1 Summary of last 6 months Data taking at 13 TeV and a very successful Heavy Ion run Commissioning of our Phase I upgrade trigger intense activities on the muon side and online SW Repair campaigns water leaks and ID: 795272
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Slide1
CMS report to
CERN-Korea Committee
1
Slide2Summary of last 6 months
Data taking at 13 TeV and a very successful Heavy Ion run
Commissioning of our Phase I upgrade trigger: intense activities on the muon side and online SWRepair campaigns: water leaks and
Cryo
Dewar Valve
Cold Box cleaned and new Helium feed systemProgress in execution of Phase I upgrade ( Pixel and HCAL ) R&D effort on Phase II upgrades
2
Slide3New Institutes
In the last 18 months several institutes have joined CMS 11 full and 2 associate members
Katholieke Universiteit, Leuven, Belgium ( associate)Beihang
University,
Beijing,China
(full)Tsinghua University, Beijing China(Associate)Universidad San Francisco de
Quito, Quito, Ecuador (full)
Escuela
Politecnica Nacional, Quito, Ecuador (full)Eötvös Loránd University, Budapest, Hungary (full)Sejong University, Seoul, Korea (full)Hanyang University, Seoul, Korea (full)Novosibirsk State University, Russia (full)Moscow Engineering Physics Institute (MEPhI), Russia (full)Moscow Institute of Physics and Technology (MIPT), Russia (full)IISER, Pune, India (full)Indian Institute of Technology, Madras, India (full)Three more institutes in the ‘approval’ pipeline
3
Slide4Publication status
4
4
81
physics papers submitted
+
36
Ready for CWR or later88 in review process
34
analyses related to 2015
data11 Run2 papers on track:4 published/accepted2 in submitted state4 CWR-ended1 Ready for LE
All info from CADI and from our publication page:http://cern.ch/cms-results/public-results/publications/
Slide513TeV result: re-discovering Higgs Boson
5
Expectations: 2.7
𝜎
at 125
GeV
mass; 1.7
𝜎
observed.Small deficit driven by the ‘untagged’ category (gg->H): Consistent with SM expectations: 𝜇 = 0.77 +0.47 - 0.46
Slide6High Mass
diphoton search: update
EXO-16-018
6
Slide7High Mass
diphoton search: update
7
EXO-16-018
Slide8..exploration of SM @ 13 TeV
8
Slide942 published/submitted papers
Average citation: 98
4 “Famous” paper in INSPIRE
Recent highlights in heavy ions at CMS
D
0
suppression in
PbPb
“Elliptic flow” in pp
Melting of
Υ
(
nS) in PbPb Charm-jets in pPb9
Slide1002 May:
1st
physics
Start closing: week of 29 Feb
26
Apr
“
cryo
-ready”27 Apr ±1 dayB=3.8T 24 MarCMS closedΔP tests
23 Mar
“vacuum ready”
18 Mar: start
bp pump-down22 MarUXC patrol 07 Apr startCB cooldown
done!done!done!
done!
done!
09 Apr start
Mag
cooldown
done!
done!
22
Apr:
1
st
stable beams
S
eeing the end of the YETS
10
Slide11Cryo system and Magnet
11
The setup for liquefying Helium for our magnet which was polluted last year by Breox Compressor oil has been fully overhauled: we have new Oil Separators system, New Oil
Coalescers
, completely new pipe feeding the high pressure, warm, Helium to the cold box and cleaned the Cold box with special solvent.
From the distillation of the solvent we recovered ~400 g of oil
…enormous if you think that 200mg are enough to clog the CB filters.
The system has been restarted and reconnected to the magnet and we are now in the final steps to proceed to ramp the field once enough Liquid He will be accumulated in the storage dewar to ensure safety in case of a quench.Expect the magnet to be at full field on wednesday
Slide12LHC has restarted
12
CMS was ready to take Splash events on Good Friday (March 25)
And later we used ‘quiet’ collisions to verify beam spot position (Si-tracker powered on)
From BRIL: all three
lumi
monitors (HF, PLT, BCM1F) were functioning properly
…albeit not fully calibrated
Slide13Readiness
L1 trigger: a priority area during YETS and commissioning runs; seeing the tail of the commissioningReadiness of CMS progressively established: successful long cosmic runs with all detectors included during nights.
