dt-em2 13/12/2011 12/13/11dt-em2. meeting with ph (retreat) dt is foreseen to stabilize at just...

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DT-EM2 13/12/2011 12/13/11 DT-EM2

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Page 1: DT-EM2 13/12/2011 12/13/11DT-EM2. Meeting with PH (retreat) DT is foreseen to stabilize at just above 70 staff. 12/13/11DT-EM2

DT-EM2

DT-EM213/12/2011

12/13/11

Page 2: DT-EM2 13/12/2011 12/13/11DT-EM2. Meeting with PH (retreat) DT is foreseen to stabilize at just above 70 staff. 12/13/11DT-EM2

DT-EM2

Meeting with PH (retreat)

DT is foreseen to stabilize at just above 70 staff.

12/13/11

Page 3: DT-EM2 13/12/2011 12/13/11DT-EM2. Meeting with PH (retreat) DT is foreseen to stabilize at just above 70 staff. 12/13/11DT-EM2

DT-EM2

New DT building!

12/13/11

Page 4: DT-EM2 13/12/2011 12/13/11DT-EM2. Meeting with PH (retreat) DT is foreseen to stabilize at just above 70 staff. 12/13/11DT-EM2

DT-EM2

New member (?)

Mechanical Technician /Technicien(ne) en mécanique

Technician in the field of Mechanics in the Physics Department (PH), Detector Technology Group (DT) Technicien(ne) en mécanique dans le Département de physique (PH), groupe Technologie des détecteurs (DT)

Programme:  Staff  Staff Category:  Technicians  Number of posts:  1  Posted Date: 11/11/2011  Closing Date: 05/01/2012 Reference: PH-DT-2011-239-LD

12/13/11

Page 5: DT-EM2 13/12/2011 12/13/11DT-EM2. Meeting with PH (retreat) DT is foreseen to stabilize at just above 70 staff. 12/13/11DT-EM2

DT-EM2

Higgs???!

12/13/11

Page 6: DT-EM2 13/12/2011 12/13/11DT-EM2. Meeting with PH (retreat) DT is foreseen to stabilize at just above 70 staff. 12/13/11DT-EM2

Higgs Detection: H -> ggRare decay channel: BR~10-

3

Look for mass peak Demand for excellent ECAL

performance

12/13/11DT-EM2

events

Mass

background

Higgs signal

The combined energies of the signal photons would cluster at the mass of the Higgs boson. In contrast, background events include photon pairs with a variety of energies.

CMS detector

Page 7: DT-EM2 13/12/2011 12/13/11DT-EM2. Meeting with PH (retreat) DT is foreseen to stabilize at just above 70 staff. 12/13/11DT-EM2

DT-EM2

The Higgs search as of 18/11/2011

12/13/11To be continued……..

Page 8: DT-EM2 13/12/2011 12/13/11DT-EM2. Meeting with PH (retreat) DT is foreseen to stabilize at just above 70 staff. 12/13/11DT-EM2

DT-EM2 12/13/11

Neutrinos faster than light ??

OPERA (Oscillation Project with Emulsion-tRacking Apparatus)

Page 9: DT-EM2 13/12/2011 12/13/11DT-EM2. Meeting with PH (retreat) DT is foreseen to stabilize at just above 70 staff. 12/13/11DT-EM2

DT-EM2 12/13/11

Present status"One of the eventual systematic errors is now out of the way, but the search is not over. They are more checks of systematics currently under discussion, one of them could be a synchronisation of the time reference at CERN and Gran Sasso independently from the GPS, using possibly a fiber" said Jacques Martino, Director of National Institute of Nuclear and Particle Physics of French CNRS

BUT, neutrino oscillations indicates a non-zero masss!!!

Solution: New independent experiment!

~25ppm !

Page 10: DT-EM2 13/12/2011 12/13/11DT-EM2. Meeting with PH (retreat) DT is foreseen to stabilize at just above 70 staff. 12/13/11DT-EM2

DT-EM2

AOB

12/13/11