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CMS report to  CERN-Korea Committee CMS report to  CERN-Korea Committee

CMS report to CERN-Korea Committee - PowerPoint Presentation

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CMS report to CERN-Korea Committee - PPT Presentation

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

full cms upgrade phase cms full phase upgrade 2015 physics data 2016 amp university korea cern kchf results production

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Presentation Transcript

Slide1

CMS report to

CERN-Korea Committee

1

Slide2

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 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

Slide3

New 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

Slide4

Publication 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/

Slide5

13TeV 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

Slide6

High Mass

diphoton search: update

EXO-16-018

6

Slide7

High Mass

diphoton search: update

7

EXO-16-018

Slide8

..exploration of SM @ 13 TeV

8

Slide9

42 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

Slide10

02 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

Slide11

Cryo 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

Slide12

LHC 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

Slide13

Readiness

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

Slide14

Stable beams

14

Slide15

Rich 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

Slide16

The 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

Slide17

Phase 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

Slide18

CMS 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

Slide19

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

Slide20

Muon

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

Slide21

Korea 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

Slide22

In 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

Slide23

Summary

23

Thank you !

for your continued support