B* production in Z decays at LEP - INSPIRE

DataBETA

B* production in Z decays at LEP

L3

Collaboration

Sep, 1994

12 pages

Published in:

Phys.Lett.B 345 (1995) 589-597

DOI:

10.1016/0370-2693(95)01611-S

PDG:

{{\mathit Z}}

\rightarrow

{{\mathit B}}

Report number:

CERN-PPE-94-143

Experiments:

CERN-LEP-L3

View in:

CERN Document Server

reference search76 citations

Citations per year

Abstract: (Elsevier)

The production of B ∗ mesons in Z decays has been measured at LEP with the L3 detector. A sample of Z → b b events was obtained by tagging muons in 1.6 million hadronic Z decays collected in 1991, 1992 and 1993. A signal with a peak value of E γ = 46.3 ± 1.9 (stat) MeV in the B rest frame energy spectrum was interpreted to come from the decay B ∗ → γB. The inclusive production ratio of B ∗ mesons relative to B mesons was determined from a fit to the spectrum to be N B ∗ (N B ∗ + N B ) = 0.76 ± 0.08 ± 0.06 , where the first error is statistical and the second is systematic.

electron positron: colliding beams
colliding beams: electron positron
electron positron: annihilation
annihilation: electron positron
Z0: electroproduction
electroproduction: Z0
Z0: nonleptonic decay
nonleptonic decay: Z0
bottom: pair production
pair production: bottom

References(14)

Figures(0)

Hyperfine splitting of B mesons and B(s) production at the Upsilon (5S)

Juliet Lee-Franzini
(
- SUNY, Stony Brook
)
,
U. Heintz
(
- SUNY, Stony Brook
)
,
D.M.J. Lovelock
(
- SUNY, Stony Brook
)
,
M. Narain
(
- SUNY, Stony Brook
)
,
R.Dean Schamberger
(
- SUNY, Stony Brook
)

et al.

- Phys.Rev.Lett. 65 (1990) 2947-2950
•
DOI:
- 10.1103/PhysRevLett.65.2947

Observation of $B^*$ Production in $e^+ e^-$ Interactions Above the $b$ Flavor Threshold

et al.

- Phys.Rev.Lett. 55 (1985) 36
•
DOI:
- 10.1103/PhysRevLett.55.36

Measurement of the inclusive B* cross-section above the Upsilon (4S)

CLEO-II

Collaboration

•

D.S. Akerib
(
- Caltech
)

et al.

- Phys.Rev.Lett. 67 (1991) 1692-1695
•
DOI:
- 10.1103/PhysRevLett.67.1692

Heavy Quark Systems

Waikwok Kwong
(
- Chicago U., EFI and
- Chicago U.
)
,
Jonathan L. Rosner
(
- Chicago U., EFI and
- Chicago U.
)
,
Chris Quigg
(
- Fermilab
)

- Ann.Rev.Nucl.Part.Sci. 37 (1987) 325-382
•
DOI:
- 10.1146/annurev.ns.37.120187.001545

Production, decay, and polarization of excited heavy hadrons

Adam F. Falk
(
- SLAC
)
,
Michael E. Peskin
(
- SLAC
)

- Phys.Rev.D 49 (1994) 3320-3332
•
e-Print:
- hep-ph/9308241
•
DOI:
- 10.1103/PhysRevD.49.3320

Spin Property of Heavy Hadron in Heavy Quark Fragmentation: A Simple Model

Mahiko Suzuki
(
- UC, Berkeley and
- LBL, Berkeley
)

- Phys.Rev.D 33 (1986) 676
•
DOI:
- 10.1103/PhysRevD.33.676

A Measurement of D meson production in Z0 hadronic decays

DELPHI

Collaboration

•

P. Abreu

et al.

- Z.Phys.C 59 (1993) 533-546,
- Z.Phys.C 65 (1995) 709-710 (erratum)
•
DOI:
- 10.1007/BF01562545

The Construction of the L3 Experiment

L3

Collaboration

•

B. Adeva
(
- CERN
)

et al.

- Nucl.Instrum.Meth.A 289 (1990) 35-102
•
DOI:
- 10.1016/0168-9002(90)90250-A

Construction and performance of the L3 central tracking detector

F. Beissel
(
- Aachen, Tech. Hochsch.
)
,
A. Bohm
(
- Aachen, Tech. Hochsch.
)
,
K. Bosseler
(
- Aachen, Tech. Hochsch.
)
,
C. Camps
(
- Aachen, Tech. Hochsch.
)
,
V. Commichau
(
- Aachen, Tech. Hochsch.
)

et al.

- Nucl.Instrum.Meth.A 332 (1993) 33-55
•
DOI:
- 10.1016/0168-9002(93)90740-9

Hadron calorimetry in the L3 detector

L3

Collaboration

•

O. Adriani
(
- Florence U. and
- INFN, Florence
)

et al.

- Nucl.Instrum.Meth.A 302 (1991) 53-62
•
DOI:
- 10.1016/0168-9002(91)90491-8

Measurement of electroweak parameters from hadronic and leptonic decays of the $Z^0$

L3

Collaboration

•

B. Adeva

et al.

- Z.Phys.C 51 (1991) 179-204,
- Z. Phys. C51 (1991) 179-203 and CERN Geneva - L3-028 (91/02,rec.Mar.) 80 p
•
DOI:
- 10.1007/BF01475788

Measurements of Z0 ---> b anti-b decays and the semileptonic branching ratio Br (b ---> lepton X)

L3

Collaboration

•

B. Adeva
(
- CERN
)

et al.

- Phys.Lett.B 261 (1991) 177-187
•
DOI:
- 10.1016/0370-2693(91)91347-X

The Lund Monte Carlo for Jet Fragmentation and e+ e- Physics: Jetset Version 6.2

Torbjorn Sjostrand
(
- Lund U., Dept. Theor. Phys.
)

- Comput.Phys.Commun. 39 (1986) 347-407
•
DOI:
- 10.1016/0010-4655(86)90096-2

The Lund Monte Carlo for Jet Fragmentation and e+ e- Physics. Jetset Version 6.3: An Update

- Comput.Phys.Commun. 43 (1987) 367
•
DOI:
- 10.1016/0010-4655(87)90054-3