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First observation of a family of double-charm baryons

Conference ·
OSTI ID:801550
The SELEX experiment (E781) at Fermilab has candidates for high mass states decaying to {Lambda}{sub c}{sup +}K{sup -}{pi}{sup +} and {Lambda}{sub c}{sup +}K{sup -} pi{sup +}{pi}{sup +}, Cabibbo-allowed decay modes of doubly-charmed baryons {Xi}{sub cc}{sup +} and {Xi}{sub cc}{sup ++}. The masses are consistent with theoretical considerations, but the spectroscopy is surprising. Limited lifetime information suggests that {tau}{sub {Xi}{sub cc}{sup ++}} {approx} {tau}{sub Xi}{sub cc}{sup +}.
Research Organization:
Fermi National Accelerator Lab., Batavia, IL (US)
Sponsoring Organization:
USDOE Office of Energy Research (ER) (US)
DOE Contract Number:
AC02-76CH03000
OSTI ID:
801550
Report Number(s):
FERMILAB-Conf-02/236-E
Country of Publication:
United States
Language:
English

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