--------------------------------
Weekly JLC Physics Group Meeting
--------------------------------
Place: 3F Bldg 3, KEK
Time: 10:30, 97/07/18
[0] Agenda
0.1) Notifications
0.2) Grace
[1] CCJLC Cluster (Miyamoto)
CCJLC0 will be upgradeded to HP-UX 10.20, which will take
2 days. The schedule will be announced later.
On July 15, the FORTRAN compiler on CCJLC* changed. Unfortunately
the change invalidated the use of long variable or subroutine names,
and causes file deletion at the beginning of a job, unless "OLD" is
explicitly specified.
Consult Miyamoto for detail.
[2] Present Status of GRACE: Part 2 (Kurihara)
This is the 2nd of the GRACE series.
Kurihara explained the GR4F package that is a specialized
package including an event generator, using GRACE.
This inculdes full tree amplitudes, including non-resonant ones,
with QEDPS for multiple photon emissions.
Kurihara emphasized its advantage:
a) weight 1 event generation
b) finite fermion masses allowing consistent event generation
everywhere in the kinematically allowed region.
c) full tree amplitudes justifying the event generations in the
off-resonance region.
d) QEDPS that enables multiple photon emissions with finite Pt.
This approximation is valid up to 1/2 the kinimatical limit.
It's worth noting that KORALW now adopts the GRACE-generated
helicity amplitudes.
fujiik@jlcux1.kek.jp