situación del ilc y de la red española de futuros aceleradores barcelona, 7- mayo 2009

A. Ruiz (Jornadas ILC. Barcelona,7-8 Mayo 2009)

Situación del ILC y de la Red Española de Futuros

Aceleradores

Barcelona, 7- Mayo 2009A. Ruiz (IFCA)


Esquema de la Presentación

El ILC

Principales eventos desde la reunión de Santiago

Situación del ILC

Red española

Actividades y progreso


Principales eventos desde la reunión de Santiago

LCWS08 (Chicago, Nov 2008) (A. Ruiz, alignment,…)

SiLC Meeting (Santander, Dec. 2008) (most of the spanish groups)

SiD Meeting (Seoul, Febr. 2009) (M. Vos, Spanish Network)

ILD Meeting (SLAC, March 2009) (I. Vila, Spanish Network)

TILC09 (Tsukuba, April 2009) (A. Ruiz, Spanish Network)


Large Hadron electron Collider

Goal: CDR end 2009

2010/12

new physics around 2010/12 ?R. Heuer, LCWS08


CLIC-ILC Collaboration

started November 2007ILC

GDE

CLIC Collaboration Board

ILC CLIC

No additional meetings but reinforced participation ofCLIC experts to ILC meetings and ILC experts to CLIC workshop

Jean-Pierre Delahaye


S. Yamada, LCWS08


TILC09


S. Yamada ( TILC09)…..

A. Ruiz (Jornadas ILC. Barcelona,7-8 Mayo 2009) 13

Asia

EU

NA

13

ILD group

• History– ILD group was formed in 2007– GLD and LDC groups merged into ILD– Baseline parameters were fixed in Sep.2008

• Group structure (for LOI)– Joint steering board (2x3 members)– Working groups (2 contacts for each)

• Optimization• MDI/Integration• Software• Costing

– Sub-detector contacts (1-2 contacts for each)• VTX/Si-trk/TPC/ECAL/HCAL/Mu-det/DAQ/Solenoid

– Representatives for common task groups (1-2 reps for each)• LOI-rep./Physics/Det.-R&D/Soft/Eng.-tool/MDI

• LOI signatories– 695 people signed up– 32 countries– 148 institutions

ILD executive board

Y. Sugimoto, TILC09


R&D plan• Sub-detector R&D is done by “horizontal collaborations”

– ECAL and HCAL: CALICE collaboration– TPC: LC-TPC collaboration– Si trackers: SiLC collaboration– VTX: Many collaborations (LCFI/MAPS/DEPFET/FPCCD/…)– Forward detectors: FCAL collaboration

• ILD R&D goal by 2012– All sub-detector options will continue R&D– The R&D should reach to a point where a rapid decision can be made

between options when the project (ILC) is approved• Big challenges of ILD detector R&D

– Power pulsing• R&D for electronics enabling sufficient power reduction• Vibration test in a sufficiently strong B field

– Further demonstration of PFA• Spectrometer (prototype TPC?) and calorimeter combined • Using high energy hadron beam

Y. Sugimoto, TILC09


• Design an ILC general purpose detector that enables precision measurements on

– Higgs boson properties,

– Gauge boson scattering,

– Effects resulting form extra dimensions,

– Supersymmetric particles, and

– Top quark properties.

• Challenges

– Excellent mass resolution to measure recoil masses, kinematic edges and spectra

– Flavor tagging capability based on a precision vertexing

– Excellent hadronic (or jet) energy resolution capable of separating W(jj) from Z(jj)

– Excellent hermeticity for missing-energy final states

– Works in the ILC environment

• Who are we ? 234 authors, 77 institutes, 18 countries and up.17

SiD project definitionHiro Aihara, TILC09


• 12 mm radius Be beam pipe• 5 barrel yrs/4 disks/3 foward

disks pixel vertex detector (~1Gpixls)

• 5 barrel lyrs/4 disks Si strip tracker (Ro=1.25m)

• 26Xo(20x0.64Xo + 10x1.3Xo) Si-W imaging barrel/end ECAL

• 4.5 Lambda, 40 layer Stainless Steel/RPC barrel/end HCAL

• 5T 1.6GJ CMS like SC coil (R=2.6-3.4m)

• 11x20cm iron Flux Return instrumented by RPC for muons

• Forward ECAL (LumiCal+BeamCal) covers from 90 to 3mrad

• Common readout with 4-deep analog, 162M channels (excl. VTX)

• No global trigger

• Self rad-shielding• 100 Gauss at 1m

from iron• Weighs 7.8K

tonnes

Hiro Aihara, TILC09


R&D issues

19

• Engineering low-mass vertex tracking system •cooling •pulsed power operation

•vibration due to Lorentz force in 5T

• More detailed tracking performance studies

• Effect of non-uniform B (6% Bz drop at the end)•failure mode analysis

Would probably require an engineering prototype in 5T magnet as

the 2007 ILC Tracking R&D Review Committee pointed out.

