Observation of new states decaying into Lambda+(c) pi- pi+ - INSPIRE

DataBETA

Observation of new states decaying into Lambda+(c) pi- pi+

CLEO

Collaboration

Oct, 2000

11 pages

Published in:

Phys.Rev.Lett. 86 (2001) 4479-4482

e-Print:

hep-ex/0010080 [hep-ex]

DOI:

10.1103/PhysRevLett.86.4479

PDG:

{{\mathit \Lambda}_{{{c}}}{(2765)}^{+}}-{{\mathit \Lambda}_{{{c}}}^{+}}

MASS DIFFERENCE

Report number:

SLAC-REPRINT-2000-059,
CLNS-00-1698,
CLEO-00-22

Experiments:

CESR-CLEO

View in:

ADS Abstract Service

reference search161 citations

Citations per year

Abstract: (arXiv)

Using 13.7 fb^{-1} of data recorded by the CLEO detector at CESR, we investigate the spectrum of charmed baryons which decay into Lambda_c^+ pi^- pi^+ and are more massive than the Lambda_{c1} baryons. We find evidence for two new states: one is broad and has an invariant mass roughly 480 MeV above that of the Lambda_c^+; the other is narrow with an invariant mass of 596 +- 1 +- 2 MeV above the Lambda_c^+ mass. These results are preliminary.

Note:

11 pages postscript, also available through http://w4.lns.cornell.edu/public/CLNS Report-no: CLNS00-1698, CLEO 00-22

electron positron: colliding beams
electron positron: annihilation
charmed baryon: electroproduction
charmed baryon: hadronic decay
Lambda/c+: excited state
final state: (Lambda/c+ pi+ pi-)
mass difference: spectrum
CLEO
experimental results
Cornell CESR Stor

References(12)

Figures(0)

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