AFP STATUS REPORT – WHERE ARE WE ????Steve Watts

• We have spent the last year being reviewed.• Decision and letter from ATLAS EB November 2009. Proceed to Technical Proposal by end of 2010. Earliest for TP-> TDR decision is end 2010. Then LHCC…..

HIGHLIGHTS OF YEAR• Physics case. A lot of work by all and this is now much improved.

BSM Higgs QN + Anomalous Couplings + QCD Studies

Importance of trigger at 220 for Higgs to bb. BSM possible.Importance of L1 ECAL Upgrade for topological selection.

• Federico saved the day. Collimators at 220. This will be on-going asthe LHC collimator system design is finished and implemented.

• Change to tracker design. Use FE-I4 as in IBL. Means a lot ofdevelopment work. But many advantages ( e.g. rad. hardness) AND…..common 220/420 design• Detailed plan to solve MCP/PMT lifetime issue.• Lot of progress on transferring 3D sensor technology to industry. CMS design too!

2000 Durham IPPP Khoze, Martin, Ryskin (KMR): Exclusive Higgs prediction Eur.Phys.J.C14:525-534,2000, hep-ph/0002072

2003-2004 Manchester Christmas meetings – supported by IPPP

To develop interest in joint CMS/ATLAS work. FP420 R&D collaboration forms. Meeting continues – next is 12-14 December 2009.

2005 FP420 LOI presented to LHCC CERN-LHCC-2005-0254

“LHCC acknowledges the scientific merit of the FP420 physics programme and the interest in exploring its feasibility”

2006-2007 Significant STFC R&D funding in UK for FP420. Funding in U.S. and other countries, major technical progress. RP220 formed2008 RP220 and AFP420 merge to form AFP, R&D continues, Cryostat design finalized with CERN, LOI to ATLAS submitted2009 “AFP year in review”, FP420 R&D document published “The FP420 R&D Project: Higgs and New Physics with Forward Protons at the LHC,” FP420 Collaboration, arXiv:0806.0302v2, published in J. Inst.: 2009_JINST_4_T10001.

Overview of AFP Physics - Plenty of diffractive events (SD and DPE) Physics programme in QCD and photoproduction.

Two exciting new physics production processes

Central Exclusive Production (CEP) Khoze, Martin and Ryskin.

and using the LHC as a photon-photon collider – photon-photon physics

Quantum number selection rule.High precision mass measurementindependent of decay channel

See few events => JPC = 0++

Production very large. Well knowncross sections for SM and BSMprocesses: SUSY production andanomalous couplings

cf. High energy photon collisions at the LHC – CERN April 2008

CDF arXiv 0902.1271

AFP and ATLAS

Two stations at 220 and 420m to detect leading protons, integrated into the LHC

High precision massspectrometer using the LHC 70 – 1400 GeV/c2

420 m28 7x8 mm2 sensorsper tracking station4 stations required.or 14 FE-I4 sensors220m14 FE-I4 sensorsor 60 FE-I3 sensors

THE KEY PLOT FOR AFP

NEED STATIONS AT 220 and 420 for the physics programme.

• Array of rad-hard active edge 3D silicon detectors with resolution ~10 m/plane and 1rad angular resolution.

3D technology development which is also ATLAS R&D Project

• Timing detectors with ~10 ps resolution for overlap background rejection. Developed by FP420 and R&D on-going.

• New Connection Cryostat at 420m – conceptual design developed by FP420 R&D with CERN.

• “Hamburg Beam Pipe” - Similar idea to Roman Pots but better suited to this experiment.

WHAT DETECTOR SYSTEM DO YOU NEED TO DO THIS PHYSICS ???

Edge response with tracks < 4m

beam

• New FE-I4– Pixel size = 250 x 50 µm2

– Pixels = 80 x 336– Technology = 0.13µm– Power = 0.5 W/cm2

• FE-I4 Design Status– Contribution from 5 laboratories.– Main blocks MPW submitted in Spring

2008.– Full FE-I4 Review: 2/3/3009– Submission in Summer 2009

– Expect IBL modules late 2010

7.6mm

8mm active

2.8mm

FE-I3 74%

20.2mm

active16.8mm

~2mm

~200μm

FE-I4 ~89%

Char

tere

d re

ticul

e (2

4 x

32) IBM

retic

ule

~19 mm

FE-I3 - lifetime issue – can get three years if move system in y

Use FE-I4. Factor 5 more radiation tolerant than FE-I3. For IBL projectPlus - better matched to track hit distribution at 220. - Common module design for 220 and 420 - 2 x Fe-I4 each plane

NO MCC !!!!!!!!!!!

