Production of charged particles, K0(s), K+-, p and Lambda in Z --> b anti-b events and in the decay of b hadrons

A sample of events enriched in bb̄ quark pairs was selected in the data recorded by the DELPHI experiment at LEP during 1992 and 1993, by the presence of secondary decay vertices from short-lived particles. Using this sample, the average multiplicities of K s 0 , K ± , p(p̄), Λ( Λ ) and of charged particles in bb̄ events have been measured, distinguishing the component from fragmentation and the component coming from the decay of b-hadrons. The measurement of the average charge multiplicity in bb̄ events was used to compute the mean fractional beam energy carried by the primary b-hadron, and the difference in charged particle multiplicity between bb̄ events and light quark (uū, dd̄, ss̄) events.

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(40)

Figures(0)

Measurement of the charged multiplicity of events containing bottom hadrons at E(cm) = 91-GeV

et al.

- Phys.Rev.D 46 (1992) 453-456
•
DOI:
- 10.1103/PhysRevD.46.453

Studies of charged particle multiplicity in b quark events

OPAL

Collaboration

•

R. Akers

et al.

- Z.Phys.C 61 (1994) 209-222
•
DOI:
- 10.1007/BF01413098

Measurement of the charged multiplicity of Z0 ---> b anti-b events

SLD

Collaboration

•

K. Abe

et al.

- Phys.Rev.Lett. 72 (1994) 3145-3149
•
e-Print:
- hep-ex/9405004
•
DOI:
- 10.1103/PhysRevLett.72.3145

The Lund Monte Carlo for e+ e- Jet Physics

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

- Comput.Phys.Commun. 28 (1983) 229,
- Comput. Phys. Commun. 28 ( 1983) 229-254 and Lund Univ. - LU TP 82-07 (82,REC.JUL.) 42p
•
DOI:
- 10.1016/0010-4655(83)90041-3

The DELPHI detector at LEP

DELPHI

Collaboration

•

P.A. Aarnio

et al.

- Nucl.Instrum.Meth.A 303 (1991) 233-276
•
DOI:
- 10.1016/0168-9002(91)90793-P

Study of Hadronic Decays of the $\Z^0$ Boson

DELPHI

Collaboration

•

P. Aarnio
(
- Helsinki U.
)

et al.

- Phys.Lett.B 240 (1990) 271-282
•
DOI:
- 10.1016/0370-2693(90)90445-C

Scaling Violations in Inclusive e+ e- Annihilation Spectra

- Phys.Rev.D 27 (1983) 105
•
DOI:
- 10.1103/PhysRevD.27.105

Simulation of QCD Jets Including Soft Gluon Interference

G. Marchesini
(
- Parma U. and
- INFN, Milan
)
,
B.R. Webber
(
- CERN
)

- Nucl.Phys.B 238 (1984) 1-29
•
DOI:
- 10.1016/0550-3213(84)90463-2

A Precise measurement of Gamma ( $Z \to b \bar{b}$ ) / Gamma ( $Z \to$ hadrons)

ALEPH

Collaboration

•

D. Buskulic
(
- Annecy, LAPP
)

et al.

- Phys.Lett.B 313 (1993) 535-548,
- Phys. Lett. B313 (1993) 535-548 and CERN Geneva - CERN-PPE-93-108 (93/06,rec.Sep.) 16 p
•
DOI:
- 10.1016/0370-2693(93)90028-G

Heavy flavor physics at colliders with silicon strip vertex detectors

Andreas S. Schwarz
(
- Munich, Max Planck Inst.
)

- Phys.Rept. 238 (1994) 1-133
•
DOI:
- 10.1016/0370-1573(94)90020-5

CHERENKOV RING SEARCH USING A MAXIMUM LIKELIHOOD TECHNIQUE

P. Baillon
(
- CERN
)

- Nucl.Instrum.Meth.A 238 (1985) 341
•
DOI:
- 10.1016/0168-9002(85)90471-1

An Investigation of Multiplicity Distributions in Different Pseudorapidity Intervals in anti-p p Reactions at a CMS Energy of 540-GeV

UA5

Collaboration

•

G.J. Alner
(
- Cambridge U.
)

et al.

- Phys.Lett.B 160 (1985) 193-198
•
DOI:
- 10.1016/0370-2693(85)91491-1

Negative Binomial Multiplicity Distributions in High-Energy Hadron Collisions

Alberto Giovannini
(
- Turin U. and
- INFN, Turin
)
,
L. Van Hove
(
- CERN
)

- Z.Phys.C 30 (1986) 391,
•
DOI:
- 10.1007/BF01557602

Charged particle multiplicity distributions in Z0 hadronic decays

DELPHI

Collaboration

•

P. Abreu

et al.

