Hammer ver. 1.2.0

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Papucci, Michele

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Oct 27, 2021, 2:55:14 PM10/27/21
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Dear all,

We are pleased to announce that version 1.2.0 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:
- Added B -> pi form factors: GKvD
- Added Lb -> Lc*(2595) ell nu amplitudes, rates
- Added Lb -> Lc*(2595) form factors: LSPR and PCR
- Added Lb -> Lc*(2625) ell nu amplitudes, rates
- Added Lb -> Lc*(2625) form factors: LSPR and PCR
- Added warnings for non existent settings (FF parameters etc)
- Added checking for FF tensor length incompatibility

Changes:
- Bumped to version 1.2, added version-specific doi
- Changed default values Bc -> Jpsi BGL form factors
to latest lattice results/conventions (with backward compatibility)
- Changed default D** -> D(*)pi branching ratios to reflect data- plus isospin-driven estimates

Fixes:
- Issues #68, #69
- Corrected normalization of D** rates
- Corrected ordering of D1 subleading IW functions in BLR(Var)
- Fixed incorrect index label in D2* BLR
- Fixed incorrect WC label in B -> rho/omega ell nu

A new version of the manual is also available on the website.

Other news: We are developing an updated 'BLPR-XP' form factor parameterization for B -> D(*) that will include a systematic, model indepedent treatement of 1/mc^2 corrections. Stay tuned for the paper and subsequent Hammer update!

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


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