Francisco García – CMS PROGRAMME BRAIN STORMING meeting22.11.18

FORWARD UPGRADES:

NF-T2 AND PPSF. García

On behalf of TOTEM, CMS-HIP/UHHelsinki Group

Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC

22.11.18 Francisco García – CMS PROGRAMME BRAIN STORMING meeting 2

OUTLINE

1. INTRODUCTION TO THE APPARATUS

2. NEW FORWARD T2

3. DOUBLE DIAMOND ROMANPOTs

4. HIP CONTRIBUTION

Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC

22.11.18 Francisco García – CMS PROGRAMME BRAIN STORMING meeting

INTRODUCTION TO THE APPARATUS

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What is needed to be upgraded

AFTER LS2 WILL BE:

2x T2 à 2x NF-T2

2x CT-PPS RPS(SD/DD) à 4x PPS RPS(DD)

Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC

22.11.18 Francisco García – CMS PROGRAMME BRAIN STORMING meeting

NEW FORWARD T2

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T2

T2 is based on triple GEM detectorwith a semicircular shape

Distance from IP5: ±14.093mCovering |h|: 5.3 - 6.5Beam Pipe ø: 57 mm

Material budget per plane: 7.19e-3 x/x0

NF-T2

NF-T2 is based on plastic scintillators tileswith sector of a circle segmentation

Distance from IP5: ±15.100mCovering |h|: 4.5 - 5.8New Beam pipe ø: 78 mm

Material budget per plane: 4.0e-3 x/x0

Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC

22.11.18 Francisco García – CMS PROGRAMME BRAIN STORMING meeting

DOUBLE DIAMOND RPS

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RomanPot Package Single detector

Double detector

DD planes havecorrespondedstrips on bothsidesconnected to asinglepreamplifierinput

Currently two RPS are equipped: 2x SD/ 2x DD

After LS2 all four RPS will be equipped: 4x DD

By means of DD planes, (62ps/plane for 8 planes)giving an overall dt = 25 – 30 ps

Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC

22.11.18 Francisco García – CMS PROGRAMME BRAIN STORMING meeting

HIP CONTRIBUTION

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For NF-T2

1. Design of Tiles/Sectors2. Prototype building – Preproduction (2 – 4 pcs)3. Test and Characterization of components4. Mass-production of Tiles/Sectors ( 8 per plane x 4 planes x 2 arms)5. Measurement of Light yield and Mapping of its uniformity6. Integration to mechanics and Electronics7. Precommissioning for each plane8. Installation in the cavern and commissioning

8. Expected man-power contribution 1 FTE per year9. Total budget of 120 k€ (salary not included)

Project execution during LS2 (Q1/2019 – Q1/2021)

Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC

22.11.18 Francisco García – CMS PROGRAMME BRAIN STORMING meeting

HIP CONTRIBUTION (cont.)

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For Double Diamond Detector

1. Procurement of diamond crystals2. Visual inspection and Documentation3. Outsource of Metallization for Diamond crystals4. Electrical test, mostly I-V curve measurement5. Integration to mechanics and Electronics6. High Voltage stability test in Vacuum (50 mbar)7. Test of each strip with 90Sr in Air8. Precommissioning for each plane9. Installation in the tunnel and commissioning

10. Expected man-power contribution 1 FTE per year11. Total budget of 210 k€ (salary not included)

Project execution during LS2 (Q1/2019 – Q1/2021)

Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC

22.11.18 Francisco García – CMS PROGRAMME BRAIN STORMING meeting 8

Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC

22.11.18 Francisco García – CMS PROGRAMME BRAIN STORMING meeting

BACKUP

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T2

Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC

22.11.18 Francisco García – CMS PROGRAMME BRAIN STORMING meeting

BACKUP

10

NF-T2

Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC

22.11.18 Francisco García – CMS PROGRAMME BRAIN STORMING meeting

BACKUP

11

Double Diamond RPS

RPS 220 far

RPS 220 near (DD)

RPS 220 (DD)

RomanPot stations (DD)after LS2 (Run3)