Related Experiment Videos
Charge symmetry breaking in np-->dpi(0)
A K Opper1, E Korkmaz, D A Hutcheon
1Ohio University, Athens, Ohio 45701, USA. opper@ohiou.edu
Physical Review Letters
|December 20, 2003
Abstract:
The forward-backward asymmetry in np-->dpi(0), which must be zero in the center-of-mass system if charge symmetry is respected, has been measured to be [17.2+/-8.0(stat)+/-5.5(syst)]x10(-4), at an incident neutron energy of 279.5 MeV. This observable is compared to recent chiral effective field theory calculations, with implications regarding the du quark mass difference.