Top quark mass from radiative corrections to the Z ---> b anti-b decay

Bernabeu, J.; Pich, A.; Santamaria, A.

doi:10.1016/0550-3213(91)80023-F

Top quark mass from radiative corrections to the Z ---> b anti-b decay

Nov, 1990

19 pages

Published in:

Nucl.Phys.B 363 (1991) 326-344

Published: 1991

DOI:

10.1016/0550-3213(91)80023-F

Report number:

FTUV-90-49,
CERN-TH-5931-90,
IFIC-90-45

View in:

CERN Document Server

reference search206 citations

Citations per year

Abstract: (Elsevier)

The one-loop correction to the Zb b ¯ vertex presents a quadratic dependence on the top quark mass, which has its origin in the spontaneous symmetry breaking mechanism of the Standard Model. We study the possibility of fixing the top mass by comparing LEP measurements with theoretical predictions. Using the MS ¯ renormalization scheme, we calculate the top mass dependence of the Zb b ¯ vertex. For all Z-widths, we give simple approximate formulae which work at the 0.05% level. It is found that if some branching ratios involving the b-quark are measured at the 0.5% level the top mass will be determined with an error of 30 GeV using only LEP1 experiments.

Z0: nonleptonic decay
nonleptonic decay: Z0
Z0: width
width: formula
Z0: branching ratio
bottom
quark: pair production
pair production: quark
top
mass: top

References(19)

Figures(0)

Infrared Singularities and Massive Fields

Thomas Appelquist
(
- Harvard U.
)
,
J. Carazzone
(
- Harvard U.
)

- Phys.Rev.D 11 (1975) 2856,
- In *Lichtenberg, D. B. ( Ed.), Rosen, S. P. ( Ed.): Developments In The Quark Theory Of Hadrons, Vol. 1*, 267-272. ( Phys. Rev. D11 ( 1975) 2856-2861)
•
DOI:
- 10.1103/PhysRevD.11.2856

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

- Nucl.Phys.B 209 359

Flavor Changing Decays of the Z0

M. Clements
(
- Cornell U., LNS
)
,
C. Footman
(
- Cornell U., LNS
)
,
Andreas S. Kronfeld
(
- Cornell U., LNS
)
,
S. Narasimhan
(
- Cornell U., LNS
)
,
D. Photiadis
(
- Cornell U., LNS
)

- Phys.Rev.D 27 (1983) 570
•
DOI:
- 10.1103/PhysRevD.27.570

FLAVOR CHANGING Z DECAYS: A WINDOW TO ULTRAHEAVY QUARKS?

V. Ganapathi
(
- SLAC and
- UC, San Diego
)
,
Thomas J. Weiler
(
- SLAC and
- UC, San Diego
)
,
E. Laermann
(
- Aachen, Tech. Hochsch.
)
,
I. Schmitt
(
- SLAC
)
,
Peter M. Zerwas
(
- SLAC
)

- Phys.Rev.D 27 (1983) 579
•
DOI:
- 10.1103/PhysRevD.27.579

EFFECTIVE FLAVOR CHANGING WEAK NEUTRAL CURRENT IN THE STANDARD THEORY AND Z BOSON DECAY

G. Mann
(
- Humboldt U., Berlin
)
,
T. Riemann
(
- DESY, Zeuthen
)

- Annalen Phys. 40 (1984) 334

Flavor Changing Decays of the $\Z^0$ and Supersymmetry

Malcolm J. Duncan
(
- Michigan U.
)

- Phys.Rev.D 31 (1985) 1139
•
DOI:
- 10.1103/PhysRevD.31.1139

{CP} Violation at the $\Z^0$ Peak

- Phys.Rev.Lett. 57 (1986) 1514
•
DOI:
- 10.1103/PhysRevLett.57.1514

Gamma (Z ---> B anti-B): A Signature of Hard Mass Terms for a Heavy Top

- Phys.Lett.B 200 (1988) 569-574
•
DOI:
- 10.1016/0370-2693(88)90173-6

Electroweak One Loop Corrections to the Decay of the Neutral Vector Boson

- Nucl.Phys.B 276 (1986) 1-13
•
DOI:
- 10.1016/0550-3213(86)90014-3

New bounds on m(t) and first bounds on M(H) from precision electroweak data

John R. Ellis
(
- CERN
)
,
Gian Luigi Fogli
(
- CERN
)

- Phys.Lett.B 249 (1990) 543-550
•
DOI:
- 10.1016/0370-2693(90)91033-8

A Combined Analysis of the Hadronic and Leptonic Decays of the $\Z^0$

OPAL

Collaboration

•

M.Z. Akrawy
(
- Queen Mary, U. of London
)

et al.

- Phys.Lett.B 240 (1990) 497-512
•
DOI:
- 10.1016/0370-2693(90)91137-Z

The Width of the Z Boson

Wim Beenakker
(
- Leiden U.
)
,
Wolfgang Hollik
(
- Hamburg U.
)

- Z.Phys.C 40 (1988) 141
•
DOI:
- 10.1007/BF01559728

Role of $\sin^{2} \theta_{W}(m_Z)$ at the $Z^0$ Peak

A. Sirlin
(
- CERN
)

- Phys.Lett.B 232 (1989) 123-126
•
DOI:
- 10.1016/0370-2693(89)90568-6

Precise SU(5) Predictions for sin**2-Theta(W), m(W) and m(Z)

W.J. Marciano
(
- Northwestern U.
)
,
A. Sirlin
(
- New York U.
)

- Phys.Rev.Lett. 46 (1981) 163
•
DOI:
- 10.1103/PhysRevLett.46.163

Radiative Corrections in the SU(2)-L x U(1) Theory: A Simple Renormalization Framework

A. Sirlin
(
- Princeton, Inst. Advanced Study
)

- Phys.Rev.D 22 (1980) 971-981
•
DOI:
- 10.1103/PhysRevD.22.971

QCD Corrections to the Axial Part of the Z Decay Rate

- Phys.Lett.B 224 (1989) 229-232
•
DOI:
- 10.1016/0370-2693(89)91079-4

- Nucl.Phys.B 239 547

QCD spectral sum rules

Stephan Narison
(
- Montpellier U. and
- CERN
)

- World Sci.Lect.Notes Phys. 26 (1989) 1-527,
- Singapore, Singapore: World Scientific (1989) 527 p. (World Scientific lecture notes in physics, 26)