lp:~maddevelopers/mg5amcnlo/new_clustering

Created by Rikkert Frederix on 2018-02-05 and last modified on 2021-04-06
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Owner:
MadDevelopers
Project:
MadGraph5_aMC@NLO
Status:
Development

Recent revisions

354. By Ioannis Tsinikos on 2021-04-06

Changes:

1. add_write_info.f: all particles have now pt_clust equal to scalup. The not-to-be-matched quarks have the pt_clust reduced by 1 MeV in order to be able to flag them in PYTHIA8.

2. JetMatching.h: Different type 2 identification is added for the FxFx according to the scales input from add_write_info.f.

Comments:
It is checked that this version gives smooth DJR's and pT(j)'s for FxFx merging in both the ttWj and the ttj processes.

353. By Ioannis Tsinikos on 2021-03-17

4. Added the file JetMatching.h, from 'PYTHIA8path/inlude/Pythia8Plugins/' with the necessary modifications in PYTHIA8

352. By Ioannis Tsinikos on 2021-03-17

Changes:
1. cluster.f: (a) fixed index bug in subroutine matching_particles, (b) changed the factor for the cluster_scale for the itypes 4 and 5.

2. add_write_info.f: set the pt_clust equal to scalup for the particles that require mathcing.

3. MCatNLO_MadFKS_PYTHIA8.Script: added the line to recognise and read the string with the Weak Jets

4. Added the file JetMatching.h, from 'PYTHIA8path/inlude/Pythia8Plugins/' with the necessary modifications in PYTHIA8

Comments:
This version gives smooth DJR's and pT(j)'s for FxFx merging in ttWj,ttj and Wj processes

351. By Rikkert Frederix on 2020-11-26

Update the shower starting scale based on the FxFx cluster scales

350. By Rikkert Frederix on 2020-11-17

(1) Fixed an issue with updating the cluster_type. (2) The correct
startQCDvertex now must include a need_matching=1 particle.

349. By Rikkert Frederix on 2020-11-17

generalised the cut on the minimum cluster scale in cuts.f so that it
works for arbitrary processes.

348. By Ioannis Tsinikos on 2020-11-05

A. cluster.f
1. Comment out the itype dependent cluster scale
2. Add and comment out the geometrical average cluster scale
3. Add the default cluster scale for checks

347. By Rikkert Frederix on 2020-06-18

Updated the shower scales for the q->qV type splittings

346. By Rikkert Frederix on 2020-06-17

improvement in determining the clustering scales. Needs some careful
review.

345. By Ioannis Tsinikos on 2020-05-21

A. cuts.f
1. Introduce a small pT(j) > 1 GeV for numerical stability in FxFx
2. Fix a bug in selecting the minimum FxFx_ren_scales(i)
3. Set min(FxFx_ren_scales(i)) > ptj

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