Theoretical / Experimental meeting on the measurement of Mw

20 Oct 2014, 14:00 → 21 Oct 2014, 18:00 Europe/Zurich

Galileo Galilei Institute

Alessandro Vicini (Università degli Studi e INFN Milano (IT)), Doreen Wackeroth (SUNY Buffalo), Fulvio Piccinini (Universita e INFN (IT)), Guido Montagna (University of Pavia e INFN, Pavia (IT)), Luca Perrozzi (Eidgenoessische Tech. Hochschule Zuerich (CH)), Maarten Boonekamp (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))

Indications on how to reach GGI:

http://www.ggi.fi.infn.it/index.php?p=info.inc

Monday, 20 October

1 Introduction

2 Drell-Yan transverse-momentum resummation at NNLL+NNLO

Speaker: Giancarlo Ferrera (University of Milan)

Slides ferrera-ggi-mw.pdf

3 Drell-Yan production at NNLO+PS

Speaker: Emanuele Re (Oxford)

Slides talk_Re.pdf

4 Drell-Yan report (including QCDxEW uncertainties)

Speakers: Alessandro Vicini (Università degli Studi e INFN Milano (IT)), Prof. Doreen Wackeroth (SUNY Buffalo)

Slides report-status-GGI.pdf

16:00 Coffee break

5 EW theory uncertainties on Mw (preliminary results)

Speaker: Homero Martinez (INFN Pavia)

Slides Wmass_HomeroM_20_10_14_v3.pdf

6 PDF uncertainties (discussion)

Speaker: Alessandro Vicini (Università degli Studi e INFN Milano (IT))

Slides PDFptl.pdf

Tuesday, 21 October

7 Tevatron experience. Physics modeling choices

- focus on experience, successes and limitations of the MC tools used (Resbos, PHOTOS, ...) - any other relevant aspects in this context

Speaker: Jan Stark (Centre National de la Recherche Scientifique (FR))

Slides Stark_TevatronExperience.pdf

8 PDF uncertainty estimates

- give the basic setting (starting points for the two experiments) - discuss a basic procedure for systematics - ATLAS PDF ongoing studies - what can be done to lower the systematics (i.e. new NNPDF set, measuremnt with 7,8,13 TeV) - LHC data used to constrain the uncertainties, and how

Speaker: Stefano Camarda (Deutsches Elektronen-Synchrotron (DE))

Slides wmass_20_10_2014.pdf

9 Momentum calibration and recoil: experimental systematics (ATLAS/CMS)

This talk is on the muon momentum calibration, EM calibration and MET. Not on the methods but more on general problematics. - general differences between experiments Tevatron vs LHC (ATLAS vs CMS) - theoretical uncertainties on the Z lineshape-- i.e. FSR effect on lepton calibration - how port the calibrations from the Z to the W

Speaker: Mariarosaria D'Alfonso (CERN)

Slides dalfonso_WM_florence_21october.pdf discussion.pdf

10:30 Coffee break

10 Vector boson transverse momentum distributions

- give the basic setting ( powheg, RESBOS, tune: starting points for the experiments) - is the same between experiments ? - discuss a basic procedure for systematics - LHC data used to constrain the uncertainties, and how

Speaker: Luca Perrozzi (Eidgenoessische Tech. Hochschule Zuerich (CH))

Slides Vector_boson_transverse_momentum_distributions_and_W_mass.pdf

11 Physics modeling : distributions to be published beyond Mw (discussion)

- other theoretical aspects not covered before (polarization, ...) - what we need to have to disentangle any discrepancies (i.e. on the theoretical syst between experiments) - what we need to publish to allow the theorists to help us to study how to lower the theoretical syst uncertainties - usefulness of other distributions (lepton Pt, boson pt)

Speaker: (TBC) Maarten Boonekamp (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))

Slides MwWorkshop_211014.pdf

12:30 Lunch

12 Discussion / next steps