Access to particle properties

Inside an ALPHA job, particle properties can be obtained by specifying the particle either by name (symbols starting with the characters ``QP'' or ``KP'') or by the integer code (``QC'' or ``KC''). The particle code has to be set by calling the function ICODE = KPART ('part-name') at least once per job. For more details, see 7.4.3.

KPART ('part-name')

Integer particle code for `part-name'

CQPART (intg-code)

Particle name (12 characters; trailing characters filled with blank spaces)

KPANTI ('part-name', IANTI)

If IANTI = 0: integer code for `part-name' If IANTI unequal to 0: integer code for the antiparticle of `part-name'

KCANTI (intg-code, IANTI)

...

QPMASS ('part-name')

nominal mass

QCMASS (intg-code)

...

QPCHAR ('part-name')

charge

QCCHAR (intg-code)

...

QPLIFE ('part-name')

life time

QCLIFE (intg-code)

...

QPWIDT ('part-name')

width

QCWIDT (intg-code)

...

To check the particle names of ALPHA ``tracks'', see sections 8.1.6 and 8.1.8.

Warning : All above functions which have a particle name as input argument are case-insensitive .