A Measurement of asymmetry in the decay lambda(c)+ ---> lambda pi+ - INSPIRE

DataBETA

A Measurement of asymmetry in the decay lambda(c)+ ---> lambda pi+

ARGUS

Collaboration

Aug, 1991

7 pages

Published in:

Phys.Lett.B 274 (1992) 239-245

Published: 1992

DOI:

10.1016/0370-2693(92)90529-D

PDG:

{{\mathit \Lambda}_{{{c}}}^{+}}

\rightarrow

{{\mathit \Sigma}^{0}}{{\mathit \pi}^{+}}

Report number:

DESY-91-091

Experiments:

DESY-DORIS-ARGUS

reference search60 citations

Citations per year

Abstract: (Elsevier)

Using the ARGUS detector at the e + e − storage ring DORIS II at DESY, we have observed parity violation in the decay Λ ± c → Λπ ± . We measure the coefficient of parity violation, α Λ c , to be −0.96±0.42. In addition, we measure σ BR ( Λ + c → Λπ + and σ BR ( Λ + c → Σ 0 π + ) to be, respectively, (2.2±0.3±0.4) pb and (2.0±0.7±0.4) pb.

electron positron: colliding beams
colliding beams: electron positron
electron positron: annihilation
annihilation: electron positron
mass spectrum: (Lambda pi+)
(Lambda pi+): mass spectrum
mass spectrum: (Sigma0 pi+)
(Sigma0 pi+): mass spectrum
Lambda: nonleptonic decay
nonleptonic decay: Lambda

References(13)

Figures(0)

Exclusive Nonleptonic Decays of D, D(s), and B Mesons

- Z.Phys.C 34 (1987) 103
•
DOI:
- 10.1007/BF01561122

Review of particle properties. Particle Data Group

J.J. Hernandez
(
- Valencia U. and
- CERN and
- Madrid, CIEMAT
)
,
L. Montanet
(
- Valencia U. and
- CERN and
- Madrid, CIEMAT
)
,
K. Gieselmann
(
- Valencia U. and
- CERN and
- Madrid, CIEMAT
)
,
M. Aguilar-Benitez
(
- Valencia U. and
- CERN and
- Madrid, CIEMAT
)
,
J. Stone
(
- Boston U.
)

et al.

- Phys.Lett.B 239 (1990) 1-515,
- Phys.Lett.B 253 (1991) 524-527 (erratum)
•
DOI:
- 10.1016/0370-2693(91)91762-K

Weak Decays of the Charmed Baryon C $_0^+$ and the Inclusive Yield of $\Lambda$ and $p$

- Phys.Lett.B 78 (1978) 492,
- Phys.Lett.B 81 (1979) 419-419 (erratum)
•
DOI:
- 10.1016/0370-2693(78)90495-1

Spin Dependent Decays of the Lambda(c)

James D. Bjorken
(
- Fermilab
)

- Phys.Rev.D 40 (1989) 1513
•
DOI:
- 10.1103/PhysRevD.40.1513

Polarization effects in heavy Lambda decays

Thomas Mannel
(
- Harvard U. and
- DESY
)
,
Winston Roberts
(
- Harvard U.
)
,
Zbigniew Ryzak
(
- Harvard U.
)

- Phys.Lett.B 255 (1991) 593-598
•
DOI:
- 10.1016/0370-2693(91)90273-S

Measurement of the Lambda(c) decay asymmetry parameter

CLEO

Collaboration

•

P. Avery
(
- Florida U.
)

et al.

- Phys.Rev.Lett. 65 (1990) 2842-2845
•
DOI:
- 10.1103/PhysRevLett.65.2842

Observation of the Charmed Baryon $\Lambda(c$ ) in $e^+ e^-$ Annihilation at 10-{GeV}

ARGUS

Collaboration

•

H. Albrecht
(
- DESY
)

et al.

- Phys.Lett.B 207 (1988) 109-114
•
DOI:
- 10.1016/0370-2693(88)90896-9

Measurements of Production Polarization and Decay Asymmetry for $\Xi^-$ Hyperons

R. Rameika
(
- Rutgers U., Piscataway
)
,
A. Beretvas
(
- Rutgers U., Piscataway
)
,
L. Deck
(
- Rutgers U., Piscataway
)
,
T. Devlin
(
- Rutgers U., Piscataway
)
,
K.B. Luk
(
- Rutgers U., Piscataway
)

et al.

- Phys.Rev.D 33 (1986) 3172-3179,
- Phys. Rev. D33 ( 1986) 3172-3179
•
DOI:
- 10.1103/PhysRevD.33.3172

Production and decay of cascade hyperons

- Phys.Rev. 179 (1969) 1262-1285
•
DOI:
- 10.1103/PhysRev.179.1262

Inclusive Production of Multistrange Hyperons From 11-{GeV}/ $c K^- p$ Interactions

et al.

- Phys.Rev.D 32 (1985) 2270
•
DOI:
- 10.1103/PhysRevD.32.2270

ARGUS: A Universal Detector at DORIS-II

ARGUS

Collaboration

•

H. Albrecht
(
- DESY
)

et al.

- Nucl.Instrum.Meth.A 275 (1989) 1-48,
- NUCL. INSTRUM. METHODS A275 (1989) 1-48 AND HAMBURG DESY - DESY 88-080 (88,REC.JUN.) 117p
•
DOI:
- 10.1016/0168-9002(89)90334-3

Scaling Violations in Inclusive e+ e- Annihilation Spectra

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

General Partial Wave Analysis of the Decay of a Hyperon of Spin 1/2

- Phys.Rev. 108 (1957) 1645-1647,
- In *Yang, C.N.: Selected Papers 1945-1980*, 223-224, and in *Feinberg, G. (ed.): T.D. Lee, Selected Papers, Vol. 1*, 11-12
•
DOI:
- 10.1103/PhysRev.108.1645