Inclusive Baryon Production in e+ e- Annihilation

Piccolo, M.; Peruzzi, I.; Luke, D.; Luth, V.; Richter, Burton; Abrams, G.S.; Alam, M.S.; Barbaro-Galtieri, Angela; Boyarski, A.; Breidenbach, Martin

doi:10.1103/PhysRevLett.39.1503

Inclusive Baryon Production in e+ e- Annihilation

Oct, 1977

11 pages

Published in:

Phys.Rev.Lett. 39 (1977) 1503

DOI:

10.1103/PhysRevLett.39.1503

Report number:

SLAC-PUB-2023,
LBL-6775

Experiments:

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Abstract: (APS)

The inclusive production of antiprotons and Λ's in e+e− annihilation has been measured as a function of the c.m. energy in the range 3.7-7.6 GeV. We find that the baryon cross section has a behavior different from the total hadronic production. Our results show a rapid rise in the ratio σp¯σμμ between 4.4 and 5 GeV, consistent with what would be expected from charmed baryon production. Λ¯ production is 10-15% of p¯ production at all energies.

ELECTRON POSITRON: ANNIHILATION
ANNIHILATION: ELECTRON POSITRON
ELECTRON POSITRON: COLLIDING BEAMS
COLLIDING BEAMS: ELECTRON POSITRON
ELECTRON POSITRON: INCLUSIVE REACTION
ANTI-P: ELECTROPRODUCTION
ELECTROPRODUCTION: ANTI-P
LAMBDA: ELECTROPRODUCTION
ELECTROPRODUCTION: LAMBDA
ANTILAMBDA: ELECTROPRODUCTION

References(12)

Figures(0)

Hadron Masses in a Gauge Theory

- Phys.Rev.D 12 (1975) 147-162,
- In *Lichtenberg, D. B. ( Ed.), Rosen, S. P. ( Ed.): Developments In The Quark Theory Of Hadrons, Vol.*, 273-288. ( Phys. Rev. D12 ( 1975) 147-162)
•
DOI:
- 10.1103/PhysRevD.12.147

Charmed Baryon Interpretation of $\bar{\Lambda} \pi^- \pi^- \pi^+$ and $\bar{\Lambda} \pi^- \pi^- \pi^+ \pi^{\pm}$ Peaks

- Phys.Rev.D 15 (1977) 157
•
DOI:
- 10.1103/PhysRevD.15.157

Measurement of e+ e- ---> e+ e- and e+ e- ---> mu+ mu- at SPEAR

et al.

- Phys.Rev.Lett. 34 (1975) 233
•
DOI:
- 10.1103/PhysRevLett.34.233

Mesonic Decays of the psi (3095)

F. Vannucci
(
- LBL, Berkeley and
- UC, Berkeley and
- SLAC
)
,
G.S. Abrams
(
- LBL, Berkeley and
- UC, Berkeley and
- SLAC
)
,
M.S. Alam
(
- LBL, Berkeley and
- UC, Berkeley and
- SLAC
)
,
A. Boyarski
(
- LBL, Berkeley and
- UC, Berkeley and
- SLAC
)
,
Martin Breidenbach
(
- LBL, Berkeley and
- UC, Berkeley and
- SLAC
)

et al.

- Phys.Rev.D 15 (1977) 1814
•
DOI:
- 10.1103/PhysRevD.15.1814

Observation of New Particle Production by High-Energy Neutrinos and anti-neutrinos

et al.

- Phys.Rev.Lett. 34 (1975) 419
•
DOI:
- 10.1103/PhysRevLett.34.419

Observation of a Narrow Charged State at 1876-MeV/c**2 Decaying to an Exotic Combination of K pi pi

I. Peruzzi
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
M. Piccolo
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
G.J. Feldman
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
H.K. Nguyen
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
J. Wiss
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)

et al.

- Phys.Rev.Lett. 37 (1976) 569-571,
- In *Rosner, J. L. ( Ed.): New Particles*, 71-73. ( Phys. Rev. Lett. 37 ( 1976) 569-571 and SLAC Stanford - SLAC-PUB-1776 (76,REC.AUG.) 8p
•
DOI:
- 10.1103/PhysRevLett.37.569

Observation of the Decay D*+ --> D0 pi+

G.J. Feldman
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
I. Peruzzi
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
M. Piccolo
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
G.S. Abrams
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)
,
M.S. Alam
(
- SLAC and
- LBL, Berkeley and
- UC, Berkeley
)

et al.

- Phys.Rev.Lett. 38 (1977) 1313
•
DOI:
- 10.1103/PhysRevLett.38.1313

D and D* Meson Production Near 4-GeV in e+ e- Annihilation

G. Goldhaber
(
- UC, Berkeley and
- LBL, Berkeley and
- SLAC
)
,
J. Wiss
(
- UC, Berkeley and
- LBL, Berkeley and
- SLAC
)
,
G.S. Abrams
(
- UC, Berkeley and
- LBL, Berkeley and
- SLAC
)
,
M.S. Alam
(
- UC, Berkeley and
- LBL, Berkeley and
- SLAC
)
,
A. Boyarski
(
- UC, Berkeley and
- LBL, Berkeley and
- SLAC
)

et al.

- Phys.Lett.B 69 (1977) 503-507
•
DOI:
- 10.1016/0370-2693(77)90855-3

- Phys.Rev.Lett. 36 526

Observation of a Resonance in e+ e- Annihilation Just Above Charm Threshold

et al.

- Phys.Rev.Lett. 39 (1977) 526,
- Phys.Rev.Lett. 39 (1977) 974 (erratum)
•
DOI:
- 10.1103/PhysRevLett.39.526

Observation of a Narrow anti-Baryon State at 2.26-GeV/c**2

et al.

- Phys.Rev.Lett. 37 (1976) 882
•
DOI:
- 10.1103/PhysRevLett.37.882

Evidence for Delta S = - Delta Q Currents or Charmed Baryon Production by Neutrinos

et al.

- Phys.Rev.Lett. 34 (1975) 1125-1128,
- In *Rosner, J. L. ( Ed.): New Particles*, 79-82. ( Phys. Rev. Lett. 34 ( 1975) 1125-1128 and Brookhaven Nat. Lab. Upton - BNL-19931 (75,REC.APR.) 14p
•
DOI:
- 10.1103/PhysRevLett.34.1125