SuperB update The next step in flavor physics in Europe

David W G S Leith Japan has come to a similar set of priorities, and created a joint Lepton Group to work on ILC R&D, Neutrino and B physics. “Flavour physics and precision measurements at the high-luminosity frontier at lower energies complement our understanding of particle physics and allow for a more accurate interpretation of the results at the high-energy frontier; these should be led by national or regional collaborations, and the participation of European laboratories and institutes should be promoted.” The INFN-hosted SuperB Factory has been able to establish its case due to an important nuance between the European and US strategies. Europe 1) LHC (and LHC consolidation) 2) Accelerator R&D 3) ILC 4) Neutrino 5) astrophysics and cosmology 6) Flavour physics US 1)LHC 2) ILC 3) ILC hosting efforts 4) astrophysics and cosmology 5) Neutrinos 6) Flavour Physics

The story in Italy and Europe The INFN-hosted SuperB project is now firmly established as a part of the long range strategic plan for HEP in Europe. There are regular sessions of the CERN Council, (in its role as steward of European HEP), devoted to review of progress of the SuperB project. SuperB TDR The Board of Directors of INFN approved the SuperB TDR activities as a “Special Project” in the spring of 2009 to support the international activites, and utilize the INFN and Lazio regional financial resources made available to the project.

1)A substantial financial request from Ministry of research has been adressed to the Infrastructure Interministerial panel 2) An exploitation program with the Italian Institute of Technology (IIT) of synchrotron light from SuperB has been designed with five extracted beam lines 3) The corresponding funding has been preliminary favourably discussed at IIT and adds to the construction funds The approval path

Frascati Lab site

Tor Vergata site

Feb 11, 2010F.Forti - SuperB Status7 Collider Hall (  12x30m) area for cooling towers Existing Building Guesthouse 2 “SLAC type buildings” (20x35m) housing 6 klystrons each plus magnet power supplies Electrical Substation upgradable up to 2x63MVA transformers

Feb 11, 2010F.Forti - SuperB Status8 Geological Survey 8

Parameters HERLER Energy (GeV)~7~4 Luminosity (cm -2 s -1 )1x10 36 Circumference (Km)1.32 Crossing angle (rad)66x10 -3 N. of bunches1028 Current (A) Y Tune shift0.1 X Tune shift  x * (cm)  y * (mm)  x (nm) 2.2  y (pm) 5.5  x * (  m)  y * (  m)  l (mm) 55 Wall plug power (MW)17 Energies can be varied, still maintaining the high polarization, away from nominal 7/4. Possible optimal are: 4.18/6.71 or 3.85/7.27

Design based on the “large Piwinski angle and crab waist sextupoles” collision scheme, tested at DA  NE  -Factory with an increase in peak luminosity of a factor of 3 w.r.t. previous scheme The aim is to satisfy the physics requirements – Very high luminosity (from 1 to ) – Flexible parameter choices. – High reliability. – Longitudinally polarized beam (e-) at the IP (>80%). – Ability to collide at the Charm threshold. (E cms =4.0 GeV) SuperB Accelerator Update

Flexibility : Luminosity of it is not a “singularity” in the parameter space. It can be achieved with different settings of parameters, varying independently their values from nominal as: – Increase vertical emittance in HER and LER by x4 – Increase  y * by 40% in both rings – Increase vertical emittance and  y * by 40% in both rings – Increase x and y emittance by 40% – Decrease Vertical tune shift from to 0.09 Maximum currents: 3.5 A in both rings (based on RF best design), however the nominal operating is ≈ 2.1 A Energy asymmetry : Being the choice 4.0/7.0 not good for polarization Reasonable choice are: – 4.18/6.71 (best for machine optimization!) – 3.85/7.27 (higher boost better for detector performance but more power expensive) Latest studies

Machine layout updated (very flexible lattice), including design of injection, RF and ring crossing straight section opposite to IP Beam parameters are now fixed Beam-beam simulations (with codes benchmarked with DA  NE measurements) give feasible and flexible design satisfying the physics requirements. Design of the injection system almost completed (includes polarized e- gun, damping ring, bunch compressor, e+ source, linac) Baseline machine around 1.3 Km long with: – Spin rotators in LER (electrons, ~4 GeV) – Positrons in HER, ~7 GeV

Rings Layout 60 mrad IR Dogleg 140 mrad RF LER SR HER arc LER arc HER arc LER arc e+ e- C = m

David W G S Leith

IIT interested in ………… lithography for 3D scaffolding for bio-engineering laser ablation on biomaterials femtochemistry studies photon induced growth for material science innovative interface diffraction techniques imaging in biomedicine X ray microscopy

Physics update The Physics effort is the result of the close coordination between theorists and experimentalists: ~ 35 theorists coordinated further elucidate the New Physics potential of The super Flavour Factory ~60 experimentalists evaluate the experimental sensitivity to New Physics from studies of Charm, b,  and from spectroscopy. The table of requirements for the Machine is substantially confirmed.

