Future of Flavor Physics - indico.mpp.mpg.de · Flavor Physics MPP retreat Luigi Li Gioi 2 The concept of “flavor physics” was introduced in the 1970s Rev.Mod.Phys. 81, 1887 (2009)

Future of Flavor Physics

MPP Retreat Bayrischzell, 21 January 2014

Christian Kiesling, Luigi Li Gioi, Hans-Günther Moser

Why are there so many different fermions?What is responsible for their organization into generations / families?Why are there 3 generations / families each of quarks and leptons?Why are there flavor symmetries?What breaks the flavor symmetries?What causes matter – antimatter asymmetry?

Flavor Physics

Luigi Li Gioi 2MPP retreat

The concept of “flavor physics” was introduced in the 1970s

Rev.Mod.Phys. 81, 1887 (2009)

Many projects for the next decade:b-Physicst-Physicscharm-PhysicsKaon-Physicsm-Physics

No projects foreseen for very long term. The future of Flavor Physics will depend on the results of the next years

b-Physics: the next decade b-Physics in the next 10 years will be covered by Belle II and LHCb (including upgrade)Very different environments, complementary physics programs

MPP retreat Luigi Li Gioi 3

CP violation

The nightmare The dream

Summer 2013

Possible scenarios in 10-15 years from now

Depending on results there may be a case for a further luminosity increase by a factor 10 of SuperKEKB

feasibility of a further luminosity upgrade must be considered based on the actual experience at SuperKEKBNo concrete idea at the moment Possibility to precisely measure channels that can only be observed at SuperKEKB: e.g. B → K(*) n n R&D will be needed also for the detector

Japan's Strategy for Future Projects (February 2012)


Rare decays Indirect discovery of New Physics in quantum loops

via high precision measurements


t Physics Lepton Flavor Violation in t decays

About 2.8s from SM prediction = (0.36 ± 0.01)% (due to CPV in kaon sector)

CP Violation in t decay with Ks in the final state

From SM :

BaBar: PRD 85 031102 (2012)

CPV violation in t is expected to be tested at 0.01 % in Belle II


Charm Physics

Starting not before 2020

Two-rings e+e−: L=1035 cm-2 s-1

Linear accelerator for full energyPositron injectorPolarized electron injector

Super-с-τ factory (SCTF) - Novosibirskhttps://ctd.inp.nsk.su/c-tau/

The main purpose Search for effects of CP-violation in the decays of charmed particlesTests of the Standard Model in the decay of the t lepton

t production 5 time less than what expected from SuperKEKB Search and study of an entirely new form of matter: glueballs, hybrids, etc.


Kaon Physics

The goal of KOTO is to observe the decay K

L → p0 n n with the sensitivity

of the Standard Model prediction (2.49 ± 0.39) 10-11, and search for new physics beyond the Standard Model.

KOTO experiment: up to 2019

NA62 experiment: data taken starts in 2014

Measurement of the very rare kaon decay K+→ p+ n n at the CERN SPS to extract a 10% measurement of the CKM parameter |Vtd|.Aims to collect about 80 K+→ p+ n n events at the SM prediction with a signal to background ratio of 10:1 in two years of data taking.


http://koto.kek.jp/

http://na62.web.cern.ch/na62/Home/Home.html

m Physics

COMET (COherent Muon to Electron Transition)

search for coherent neutrino-less conversion of muons to electrons, in the presence of a nucleus, μ−+N(A, Z) → e−+N(A, Z) single event sensitivity B(μ−N→e−N)<10−16

Phase 1 up to 2016, phase 2 from 2021

MEG upgrade

Aiming at a sensitivity improvement ofone order of magnitude(down to 5 x 10-14)

SM prediction: Br < 10-40

Any observation would be an evidence of new physics


http://meg.icepp.s.u-tokyo.ac.jp/

http://meg.icepp.s.u-tokyo.ac.jp/

Very rich Flavor Physics program for the next 15 years

Intensity Frontier: indirect research of new physics with precise measurements

Program complementary to the Energy frontier

MPP strongly involved in Belle II

Hardware development

Preparation for Physics

Future Physics analysis

The future of flavor physics strongly depends from the results of the next decade

MPP has the expertise for developing future projects

Medium size collaborations: the role of MPP can be very important

Conclusion


Documents

Future of Flavor Physics - indico.mpp.mpg.de · Flavor Physics MPP retreat Luigi Li Gioi 2 The concept of “flavor physics” was introduced in the 1970s Rev.Mod.Phys. 81, 1887 (2009)