searches for new sources of cp and t violation at justin albert univ. of victoria july 24, 2012...
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Searches for New Sources Searches for New Sources
of CP of CP and Tand T Violation at Violation at
Justin
Albert
Univ. of Victoria
July 24, 2012July 24, 2012
Representing the Representing the BaBar CollaborationBaBar Collaboration
The Experiment
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 2
The Dataset
– 472 million neutral B– 472 million charged B – 690 million c anti-c pairs– 500 million τ+τ− pairs– 117 million Y(3S)– 93 million Y(2S)
Data taking ended 4 years ago…
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 3
The Science Output
… but the physics sure hasn’t ended!
End of data taking24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 4
Overview: 3 Sectors, 5 New Results
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 5
B sector
• b → sss:B → 3K CP V
• b → sℓ+ℓ-: B → Kℓℓ direct CP V search
1) b → ccs:B0 → J/K 0 first direct
observation of T-violation in B system
Charm sector: D+ → K+K0+– T-odd correlation
1) sector: → K0–CP V search
B sector
1) b → sss:B → 3K CP V
2) b → sℓ+ℓ-: B → Kℓℓ direct CP V
3) b → ccs:B0 → J/K 0 first direct
observation of T-violation in B system
arXiv:1201.5897, PRD 85:112010 (2012)
arXiv:1201.5897, PRD 85:112010 (2012)
arXiv:1204.2852, submitted to PRD
arXiv:1204.2852, submitted to PRD
To be submitted to PRL
To be submitted to PRL
B → 3K CP V
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 6
arXiv:1201.5897, PRD 85:112010 (2012) 426 fb-1426 fb-1
arXiv:1201.5897, PRD 85:112010 (2012) 426 fb-1426 fb-1
B → 3K CP V: Dalitz
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 7
arXiv:1201.5897, PRD 85:112010 (2012) 426 fb-1426 fb-1
arXiv:1201.5897, PRD 85:112010 (2012) 426 fb-1426 fb-1
B → 3K CP V: Summary
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 8
arXiv:1201.5897, PRD 85:112010 (2012) 426 fb426 fb-1-1
arXiv:1201.5897, PRD 85:112010 (2012) 426 fb426 fb-1-1
B → Kℓℓ direct CP V
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 9
arXiv:1204.3933, PRD submitted 426 fb-1426 fb-1
arXiv:1204.3933, PRD submitted 426 fb-1426 fb-1
as a
B → Kℓℓ direct CP V
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 10
arXiv:1204.3933, PRD submitted 426 fb-1426 fb-1
arXiv:1204.3933, PRD submitted 426 fb-1426 fb-1
B → Kℓℓ direct CP V
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 11
arXiv:1204.3933, PRD submitted 426 fb-1426 fb-1
arXiv:1204.3933, PRD submitted 426 fb-1426 fb-1
B0 → J/K 0: first direct observation of
T-violation in the B system
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 12
To be submitted to PRL, 426 fb-1426 fb-1
To be submitted to PRL, 426 fb-1426 fb-1
1
B0 → J/K 0: first direct observation of
T-violation in the B system
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 13
To be submitted to PRL, 426 fb-1426 fb-1
To be submitted to PRL, 426 fb-1426 fb-1
S,± C,
±
B0 → J/K 0: first direct observation of
T-violation in the B system
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 14
To be submitted to PRL, 426 fb-1426 fb-1
To be submitted to PRL, 426 fb-1426 fb-1
– +
B0 → J/K 0: first direct observation of
T-violation in the B system
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 15
To be submitted to PRL, 426 fb-1426 fb-1
To be submitted to PRL, 426 fb-1426 fb-1
Charm sector: D+ → K+K0+– T-odd correlation
arXiv:1204.2852, PRD 84, 031103 (2012)
arXiv:1204.2852, PRD 84, 031103 (2012)
D+ → K+K0+– T-odd correlation
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 16
arXiv:1105.4410, PRD 84:031103 (2011)
520 fb-1520 fb-1
arXiv:1105.4410, PRD 84:031103 (2011)
520 fb-1520 fb-1
D+ → K+K0+– T-odd correlation
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 17
arXiv:1105.4410, PRD 84:031103 (2011)
520 fb-1520 fb-1
arXiv:1105.4410, PRD 84:031103 (2011)
520 fb-1520 fb-1
th
D+ → K+K0+– T-odd correlation
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 18
arXiv:1105.4410, PRD 84:031103 (2011)
520 fb-1520 fb-1
arXiv:1105.4410, PRD 84:031103 (2011)
520 fb-1520 fb-1
D+ → K+K0+– T-odd correlation
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 19
arXiv:1105.4410, PRD 84:031103 (2011)
520 fb-1520 fb-1
arXiv:1105.4410, PRD 84:031103 (2011)
520 fb-1520 fb-1
arXiv:1109.1527, PRD-RC 85:031102 (2012)
arXiv:1109.1527, PRD-RC 85:031102 (2012)
sector: → K0–CP V
search
→ K0–CP V search
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert
20
arXiv:1109.1527, PRD-RC 85:031102 (2012)
476 fb-1476 fb-1
arXiv:1109.1527, PRD-RC 85:031102 (2012)
476 fb-1476 fb-1
selection efficiency independent of
→ K0–CP V search
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert
21
arXiv:1109.1527, PRD-RC 85:031102 (2012)
476 fb-1476 fb-1
arXiv:1109.1527, PRD-RC 85:031102 (2012)
476 fb-1476 fb-1
Nsignal(-)=170211Nsignal(+)=169455
→ K0–CP V search
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert
22
arXiv:1109.1527, PRD-RC 85:031102 (2012)
476 fb-1476 fb-1
arXiv:1109.1527, PRD-RC 85:031102 (2012)
476 fb-1476 fb-1
→ K0–CP V search
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert 23
arXiv:1109.1527, PRD-RC 85:031102 (2012)
476 fb-1476 fb-1
arXiv:1109.1527, PRD-RC 85:031102 (2012)
476 fb-1476 fb-1
To be submitted to PRL
To be submitted to PRL
Summary: 5 new results in 3 sectors
24 July 12 Searches for New Sources of CP Violation at Searches for New Sources of CP Violation at J. Albert
24
B sector
1) b → sss:B → 3K CP V
2) b → sℓ+ℓ-: B → Kℓℓ direct CP V search
3) b → ccs:B0 → J/K 0 first direct
observation of T-violation in B system
Charm sector: D+ → K+K0+– T-odd correlation
1) sector: → K0–CP V search arXiv:1109.1527, PRD-RC 85:031102 (2012)
arXiv:1109.1527, PRD-RC 85:031102 (2012)
arXiv:1105.4410, PRD 84:031103 (2011)
arXiv:1105.4410, PRD 84:031103 (2011)
arXiv:1204.3933, PRD submitted
arXiv:1204.3933, PRD submitted
arXiv:1201.5897, PRD
85:112010 (2012)
arXiv:1201.5897, PRD
85:112010 (2012)
See also talks from Vasseur and Kass, with many other
new Babar results!
3.1 deviation from SM prediction
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