PHYSICS Exploration of CKM parameters at 1% precision. New physics in search for CP violation in D decays, in search LFV in tau decays, in search CP violation in tau decays. Sensitivity to N P phenomena up to energies ~ 30 Tev (beyond LHC energies)

David W G S Leith

Budget Briefing with OHEP Staff: Feb 25, 2010 Page 22 Super B CDR Detector BASELINE OPTION

Budget Briefing with OHEP Staff: Feb 25, 2010 Page 23 SuperB Detector Design Starts From BaBar From Machine and Environment: Smaller Boost (6.7 x 4.18 GeV;  =0.24)  Smaller radius beam-pipe to retain adequate vertex resolution.  Larger barrel acceptance. More particles backward with somewhat softer spectrum forward Some (though not all) components of machine background components will be substantially larger.  Improve detector segmentation, speed, and radiation hardness as needed From general physics goals, which emphasize rare decays, LFV in t physics, and recoil (n) physics Would like best possible hermeticity, good subsystem efficiency and performance. ~ x 50 Luminosity Improved trigger, DAQ, & computing Last, but not least, must replace aging components and technologies. 23 Physics demands and experimental environment drive the needed upgrades

Feb 11, 2010F.Forti - SuperB Status24 International situation US – SLAC + many universities – DOE requested paper to assess scenarios for US partecipation to SuperB. – Three scenarios: A: provide PEP-II / Babar components without additional contributions B: A + detector only contribution C: B + accelerator contribution – Draft completed and being revised – Complete document by next week Canada: – Carleton, McGill, TRIUMF, UBC, U. de Montreal, and Uvic – Drift chamber activities – Funding for the TDR phase

Feb 11, 2010F.Forti - SuperB Status25 International Situation II France – SuperB TDR participation approved at IN2P3 scientific Council in June 2009 – IRFU/CEA, LAL, LAPP, LPSC, LPNHE collaboration – Various aspects of accelerator design – Seismic noise measurement – Electronics and PID UK – Funding cuts make the situation uncertain – QMUL/RAL working on SVT design Russia – BINP involved in accelerator and detector work Poland – Recent new addition of Krakow – Becoming involved Spain – Barcelona and Valencia trying to expand the spanish participation Norway, Israel

Feb 11, 2010F.Forti - SuperB Status27 Italy End July The Italian Minister of Science has presented the SuperB proposal for funding to the Interministerial Committee for Economic Planning (CIPE) – Total of about 700M€ for infrastructure, accelerator and computing – Detector will be funded through normal channels in HEP funding agencies Proposal done in consultation with IIT (Istituto Italiano di Tecnologia) – Exploit synergies with material science research – Possibility of photon beam lines out of the HER Decision expected soon - weeks – Most likely an initial M for civil design and construction – Then the rest after a full blown budget estimate and review – INFN President scheduled to talk at the CERN council on March 18 th

The End

David W G S Leith Summary of Physics Goals Increase by ~ a factor of ten, the precision of BaBar &Belle (*) Challenge CKM at the level of 1% tau LFV sensitivity improvement by a factor between 10 and 100. Explore T-violation in t. Search for magnetic structure of t. Explore CPV in Charm. Continued new spectroscopy exploration. The goal is to gather ~ 75 ab -1 in 5 years at Y(4s), and a few months at Charm threshold with a peak lumi of cm 2 s Marcello A. GiorgiPerugia June 15,2009

The Italian Ministry of Science and Education has asked the Economy Ministry to fund SuperB with the funds to come from beyond the normal INFN budget. There are regular, bi-monthly discussions at the highest level of the Italian government, on the financial arrangement for the next fiscal year, and high hopes of a positive announcement of project approval before the end of this year. After a two day meeting at LNF, in September, the INFN Board of Directors gave their unanimous support to the President’s vision of SuperB as the focus of the national HEP program.

Budget Briefing with OHEP Staff: Feb 25, 2010 Page 37 Model for US Involvement Provide an exciting new physics opportunity at the Luminosity Frontier. Match community interests in the physics, detector and software to allow the formation of the strongest US group Provide upgraded US owned subsystems that provide highest value-added to SuperB. Provide exciting new opportunities for innovative hardware/software development by the US groups. Leverage expertise and facilities to maximize productivity for SuperB and the US groups, and to provide leadership, operational, and physics opportunities for US groups

Feb 11, 2010F.Forti - SuperB Status38 SuperB+Lattice improvements tan  SuperB M H ~ TeV for tan  ~ In the red regions the  are measured with a significance >3  away from zero Arg(  23 ) LR =(44.5± 2.6) o = (0.026 ± 0.005) 1 TeV 10 7 BR (    M 1/2 SuperB Physics Case..in a page…

David W G S Leith Flavour physics is a DNA chip for New Physics