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PENTRC: restore pitch-consistent clar normalizations (omega_b /sqrt(bo), omega_D /bo) #289

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Merged
logan-nc merged 1 commit into from
Aug 2, 2026
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PENTRC: restore pitch-consistent clar normalizations (omega_b /sqrt(bo), omega_D /bo) #289

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12 changes: 9 additions & 3 deletions pentrc/torque.F90
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Original file line number Diff line number Diff line change
Expand Up @@ -443,10 +443,16 @@ subroutine tpsi(tpsi_var,psi,n,l,zi,mi,wdfac,divxfac,electron, &
kappa = sqrt((1 - lmda*(1- epsr))/(2*epsr*lmda))
endif
lnq = 1.0*l
! cylindrical bounce and precessions
wbbar = pi*SQRT(2*epsr*lmda*bo)/(4*q*ro*ellipk(kappa**2))
! cylindrical bounce and precessions. These forms come from
! PENT, where the pitch variable was dimensional (1/Tesla,
! vpar = 1 - lmda*b). Here lmda is the dimensionless
! Lambda = lmda_pent*bo, so the PENT expressions map to
! sqrt(2*epsr*lmda) (no bo) and a bo in the wdbar
! denominator; keeping the PENT text verbatim inflated
! omega_b by sqrt(bo) and omega_D by bo.
wbbar = pi*SQRT(2*epsr*lmda)/(4*q*ro*ellipk(kappa**2))
wdbar = (2*q*lmda*(ellipe(kappa**2)/ellipk(kappa**2)-0.5)&
/(ro**2*epsr))*wdfac
/(bo*ro**2*epsr))*wdfac
bhat = SQRT(2*kin_f(s+2)/mass)
dhat = (kin_f(s+2)/chrg)
! perturbed action Eq. (12) [Park, Phys. Rev. Lett. 2009] divided by 2pi for DCON phi normalization
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