All the main summer conferences have come and gone but ATLAS and CMS are already sitting on about 2.5/fb of data with most published results using only 1/fb – 1.6/fb, so when will we next get an update?
The latest Higgs search results used about 1.6/fb in most important channels with some exceptions. ATLAS used 2.3/fb for the ZZ → 4l channel but only 1.08/fb in the important diphoton channel. CMS updated only the cut-based analysis for the dominant WW → lνlν channel with the best MVA based analysis limited to 1.09/fb. The potential therefore clearly exists to significantly improve the sensitivity for Higgs searches, so when will they do it?
If you follow the viXra log science calendar you will already have noticed that two previously scheduled LHC seminars now have titles. In one weeks time on 13th September CMS will present “Higgs Searches with CMS“. Then on 20th September ATLAS brings us “Diboson Higgs Searches at ATLAS“. I have no idea how much new data if any will be revealed but with so many presentations already delivered at conferences and workshops I don’t think there would be much point to these if they did not add something new. Then again, I have been caught out before.
One more Higgs workshop has popped up entitled “Higgs Days at Santander 2011” on 19th-23rd September with yet more discussion about combinations and implications. All the important people will be there. Remember that the Higgs combination promised for Lepton-Photon 2011 never materialized except in the form of a leaked early version that closely matched my unofficial combinations. Will an official version finally be allowed out or will theorists have to continue to rely on their own sketches? Keep watching, the next installment in this gripping story is coming up.
Update 15-Sep-2011: A special seminar for tomorrow entitled just “Seminar DG” was scheduled at short notice last week and cancelled at even shorter notice today. Was this to be a special announcement by Rolf-Dieter Heuer the CERN director general? An anonymous comment on Resonaances suggests it was about some 6.1 sigma anomaly: A rumour or a prank? If anyone knows what it was really about please do tell.
Update 20-Sep-2011: Neither of the Higgs seminars discussed any new data beyond that shown at Lepton-Photon 2011. The Santander workshop is proceeding with no slides being posted online so far. We are waiting for the OPERA neutrino seminar of Friday where the growing rumour says they will report the discovery of tachyonic neutrinos.