HonexComb meeting #4

53/R-044 (CERN)



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Participants: around 17
• Mateusz:
    • proposal for a new measurements outlined in  arXiv:2002.05503
    • Statistics limited measurement that would profit from combination, could be done from the start
    • Is there anything that can be done with LHCb? => looks like not, because cross-section is higher at mid-rapidity
    • Is there anything that can be done with ALICE? => Maybe, the pt-reach is lower, to be seen
    • Regarding the exclusive photo nuclear background, are there other possible background sources? => Yes, Upsilon is only an example. They should however all be reducible with extra cleaning.
     • How realistic is it to reach 1% sys uncertainty? => The 5% value for Run2 data is more likely, but 1% is the ultimate goal. There are also non-negligible theory uncertainties.
     • What is the main reason not to consider fully hadronic tau decays? => Difficult to trigger, maybe possible for continuous readout in ALICE.
     • Is it possible to measure this in other collision systems (p-Pb)? => Not really.


We might switch to ZOOM for the next meeting (May 26th) due to issues experienced with vidyo for some people.

There are minutes attached to this event. Show them.
    • 1
      Speakers: Alexander Philipp Kalweit (CERN), Giulia Manca (Universita` degli studi di Cagliari and INFN, Cagliari, IT), Iwona Grabowska-Bold (AGH University of Science and Technology (PL)), Raphael Granier De Cassagnac (Centre National de la Recherche Scientifique (FR))
    • 2
      Anomalous electromagnetic moments of τ lepton in γγ → τ+τ− reaction in Pb+Pb collisions at the LHC
      Speaker: Mateusz Dyndal (CERN)