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An I = 1 enhancement at a mass of 1550 MeV in the (Λπ) and (Σπ)-systems

Abstract:
Evidence is presented for an I = 1 enhancement observed in the reactions K-p→Λ(Σ)K01K ±π∓ at 4.2 GeV c inciden momentum. The mass and width of the proposed new Y* are, respectively, (1553 ± 7) MeV) and (80 ± 30) MeV. A decay branching ratio Σπ (Σπ + Λπ) = (35 ± 12)% is also obtained. © 1978.

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Journal:
Physics Letters B
Volume:
78
Issue:
1
Pages:
154-157
Publication date:
1978-09-11
DOI:
ISSN:
0370-2693
URN:
uuid:1545e09e-004f-453c-b44a-00f76fb81d7b
Source identifiers:
345248
Local pid:
pubs:345248
Language:
English

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