title: Charge symmetry breaking in np-->dpi(0).
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.
authors.affiliation: Ohio University, Athens, Ohio 45701, USA. opper@ohiou.edu
authors.forename: A K
authors.initials: AK
authors.lastname: Opper
authors.forename: E
authors.initials: E
authors.lastname: Korkmaz
authors.forename: D A
authors.initials: DA
authors.lastname: Hutcheon
authors.forename: R
authors.initials: R
authors.lastname: Abegg
authors.forename: C A
authors.initials: CA
authors.lastname: Davis
authors.forename: R W
authors.initials: RW
authors.lastname: Finlay
authors.forename: P W
authors.initials: PW
authors.lastname: Green
authors.forename: L G
authors.initials: LG
authors.lastname: Greeniaus
authors.forename: D V
authors.initials: DV
authors.lastname: Jordan
authors.forename: J A
authors.initials: JA
authors.lastname: Niskanen
authors.forename: G V
authors.initials: GV
authors.lastname: O'Rielly
authors.forename: T A
authors.initials: TA
authors.lastname: Porcelli
authors.forename: S D
authors.initials: SD
authors.lastname: Reitzner
authors.forename: P L
authors.initials: PL
authors.lastname: Walden
authors.forename: S
authors.initials: S
authors.lastname: Yen