Hammer ver. 1.1.0

[Papucci, Michele]

Dear all,

we are pleased to announce that version 1.1.0 of Hammer is now available on the Hammer website (https://hammer.physics.lbl.gov) and on the GitLab repo.

Here is a summary of the code changes (please see the manual or readme for more details):

Additions:
- Support for constant rates (no FF/WC indices)
- Improved NaN checking, new "CheckForNaNs" option
- Added B_c -> J/psi(->ell ell) ell nu edge amplitude, rate
- Added B_c -> J/psi ell nu amplitude, rate
- Added B_c -> J/psi form factors: EFG, BGL, BGLVar, Kiselev
- Added D_1 -> D*(-> Dpi, Dgamma) pi, D_2* -> D*(-> Dpi, -> Dgamma) pi edge amplitudes, rates
- Added D_1 -> D* pi, D_2 -> D* pi, D_2* -> D pi amplitudes, rates
- Added D_1 -> D* pi, D_2* -> D* pi, D_2* -> D pi, partial wave form factor
- Added B -> rho (-> pipi) ell nu, B -> omega ( -> 3pi) ell nu amplitudes, rates
- Added B -> rho, omega form factors: BSZ, ISGW2, BSZVar
- Added B -> pi ell nu amplitudes, rates
- Added B -> pi form factors: BCL, ISGW2, BCLVar
- Added possibility to relabel FF error names
- Added enum in processEvent signature to allow an alternative way to compute only weights,
only histograms or everything
- Added support for strange D** strong and EM decays

Changes:
- Bumped to version 1.1, added version-specific doi
- Changed default values for B->D* BGL(Var) FFs
- Included support for ad-hoc smear performed by EvtGen B -> D1, B -> D1* ISGW2 form factors
- Merge policy for rates checks for collisions of rate tensors rather than FF scheme names
- C++ dialect determination changed.

Fixes:
- Issues #64, #65, #67
- Bug in reloading files with FF duplicates
- Parsing bug for options containing complex numbers
- Issue with merging samples with rates without form factors

A new version of the manual is also available on the website.
In particular we draw your attention to a short discussion on the interplay between how EvtGen generates lineshapes for broad resonances and how Hammer performs the reweighting,
relevant e.g. when dealing with the D^** states.

Also please note that for the B_c -> J/psi BGL/BGLVar form factors the constants do not yet reflect the most recent lattice results.
We will update them shortly, as soon as the updated BGL fits will become available from the authors.

Please contact us for your comments/questions at hammer-...@lbl.gov.

As some users may not be on the mailing list, please circulate this to others that might be interested.

Happy reweighting!

The Hammer authors