Issue |
EPJ Web of Conferences
Volume 66, 2014
INPC 2013 – International Nuclear Physics Conference
|
|
---|---|---|
Article Number | 09003 | |
Number of page(s) | 8 | |
Section | Hadrons in Nuclei | |
DOI | https://doi.org/10.1051/epjconf/20146609003 | |
Published online | 20 March 2014 |
https://doi.org/10.1051/epjconf/20146609003
Neutron-rich Λ-Hypernuclei study with the FINUDA experiment
1 INFN Sezione di Torino, via P. Giuria 1, Torino, Italy
2 Dipartimento di Fisica, Università di Torino, via P. Giuria 1, Torino, Italy
a e-mail: botta@to.infn.it
Published online: 20 March 2014
The FINUDA experiment at DAΦNE, Frascati, has found evidence for the neutron-rich hypernucleus studying (π+, π−) pairs in coincidence from the
production reaction followed by
weak decay. The production rate of
undergoing this two-body π− decay has been found to be
. Its binding energy has been evaluated to be
MeV with respect to
, jointly from production and decay. A systematic difference of (0.98 ± 0.74) MeV between BΛ values derived separately from decay and from production has been tentatively assigned to the
excitation. A similar investigation has been carried out for the neutron-rich hypernucleus
studying the
reaction in coincidence with the
weak decay; an upper limit for the production rate of
undergoing the two-body π− decay has been found to be
(90% C.L.).
© Owned by the authors, published by EDP Sciences, 2013
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