1/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Preparing for the LHCb upgrade

2/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Current LHCb highlights

3/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Why an upgrade? Hadronic final states do not gain at higher luminosities We cannot increase the luminosity due to 1.Hardware trigger 2.Tracking detectors What if we would change the trigger & tracking? Design

4/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 The upgrade plan Solution: Read out detector at 40 MHz. Replace front-end electronics and tracking system. Nikhef involvement: Velo, SciFi, trigger. Solution: Read out detector at 40 MHz. Replace front-end electronics and tracking system. Nikhef involvement: Velo, SciFi, trigger. Velo SciFi

5/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Timeline of the upgrade

6/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Physics motivation Aim: reach experimental precision ≤ theoretical precision

7/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Physics motivation: example Aim: reach experimental precision ≤ theoretical precision CKM angle γ φ s from B s  φφ

8/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Why upgrade the Velo? Today: Si microstrips 2019: Si hybrid pixels Main features of upgraded Velo Reduced distance to the beam (5.1mm) Data driven 40 MHz readout (‘velopix’) Radiation hard Nikhef involvements Velopix chip development Testbeam Module assembly Vacuum envelop (‘RF box’)

9/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Velo testbeam Testbeams in with Timepix3 telescope. Recorded ~25 billion tracks. Four main types of sensors tested: Micron (200 um n-in-p and 150 um n-in-n), Hamamatsu (200 um p-in-n, 35 and 39 um implants) All sensors remain efficient at upgrade conditions (8x10 15 n eq / cm 2 = 50 fb -1 ) Plan 2016: Test VeloPix readout chip, with beam, and at high rate (800 Mhits/s/chip) single pixel hit threshold

10/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Velo modules foot data cables data cables CO 2 outlet CO 2 inlet CF hurdle CO 2 connector (1x) microchannel substrate (1x) hybrid (2x) tile (4x) Module production at Nikhef in a nutshell Precisely assemble the hurdle and the substrate, Precisely (within 50  m) glue the 2 hybrids on the microchannel substrate, Precisely (within 25  m) glue the 4 tiles on the microchannel substrate, Perform wire bonding, Electrically qualify the module in vacuum at -30 o C, Perform metrology.

11/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Velo RF box Vertex resolution: strong function of foil thickness current 300 mu 200 mu 100 mu no RF foil Thickness is challenging vacuum tight electrically conducting (RF) small geometrical tolerances (Δp<10 mbar; Sensors <0.8mm) complicated shape! Thickness is challenging vacuum tight electrically conducting (RF) small geometrical tolerances (Δp<10 mbar; Sensors <0.8mm) complicated shape!

12/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Velo RF box Planned prototypes: half-sized box, 500 mu thick (done!) half-sized box, 250 mu thick (now) full-sized box, 500 micron thick (Q1-Q2 2016) full-sized box, 250 mu thick (Q3 2016)  Production: Q till Q3-2018

13/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Why a Scintillating Fibre Tracker?  High occupancy (<30%) Main limitation for higher luminosity.  Low occupancy (<3%)  Single technology (no IT)  70  m resolution  Fast reconstruction ✔ ✔ ✔ ✔ ✗ Today: OT + IT 2019: SciFi

14/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 SciFi overview 10’000 km of fibres Module (fibres inside) Nikhef participation: Cold box Electronics C-Frames & infrastructure Module production Nikhef participation: Cold box Electronics C-Frames & infrastructure Module production Cold box Electronics

15/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 SciFi cold box Prototype: 3D printed nylon, filled with PUR. Scintillation light detected with SiPM’s Irradiated SiPMs become very noisy.  Need cool to at −40°C Cold box PUR foam SiPM Fibres

16/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Setup cooling test Primary chiller Secondary circuit Setup for cooling tests installed and commissioned  Started 1 st tests last week

17/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 SciFi electronics Clusterization and master board Nikhef Clusterization board: Zero-suppression, builds clusters from neighbouring hits. FPGA: IGLOO2 Master board: 8 optical data links, 2 optical links for slow control, clock Power distribution (DC/DC converters) Clusterization and master board Nikhef Clusterization board: Zero-suppression, builds clusters from neighbouring hits. FPGA: IGLOO2 Master board: 8 optical data links, 2 optical links for slow control, clock Power distribution (DC/DC converters) Cooling frame 50.2 ˚C 21.7 ˚C Powering&cooling tests

18/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 SciFi infrastructure Design work started on the infrastructure C-frames Cabling & cooling Recent workshop at Nikhef with various institutes to kick-off these activities.

19/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 SciFi module production Nikhef clean room ready Used for module production next year All modules produced at Nikhef and Heidelberg Nikhef will make the special modules Tooling design already started All modules produced at Nikhef and Heidelberg Nikhef will make the special modules Tooling design already started

20/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Summary After the upgrade all events look like Pb-Pb collisions.  This will be considered a quiet event! After the upgrade all events look like Pb-Pb collisions.  This will be considered a quiet event!

21/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Backup

22/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Velo upgrade time-line

23/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 recipe for one (prototype) RF box 1. start with 160kg of AlMg4.5, empty the inside 2. fill it up with an Alu mold, and thin layer of wax for space between 3. mill away the outside until left with a 3kg flange and a 0.5 mm thick ‘foil’! 4. remove the wax and enjoy!

24/20 LHCb upgrade, Jeroen van Tilburg Nikhef Jamboree, 14 Dec 2015 Example of impact on SUSY models