The Reaction p-bar p ---> Lambda-bar(c)- Lambda(c)+ close to threshold - INSPIRE

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The Reaction p-bar p ---> Lambda-bar(c)- Lambda(c)+ close to threshold

J. Haidenbauer
(
- Julich, Forschungszentrum and
- JCHP, Julich
)
,
G. Krein
(
- Sao Paulo, IFT
)

Dec, 2009

12 pages

Published in:

Phys.Lett.B 687 (2010) 314-319

e-Print:

0912.2663 [hep-ph]

DOI:

10.1016/j.physletb.2010.03.065

Report number:

FZJ-IKP-TH-2009-38

View in:

ADS Abstract Service

reference search45 citations

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Abstract: (Elsevier)

Predictions for the charm-production reaction p¯p→Λ¯c−Λc+ for energies near the threshold are presented. The calculations are performed in a meson-exchange framework in close analogy to our earlier study on p¯p→Λ¯Λ by connecting the two processes via SU(4) symmetry. The obtained Λ¯c−Λc+ production cross sections are in the order of 1 to 7 μb, i.e. a factor of around 10–70 smaller than the corresponding cross sections for Λ¯Λ . However, they are 100 to 1000 times larger than predictions of other model calculations in the literature.

13.85.Fb
13.75.Cs
25.43.+t
Charmed-baryon production
Proton-antiproton annihilation
Meson-exchange model
Quark model
Proton–antiproton annihilation
anti-p p: elastic scattering
anti-p p: inclusive reaction

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