(2)
hidden symmetry
light nucleus: production
condensation: chiral
sigma model: linear
surface tension

References(41)

Figures(0)

Discovery of a supernova explosion at half the age of the Universe and its cosmological implications

Supernova Cosmology Project

Collaboration

•

S. Perlmutter
(
- LBL, Berkeley and
- UC, Berkeley, CfPA
)

et al.

- Nature 391 (1998) 51-54
•
e-Print:
- astro-ph/9712212
•
DOI:
- 10.1038/34124

Measurements of $\Omega$ and $\Lambda$ from 42 High Redshift Supernovae

Supernova Cosmology Project

Collaboration

•

S. Perlmutter
(
- UC, Berkeley, CfPA
)

et al.

- Astrophys.J. 517 (1999) 565-586
•
e-Print:
- astro-ph/9812133
•
DOI:
- 10.1086/307221

Observational evidence from supernovae for an accelerating universe and a cosmological constant

et al.

- Astron.J. 116 (1998) 1009-1038
•
e-Print:
- astro-ph/9805201
•
DOI:
- 10.1086/300499

- Phys.Lett.B 83 670

Dark energy and the CMB

- Phys.Rev.Lett. 84 (2000) 3523
•
e-Print:
- astro-ph/9909454
•
DOI:
- 10.1103/PhysRevLett.84.3523

The Cosmological constant from the viewpoint of string theory

Edward Witten
(
- Caltech and
- CIT-USC
)

•
e-Print:
- hep-ph/0002297

Models and New Phenomenological Implications of a Class of Pseudogoldstone Bosons

Christopher T. Hill
(
- CERN
)
,
Graham G. Ross
(
- CERN
)

- Nucl.Phys.B 311 (1988) 253-297
•
DOI:
- 10.1016/0550-3213(88)90062-4

PseudoGoldstone Bosons and New Macroscopic Forces

Christopher T. Hill
(
- CERN
)
,
Graham G. Ross
(
- CERN
)

- Phys.Lett.B 203 (1988) 125-131
•
DOI:
- 10.1016/0370-2693(88)91583-3

- Phys.Lett.B 75 2077

Dynamical Lambda models of structure formation

Kimberly Coble
(
- Chicago U., Astron. Astrophys. Ctr. and
- Fermilab
)
,
Scott Dodelson
(
- Fermilab
)
,
Joshua A. Frieman
(
- Chicago U., Astron. Astrophys. Ctr. and
- Fermilab
)

- Phys.Rev.D 55 (1997) 1851-1859
•
e-Print:
- astro-ph/9608122
•
DOI:
- 10.1103/PhysRevD.55.1851

Clues to the origin of parsec to kilo-parsec jet misalignments in egret sources

Xinwu Cao

- Astron.Astrophys. 355 (2000) 44
•
e-Print:
- astro-ph/0001168

Late time cosmological phase transitions. 1. Particle physics models and cosmic evolution

- Phys.Rev.D 46 (1992) 1226-1238
•
DOI:
- 10.1103/PhysRevD.46.1226

Cosmology with a Time Variable Cosmological Constant

P.J.E. Peebles
(
- Princeton U.
)
,
Bharat Ratra
(
- Princeton U.
)

- Astrophys.J.Lett. 325 (1988) L17
•
DOI:
- 10.1086/185100

Cosmological imprint of an energy component with general equation of state

R.R. Caldwell
(
- Pennsylvania U.
)
,
Rahul Dave
(
- Pennsylvania U.
)
,
Paul J. Steinhardt
(
- Pennsylvania U.
)

- Phys.Rev.Lett. 80 (1998) 1582-1585
•
e-Print:
- astro-ph/9708069
•
DOI:
- 10.1103/PhysRevLett.80.1582

Quintessence, cosmic coincidence, and the cosmological constant

Ivaylo Zlatev
(
- Pennsylvania U.
)
,
Li-Min Wang
(
- Pennsylvania U.
)
,
Paul J. Steinhardt
(
- Pennsylvania U. and
- Princeton U.
)

- Phys.Rev.Lett. 82 (1999) 896-899
•
e-Print:
- astro-ph/9807002
•
DOI:
- 10.1103/PhysRevLett.82.896

Phenomenology of a realistic accelerating universe using only Planck scale physics

Andreas Albrecht
(
- UC, Davis
)
,
Constantinos Skordis
(
- UC, Davis
)

- Phys.Rev.Lett. 84 (2000) 2076-2079
•
e-Print:
- astro-ph/9908085
•
DOI:
- 10.1103/PhysRevLett.84.2076

Radiative Corrections as the Origin of Spontaneous Symmetry Breaking

Sidney R. Coleman
(
- Harvard U.
)
,
Erick J. Weinberg
(
- Harvard U.
)

- Phys.Rev.D 7 (1973) 1888-1910,
- Also in *Mohapatra, R. N. ( Ed.), Lai, C. H. ( Ed.): Gauge Theories Of Fundamental Interactions*, 57-79,
- In *Abbott, L.F. (ed.), Pi, S.Y. (ed.): Inflationary cosmology*, 589-611.
•
DOI:
- 10.1103/PhysRevD.7.1888

First Order Transitions Induced by Fluctuations in General $\phi^4$ Theories

H.H. Iacobson
(
- Hebrew U.
)
,
D.J. Amit
(
- Hebrew U.
)

- Annals Phys. 133 (1981) 57-78,
- Ann. Phys. ( N.y.) 133 ( 1981) 57-78
•
DOI:
- 10.1016/0003-4916(81)90241-4

- Phys.Rev.D 29 1984

The First Order Finite Temperature Chiral Transition in SU(2) Gauge Theory With Four Flavors

John B. Kogut
(
- Illinois U., Urbana
)

- Nucl.Phys.B 290 (1987) 1-9
•
DOI:
- 10.1016/0550-3213(87)90175-1

The Alignment of the Vacuum in Theories of Technicolor

Michael E. Peskin
(
- Saclay and
- Harvard U.
)

- Nucl.Phys.B 175 (1980) 197-233,
- Also in *Farhi, E. (ed.), Jackiw, R. (ed.): Dynamical Gauge Symmetry Breaking*, 245-281
•
DOI:
- 10.1016/0550-3213(80)90051-6

TeV scale superstring and extra dimensions

Gary Shiu
(
- Cornell U., LNS
)
,
S.H.Henry Tye
(
- Cornell U., LNS
)

- Phys.Rev.D 58 (1998) 106007
•
e-Print:
- hep-th/9805157
•
DOI:
- 10.1103/PhysRevD.58.106007

Generalized limits to the number of light particle degrees of freedom from big bang nucleosynthesis

- Astropart.Phys. 11 (1999) 403-411
•
e-Print:
- hep-ph/9811444
•
DOI:
- 10.1016/S0927-6505(99)00009-2

Sharpening the predictions of big bang nucleosynthesis

Scott Burles
(
- Chicago U., Astron. Astrophys. Ctr. and
- Chicago U., EFI
)
,
Kenneth M. Nollett
(
- Chicago U.
)
,
James W. Truran
(
- Chicago U., Astron. Astrophys. Ctr. and
- Chicago U., EFI
)
,
Michael S. Turner
(
- Chicago U., Astron. Astrophys. Ctr. and
- Chicago U., EFI and
- Chicago U. and
- Fermilab
)