Belle II vs. LHCb Kihyeon Cho High Energy Physics Team KISTI (Korea Institute of Science and...

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Belle II vs. LHCb Kihyeon Cho High Energy Physics Team KISTI (Korea Institute of Science and Technology Information) March 11, 2011 BSM mini-workshop KIAS, Korea 1

Transcript of Belle II vs. LHCb Kihyeon Cho High Energy Physics Team KISTI (Korea Institute of Science and...

Belle II vs. LHCb

Kihyeon ChoHigh Energy Physics Team

KISTI (Korea Institute of Science and Technology Information)

March 11, 2011BSM mini-workshopKIAS, Korea

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Kihyeon Cho

CKM Matrix

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αβγαβγ

β

α

γ

Kihyeon Cho

Heavy Flavor Experiments (2011.02)

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Belle/Belle II CDF LHCb

Year 1998-2010 (Belle)2014 – (Belle II)

2001- 2009-

Place KEK, Japan Fermilab, USA CERN, Europe

Collaboration

13/47/~300(Belle II)(Nat./Ins./member)

15/63/620 15/54/730

σ 1 nb (10GeV)

150 μb (2TeV)

300~500 μb(7~14TeV)

CurrentLuminosity

1 ab-1 9 fb-1 10 pb-1

Kihyeon Cho4

Not so near future!!

Grossman, Ligeti, Nir (May 2009)

LHCb

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Kihyeon Cho

Heavy Flavor Physics by LHCb

LHCb is a heavy flavour precision experiment searching for New

Physics in CP Violation and Rare Decays.

√s = 7~14 TeVLHCb: L=2-5 x 1032 cm-2 s-1

bb = 300~500 binel / bb = 160=> 1 “year” = 2 fb-1 (1012 bbar)

http://www.cern.ch

Kihyeon Cho

B physics @ LHCb

7http://www.cern.ch

Kihyeon Cho

Bs->J/psi f0(980)

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Bs -> J/psi f0(980)

f0(980) ->π+π-

http://www.cern.ch

Kihyeon Cho 9

Kihyeon Cho 10

Kihyeon Cho 11

Kihyeon Cho 12A. Golutvin

Belle II

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Kihyeon Cho

Belle Content Belle II

1998~2010 Time Schedule 2014~

8 X 3.5 GeV Energy 7 X 4 GeV

1 ab-1 Luminosity 50 ab-1

1 Billion BBbar events 50 Billion

CP measurement Goal New Physics

Belle

Belle II

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Belle vs. Belle II

To handle 50 times more data and grid farms=> New Data Handling System

Kihyeon Cho

Penguin diagram

b

d

B0

sd

time

KS

t ss

M. Yamakuchi

Kihyeon Cho

If a new particle X exists…

b

d

B0

sd

KS

X ss

This measurement is sensitive to new physics such as SUSY. M. Yamakuchi

Physics at Belle II

New source ofNew source ofCP violationCP violation

New source of New source of flavor mixingflavor mixing

LFV LFV decays decays

SUSY breaking SUSY breaking mechanismmechanism

Precision test Precision test of KM schemeof KM scheme

Super-high statisticsSuper-high statisticsmeasurements:measurements:

SS, sin, sin22WW, etc., etc.

Charm physicsCharm physics New resonances,New resonances, DD00DD00 mixing… mixing…

M. Yamakuchi

Kihyeon Cho18

Start 2014

Luminosity vs. Physics

2023

2018

2013

Kihyeon Cho 19Y. Kwon

Kihyeon Cho 20M. Nakao

Kihyeon Cho 21M. Nakao

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Kihyeon Cho 23

Kihyeon Cho 24M. Nakao

Kihyeon Cho 25Y. Hori

Kihyeon Cho 26Y. Hori

Kihyeon Cho 27Y. Hori

Kihyeon Cho 28Y. Hori

Kihyeon Cho 29Y. Kwon

Kihyeon Cho 30

Kihyeon Cho 31M. Nakao

Kihyeon Cho 32M. Nakao

Kihyeon Cho

More penguin modes @ KISTI

B → ΦπPure EW penguin modeSM Br ~O(10-8)Babar with 232M BB:

UL(Φπ+) < 2.4*10-7 @90%CL

UL(Φπ0) < 2.8*10-7 @90%CL

Draft is almost ready.

B+ → ρ0K*+

Penguin dominant statusWork on progress

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Kihyeon Cho

There are a few interesting results from the heavy flavor physics experiments indicating hints of something unknown…

CP Violation and mixingLeptonic B decayPenguin decays

NP or not-NP, we do not have clear understanding, yet.

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Summary

Kihyeon Cho

What is ahead

The case for flavor physics in the LHC era is still compelling.

LHCb is great tool for heavy flavor physics.

But some aspects, e.g. modes with neutrino will reqiure Super B (Belle II).

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Kihyeon Cho

Summary

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Kihyeon Cho 37

Back up

[email protected]

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Kihyeon Cho

t

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Kihyeon Cho 40

Kihyeon Cho 41

Kihyeon Cho 42

Thank you.

[email protected]

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