13
Slide14Stable beams
14
Slide15Rich physics output from 2015 data so far:
>65 public results from 2015 data (most released for
Moriond
series)
Many
more being released soon, targeting Blois, Initial Stages @ 2016 (HIN conference), …
Current plans:
Push
publication of results from 2015 data before data taking resumes fully
MC
production for ICHEP
defined
:First 3B events launched, second batch of 2B being finalizedTarget: first round of 2016 results with up to 5-10 fb-1Targeting LHCP for first performance studies
Stay on the lookout for any and all signs of new physics until ICHEPPhysics
15
Slide16The 750 GeV
‘thing’The plan is to have the standard analysis frozen and in ‘top-up mode’ while in parallel we run cross check analysis
Special attention will also be paid to the other decay channels.
16
From
Strumia
,
Moriond
EW
Slide17Phase I Upgrades
Executive summaryTrigger Upgrade commissioned to be operational for 2016 run
Pixel upgrade: production in full swingHCAL upgrade: backend electronics (m
TCA
) installed and commissioned
HF frontend electronics: all components in hand installation for end of the yearHE replacement of HPD with SiPM+new frontend: anticipate to EYETS 2016-17 to mitigate scintillator radiation damage. Procurement ongoing and production of component being launched
HB HPD replacement with
SiPM
to proceed in LS2 as foreseen17
Slide18CMS Phase II Upgrades
18
New Tracker
Rad. Tolerant -
light
High Definition measurement
40 MHz selective readout for hardware
t
riggerExtended Pixel coverage to η ≃ 3.8Trigger/HLT/DAQTrack information in hardware event selection750 kHz hardware event selection 7.5 kHz events registered Muon
systems
New DT & CSC electronics
New chambers
1.6 < η < 2.4Muon tagging 2.4 < η < 3New Endcap Calorimeters Rad. Tolerant5D measurement
Barrel EM calorimeter New electronicsLow operating temperature (8∘)
Beam radiation and luminosity
Common systems and infrastructure
Technical proposal CERN-LHCC-2015-010
https://cds.cern.ch/record/2020886
Scope Document CERN-LHCC-2015-019
https://cds.cern.ch/record/2055167/files/LHCC-G-165.pdf
Phase II upgrades calendar
19
2017 Technical Design Report Projects are subject to annual Comprehensive Reviews (CR): independent
review
panels
including reviewers external to CMS .
First CR cycle: Jun 2016.
CMS Phase II upgrade schedule
Slide20Muon
R&D progress
20
Longevity:
a
ll systems in test at GIF++
iRPC3/4: two technologies in test with various configurations (small/large glass and bakelite, double/multi-gap) - showing adequate few kHz rates capability and timing precision ≃ 60 ps
GEM1:
pre-production started
GEM2: engineering design with splice of triple-GEM foils and 10/20∘ sizes - prototypes under construction - R&D on Micro- Resistive-Well design variant
active foil area
with GEM holes
GEM foil
base material
~
46
cm
61 cm
splices
(dead area)
GRPC
DT
CSC
GEM
Micro-Resistive-Well
Slide21Korea and CMS
The Korea CMS team has grown significantly since the beginning of CMS: is now composed
of 32 academics from 9 universities: the latest additon
being
Hanyang
and Sejong University.The impact in the production of Physics driven by Korean physicists and their students has increased accordingly
The role that Korea has played in the recent Phase I upgrade for the RPC chamber has been fundamental: this would
nothave
happened without KoreaKorea contributes coherently to the life of the experiment:for 2016 the M&O-A budget is 327 kCHF plus 36 kCHF contribution to the muon M&O-B The Korean participation in the Phase I Upgrade amounts to 643 kCHF which consist of 545 kCHF contribution to the Muon RPC Upgrade and 98 kCHF participation in the Common FundAll dues for Upgrade Phase 1 and 2015 M&O paid: thanks !Other statutory, non monetary, contributions ( Experimental Physics Responsibilities) have been provided by the Korean community in 2015 and similar contribution is expected in 2016Korea is already engaged in our Phase II upgrade: the GEM project GE 1/1 being the first approved detector upgradeFrom the investment point of view we expect a fair-share ( based on the Korean Population of CMS) core cost contribution around 6MCHF: this investment in our future is over the period from now till 2025. 21
Slide22In Summary
CMS has achieved all the goals set for the YETS: repair campaign, Cold Box cleaned and Phase I upgraded trigger commissionedWe are ready for the 2016 data taking campaign
The hints of a possible new state of matter have excited the HEP community: in the experiments our trust is in data …and we will get a lot more data in 2016 which should tell us if we are about to open a new page in HEP historyThanks for your continued support !
22
Slide23Summary
23
Thank you !
for your continued support