Radiation dose close to beam at L = 1034 cm-2s-1 is 1015 protons cm-2 per year ( 30 MRad)

3D sensor is good to 1016 protons cm-2, but FE-I3 tolerance is much less (50-100 MRad)

FE-I4 – At 220 m need two FE-I4 sensors per layer rather then six FE-I3. (two FE-I4 sensors at 420m also)FE-I4 – more radiation hard than FE-I3. By moving in Y can get ten years operation at 1034.

Conclusion: Go for FE-I4 sensors as baseline with FE-I3 as fallback. Allows same design of 220 and 420 trackers.

proton

proton

phot

ons

top view1.5 mm fibers

side view0.1 mm fibersQuartz fibers either 1.5 mm or 0.1 mm depending on desired bins.

Cerenkov light goes to microchannel plate PMT indicating proton pased through detector (distance from beam correlated to mass) 9

~50 pe’s

A =216 mB =224 mor both at216 m or224 m

Andrew Brandt, Jim Pinfold, Scott Kolya………

Readout Electronics

6/22/2009 AFP Physics Meeting Andrew Brandt 10

L1 Proton Trigger Time to CTPY A B C D E F G

Particle hits

Detector(at 224m)

Output from

Amplifier

Input to CFD & Logic

Input to Serilaizer

Output to

Cable(1st bit)

In from Cable

(1st bit)

Output from DeSerializer

(strobed)

Input to CTP_IN

Dedicated Cable(s) 750 760 790 805 810 1830 1842 1852

Serial bits800Mb/s 750 760 790 805 860 1885 2035 2045

Serial bits1.6Gb/s 750 760 790 805 840 1865 1950 1960

Alfa TDR(Comparison) 800 840 1921 1941

6/22/2009 AFP Physics Meeting Andrew Brandt 11

Baseline Design with a few mass bins is within the time budget

WE ARE BUILDING A SYSTEM THAT HAS SAME PROBLEMSAS A SPACE PROBE.

MUST BE RELIABLE.

MUST BE SAFE.

MUST WORK FOR LONG PERIODS WITHOUT MAINTENANCE.

Space projects have several stages.

DESIGN

ENGINEERING MODEL

FLIGHT MODEL

If we want to get the reliablity we will need a similar scheme.

What do we have to do ??

• Finish R&D. FE-I4 based tracker. (benefits from Pixel R&D).• Build a pre-production Hamburg Pipe and tracker.• Start production – delay as need TP/TDR approval

2010 Design and build of pre-production Hamburg Pipe. Complete R&D required to finalise

the Tracker Design. Safety Review and Radiation Review.

AFP Technical Report submitted to ATLAS by end of 2010.

2011 Bump bond sensors for pre-production tracker. Install cables

during 2011 LHC shutdown. Install Hamburg Pipe at 220 m with background

monitoring detectors. Build and test the pre-production tracker and assemble

with a Hamburg pipe and 8 metre prototype.

2012/13 Beam test and commissioning of pre-production system.

Finish by early 2013.

2013/14 Build, install and commission trackers and full systems.

GANNT CHART……….

FE-I4 Schedule

3D sensor scheduleIBL and AFP

AFP Tracker schedule 220/420

AFP Detector assembly + test

Overview of FE-I4, sensor and AFP tracker and detector schedule

2010 to Early 2013. We also assume staged installation.

Sequence of build would be as described.

Key Point – phased installation of 220 and 420 detectors to deliver physics as soon as possible and commission key systems.

ATLAS

420 L (2) 220 L (2) 220 R (2) 420 R (2)

8 stations to build, test, install and commission

Each station ( HP + Tracker + Timing + BPM + Wire Alignment)would be tested and internally aligned on a test beam at CERN. This could easily be 1 week to 4 weeks each !

In UK have applied for funding for….

• Hamburg Pipe . Help complete the design and build it. How can we help CERN. Need system engineering so we integrate our detector with the Hamburg Pipe

• R&D for FE-I4 sensor and FE-I4 Tracker.

• Build a pre-production system , commission and test.

System Engineering support from RAL. Must have system drawings.( GT will join us – if we get the funding).

FUNDING IN UK IS VERY TIGHT. WILL NOT KNOW UNTIL April 2010.

MUCH CAN BE DONE ON PAPER. BUT NEED PRE-PRODUCTION OR WE LOSE ANOTHER 1-2 YEARS.

e.g. Safety Review. ( Independent Chair) Radiation Review. Combine with Safety Review. This can be a joint CMS/ATLAS Exercise.

OTHER TECHNICAL ISSUES…………………….

• Cooling system that works in the tunnel• Reference Timing System• Lifetime of the phototubes• General radiation tolerance of systems.

The tracker is radiation hard but needs external services. The timing detector electronics. LV/HV systems. Follow on work of Henning in FP420 report