Muon Capture and gP

20 40 60 80 100 120

2.5

5

7.5

10

12.5

15

17.5

20

ChPT

OP (ms-1)

g P

RMC

Cap expected error

Saclay exp theory

OMC Saclay

update from Gorringe & Fearing

We need MuCap !

TRIUMF exp, 2004

precise QCD (ChPT prediction)

no overlap theory & OMC & RMC

Berkeley colleagues working hard

MuCAP reached the summit of Mt. Shasta, California (altitude 4317 m)

Russian colleagues working hard