Releaes NOTE 43 --- grc4f.2.2 (2001.07.25) ---

• minor bug fix for QEDPS T-chanel.

Releaes NOTE 42 --- grc4f.2.2 (2001.06.29) ---

Releaes NOTE 42a--- grc4f.2.2 (2001.07.11) ---

Bug fix for displaying Kappa_gamma/Z value.

Releaes NOTE 41 --- grc4f.2.2 (2001.01.25) ---

• QEDPS T-chanel is supported.
• The random number for QEDPS is independently generated from BASES/SPRING.

Releaes NOTE 40 --- grc4f.2.1 (2000.06.28) ---

1. CHANGED Files from grc4f.2.1(39)

2. What was changed? This kinematics is used for the following processes:

• "muon anti-muon muon anti-muon"
• "tau anti-tau tau anti-tau "
• "u u-bar u u-bar "
• "d d-bar d d-bar "
• "c c-bar c c-bar "
• "s s-bar s s-bar "
• "b b-bar b b-bar "

Convergency in integration step is improved.

Releaes NOTE 39 --- grc4f.2.1 (2000.03.03) ---

2. CHANGED Files from grc4f.2.1(38)

• pro/grc4fm.f
• pro/prcdbi.f

2. What was changed?

------------------------------------------------------------
• 20000303: pro/grc4fm.f (change version name)
• 20000303: pro/prcdbi.f (graph selection)

  In "electron,positron,nu-e,nu-e-bar", the set of t-chanel has been corrected. (set=8)

Releaes NOTE 38 --- grc4f.2.1 (1998.11.10) ---

1. CHANGED Files from grc4f.2.1(37)

• amp4f/kinem_7.f
• pro/grc4fm.f
• pro/grcevt.f
• pro/prcdbi.f
• pro/setmas.f

2. What was changed?

------------------------------------------------------------
• 19981110: pro/grc4fm.f (change version name)
• 19981022: (bug fixed) amp4f/kinem_7.f

  The following 4 processes gave the same result of tree calculation, i.e, without Coulomb-correction, even if one specified Fadin(Coulomb-correction) option.

  • 4 nu-mu,anti-muon,muon,nu-mu-bar
  • 5 nu-tau,anti-tau,tau,nu-tau-bar
  • 61 u,d-bar,d,u-bar
  • 62 c,s-bar,s,c-bar

• 19980907: (bug fixed) pro/setmas.f

  If one specified all helicity state(0), there was NO problem. The bug was: one specified right-handed (-1), grc4f will stop at the beginning.

• 19980225: (add/mod) pro/prcdbi.f (graph selection)

  The following graph selections had been available.

  call grcpar("set",isel,1,ier)

  • isel = 2 .... ZZ
  • isel =12 .... ZZ | Zg | gg
  • isel = 3 .... Wln without CC03 (isel=1)
  • isel = 4 .... Zll without (ZZ|Zg|gg)(isel=12)
  • isel = 5 .... Znn | gnn without (ZZ|Zg|gg)(isel=12)
  • isel =13 .... Wln without CC03 (isel=1) .or. CC03 ( isel=1 + isel=3)
  • isel =14 .... isel=4 + isel:12
  • isel =15 .... isel=5 + isel:12

• 19980222 (bug fixed)grcevt.f

  When one tried to execute multi-process SPRING, 2nd SPRING doesn't execute.