- Z.Phys.C 50 (1991) 185-194
•
DOI:
- 10.1007/BF01474073

Review of particle properties. Particle Data Group

et al.

- Phys.Rev.D 50 (1994) 1173-1823
•
DOI:
- 10.1103/PhysRevD.50.1173

Particle spectra in light and heavy quark jets

Yuri L. Dokshitzer
(
- Lund U. and
- St. Petersburg, INP
)
,
Valery A. Khoze
(
- Lund U. and
- St. Petersburg, INP
)
,
S.I. Troian
(
- Lund U. and
- St. Petersburg, INP
)

- J.Phys.G 17 (1991) 1481-1492,
- In *Durham 1990, Jet studies at LEP and HERA* A55-A70
•
DOI:
- 10.1088/0954-3899/17/10/003

On specific QCD properties of heavy quark fragmentation ('dead cone')

Yuri L. Dokshitzer
(
- Lund U. and
- St. Petersburg, INP
)
,
Valery A. Khoze
(
- Lund U. and
- St. Petersburg, INP
)
,
S.I. Troian
(
- Lund U. and
- St. Petersburg, INP
)

- J.Phys.G 17 (1991) 1602-1604,
- In *Durham 1990, Jet studies at LEP and HERA* C41-C44
•
DOI:
- 10.1088/0954-3899/17/10/023

Preconfinement as a Property of Perturbative QCD

D. Amati
(
- CERN
)
,
G. Veneziano
(
- CERN
)

- Phys.Lett.B 83 (1979) 87-92
•
DOI:
- 10.1016/0370-2693(79)90896-7

Similarity of Parton and Hadron Spectra in QCD Jets

Yakov I. Azimov
(
- St. Petersburg, INP
)
,
Yuri L. Dokshitzer
(
- St. Petersburg, INP
)
,
Valery A. Khoze
(
- St. Petersburg, INP
)
,
S.I. Troyan
(
- St. Petersburg, INP
)

- Z.Phys.C 27 (1985) 65-72
•
DOI:
- 10.1007/BF01642482

MLLA and the average charged multiplicity of events containing heavy quarks in e+ e- annihilation

Bruce A. Schumm
(
- LBL, Berkeley
)
,
Yuri L. Dokshitzer
(
- Lund U.
)
,
Valery A. Khoze
(
- Durham U. and
- SLAC
)
,
Dale S. Koetke
(
- CERN
)

- Phys.Rev.Lett. 69 (1992) 3025-3028
•
DOI:
- 10.1103/PhysRevLett.69.3025

Charged Multiplicity of Hadronic Events Containing Heavy Quark Jets

et al.

- Phys.Rev.Lett. 54 (1985) 2580-2583
•
DOI:
- 10.1103/PhysRevLett.54.2580

Average Charged Multiplicities in $Q \bar{Q}$ Events ( $Q = c$ , $b$ , T) at {LEP} Energies

- Z.Phys.C 41 (1988) 521
•
DOI:
- 10.1007/BF01585639

Experimental study of b quark jets in e+ e- annihilation at TRISTAN

TOPAZ

Collaboration

•

K. Nagai
(
- Kobe U.
)

et al.

- Phys.Lett.B 278 (1992) 506-510
•
DOI:
- 10.1016/0370-2693(92)90593-S

A Study of Jets From $b$ Quarks Produced in $e^+ e^-$ Annihilations at $\sqrt{s}=35$ -{GeV} to 46-{GeV}.

TASSO

Collaboration

•

W. Braunschweig
(
- Aachen, Tech. Hochsch.
)

et al.

- Z.Phys.C 42 (1989) 17,
- Preprint - BRAUNSCHWEIG, W. (87,REC.JUL.) 47p,
- HAMBURG DESY - DESY 88-112 (88,REC.AUG.) 38p,
- Z. PHYS. C42 (1989) 17-31 AND HAMBURG DESY - DESY 88-112 (88,REC.AUG.) 38p
•
DOI:
- 10.1007/BF01565125

Properties of Bottom Quark Jets in $e^+ e^-$ Annihilation at 29-{GeV}

DELCO

Collaboration

•

M. Sakuda
(
- Caltech and
- SLAC and
- Stanford U., Phys. Dept.
)

et al.

- Phys.Lett.B 152 (1985) 399-403
•
DOI:
- 10.1016/0370-2693(85)90518-0

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