Would probably require an engineering prototype in 5T magnet as

the 2007 ILC Tracking R&D Review Committee pointed out.

Tracking algorithm requires 7 hits out of 10. So, one hit less will not degrade the performance very much. More study necessary for low pT tracks or those that have fewer than 10 "true" hits because of decays, secondary interactions, or V tracks.

• in-situ alignment via Frequency scanning interferometry and/or Infrared Transparent Silicon Sensors

Hiro Aihara, TILC09


S.Y. Choi, TILC09


B. Barish


Forward Tracking at the next e+e- collider, presented by Alberto RUIZ JIMENO (Universidad de Cantabria)

• On behalf of Spanish Network for Future Linear Accelerators– A lot of activities in Spain on ILC detector and accelerators

• “forward physics” oriented– Forward tracking is very important in many physics cases;– Pose great challenge:

• The material• Hermetic coverage• Significant background at smallest radii • The unfavorable orientation of the magnetic field• Abundant low momentum tracks – pattern recognition

– For ILD, we are nowhere near the goal, and far from the performance of the central tracker

Yulan Li: Vertex and Tracking Summary


Forward Tracking at the next e+e- collider (cont.)

• R&D on Detectors, covering:– sensors: DEPFET pixels, 3D sensors, thinned microstrips,

semitransparent microstrips.– FE electronics, development of DSM r/o chip.– mechanics: deformation and thermal analysis.

• Towards an engineering design

Calibration/alignmentMechanical supportServices

Yulan Li: Vertex and Tracking Summary


Silicon for Large Colliders

Strong Spanish participation in DEPFET IFIC (since 2005)USC, UB, URL, CNM (since 2008)

IFIC, IFCA (since 2005), UB, CNM, USC IFCAEUDET member, several associates

CALICECIEMAT Madrid

Forward Tracker

Coordinated effort : - regular meetings - funding/projects - R&D interests - the forward tracker…

Coordinated ILC detector- effort in Spain

BarcelonaU. R. L.U. B.CNM-IMB

IFCA USC

IFIC

CIEMAT

and activities in accelerators R&D

A. Ruiz, TILC09


Forward Tracking, Physics case: Conclusions

• e+e-Z/*l+l- at the Z-pole has predominantly central final products. But ISR causes increasing fraction of forward-backward at larger center-of-mass energies

• 4, 6,and even 8-fermion abundantly produced with increasing center-of-mass energies. As e.g. t anti-t W+bW-anti-b, rarely fully contained in the central detector

• Scalar electron production has a strong t-channel contribution, with final state electrons peaking in the forward-backward direction

• Final state fermions in di-boson production peaking in the forward-backward direction

• The same for Higgs boson production through vector-boson fusion• Forward-backward region specially important for final states with

electrons, but not only then• Other channels not discussed here make a good case for forward

tracking

A. Ruiz, TILC09


Tracking performance

ILD: We are nowhere near the goal, and far from the performance of the central tracker (figure lines: (1/pT)= 2.0×10-5⊕1.0×10-3/ (pT sin (GeV-1), r = 5 m ⊕ 10 m/ (pT sin ))!!Most of this is plain geometry: unfavorable orientation of the magnetic field ((1/pT)), and large distance of the FTD1 to the interaction point (r

TESLA ref for low polar angle : (1/pT)= 1.8×10-3⊕1.3×10-2/ pT (GeV-1)

A. Ruiz, TILC09


Momentum resolution

ILD momentum resolution

Single muons in ILD00• Performance ~ stable down to 36o • Steep loss between 6-36o

worse forward performance is the result of a combination of

(a) magnetic field orientation (inevitable within 4 detector geometry)

(b) loss of # of measurements in TPC

100 GeV 10 GeV 1 GeV

ILD00

A. Ruiz, TILC09


Momentum resolutionMomentum resolution for electrons (remember t-channel!!)• Ongoing study (Jordi Duarte, IFCA): generate single-electron samples (private,

but available for those interested)• compare tracker-only momentum resolution of single electrons with the LOI

results for muons • Understand tracker-parameter dependence

material!

10 GeV e-

10 GeV -

ILD00 full simulation

A. Ruiz, TILC09


100 GeV 10 GeV 1 GeV

ILD00

a=5,b=10

Impact parameter resolution

LEP 25 70SLD 8 33LHC 12 70ILC 5 10

a (mm) b (mm GeV)

Unprecedented precision(small pixels, 20x20 m2)

Strongly reduce the multiple Coulomb scattering term(material: 0.1 % X

0 / layer ~ 100 m Si)

b

a

100 m

10 m

ILD vertexing performancecentral: a~1.7 mmforward:

performance significantly

worse than extrapolation of

barrel formula with a=5,b=10

a (m) b (m . GeV)

A. Ruiz, TILC09

situación del ilc y de la red española de futuros aceleradores barcelona, 7- mayo 2009

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