Download presentation
Presentation is loading. Please wait.
Published byEric Cooper Modified over 9 years ago
1
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 1 New Physics Hints in B Decays and Collider Outlook January 7, 2006, WHEPP9 @ Bhubaneswar
2
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 2 Outline Hints Intro: S f in b sqq and A K + - A K + 0 Hints Collider Links (Reveal Culprit at LHC) ; Jungle Law (Survive Constraints) StrangeBeauty Squark S K S Saga and StrangeBeauty Squark RR Sector (Flavor ⊕ SUSY) ; Kinder, Gentler (Scenarios; B s ; S K* ) 4 th Generation A K + 0 Puzzle, P EW and 4 th Generation ∗ Tailor-made: nondecoupled t ’ and NP Phase ∗ PQCD at LO w/ 4 th Generation: Workable ∗ S K S, S K S w/ 4 th Generation: Robust (against hadronic) ∗ Impact: B s ; Digression Collider Link: B s ; ; b ’, t ’ and FCNC Summary w/ A. Arhrib, C.K. Chua, M. Nagashima, G. Raz and A. Soddu references given at appropriate places 11 32 8
3
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 3 Introduction
4
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 4 Impossible to Review
5
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 5 Not of this school (too restrictive)
6
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 6
7
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 7 b s CPV Phenomena Is Current NP Frontier S f in b sqq A K + - A K + 0 Puzzle (VV polarization likely hadronic origin) Two Hints
8
HEP-EPS 2005, July 21-27, Lisboa CPV in b sss transitions and sin2 All modes (except ’K s and 0 0 K s ) are less than 1.5 away from sin2 from J/ K s Since winter 2005 : improved accuracy better agreement between BABAR and BELLE all systematically below sin2 QCD corrections : sin2 (penguin) > sin2 (tree) [Beneke, hep-ph/0505075] [Cheng,Chua,Soni, hep-ph/0506268] recent QCD factorization estimates : sin2 (penguin)-sin2 (tree)
9
George W.S. Hou (NTU) B0B0 B0B0 B0B0 V cb V tb V* V tb J/ KSKS KSKS V* 2 td Decay No CPV in B → J/ K S Decay M 12 CPV in B 0 → B 0 Mixing
10
George W.S. Hou (NTU) Penguins (Vertex Loops) S K S = sin 2 1 SM (KM) Prediction SUSY Possible SUSY FCNC/CPV Loop Real StrangeBeauty
11
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 11
12
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 12 Puzzle persists, @ > 208
13
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 13 Why a Puzzle ? Large C ? Large EWPenguin ? Suppress Tree CPV Phase Need NP CPV Phase ∵ T and P EW ≈ same strong phase ?
14
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 14 Aim Collider Links: ∗ B s at TeV/LHC ∗ Direct Production of Culprits ⇨ Flavor Scale ≲ TeV Jungle Law: To Eat, Not Get Eaten (Constraints)
15
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 15 StrangeBeauty Squark S K S Saga and StrangeBeauty Squark
16
George W.S. Hou (NTU) R.H. Flavor Mass/Mixing Hierarchy & R.H. Flavor Sector Motivation: Abelian Flavor Symmetry Nir-Seiberg, PLB’93; Leurer-Nir-Seiberg, NPB’94 Commuting Charges mass V CKM no r.h. force Ansatz
17
George W.S. Hou (NTU) R.H. Flavor Mass/Mixing Hierarchy & R.H. Flavor Sector Motivation: Abelian Flavor Symmetry Nir-Seiberg, PLB’93; Leurer-Nir-Seiberg, NPB’94 Chua-WSH, PRL’01: Because of FCNC, Need 4 Texture Zeros (decouple s flavor) Arhrib-Chua-WSH, PRD’01: Decouple d flavor Commuting Charges Ansatz Alternative Picture: Chang, Masiero, Murayama GUT s-b Focus: s-b no r.h. force Prominent r.-h. elements
18
George W.S. Hou (NTU) Right-handed Quarks Inert in SM S Right-handed Squarks SUSY RR Sector Impact b ⇄ s SUSY thru SUSY also important Assume 6 x 6
19
George W.S. Hou (NTU) Level Splitting by Large Mixing Could Drive One State Light 1 CP Phase Strange-Beauty squark Survive b s Constraint !! 1, 0.5 TeV 2, 0.5 1, 0.8 TeV 2, 0.8 Arhrib-Chua-WSH, PRD’01 w/ Large Flavor Violation Strong Dynamics
20
George W.S. Hou (NTU) A Little Note on Formalism … Besides O 1,2 Tree O 3-6 Strong Penguin O 7-10 EM/EW Penguin also O 11,12 /g Dipole Matrix Elements evaluated via Naïve Factorization main effect
21
George W.S. Hou (NTU) Belle BaBar History of S 0 and S ’ 0 200220032004 S 0 ~ -1 in 2003 …
22
George W.S. Hou (NTU) m ES S ’K s Simpler (vs S ’K s ) Frenzied work post summer 2003 S K s S K s ≲ 0 S K s S ’K s ➯ S K s , S ’K s ≅ sin2 B d S ’K s Anticorrel. : Khalil & Kou ’03 for S ’K s [Murayama et al. ’03] Fine Tuned Light Lower gluino mass S K s Lower gluino mass lowers S K s Prefer to keep gluino mass above 500 GeV (L.E. Constraints) 0.5 TeV Preferred Chua-WSH-Nagashima, PRL’04 Data was extreme … faded since.
23
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 23 Kinder, Gentler Benchmarks (SM-like) WSH-Nagashima, in prep.
24
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 24 Scenario 1 Scenario 2 Scenario 4 Scenario 3 due to the anti-correlation cannot accommodate Anti-correlation tolerated for now Check in future. Natural TeV Scale Squark/Gluino w/ Flavor Viol.
25
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 25 Clean Probe for B d Valid Probe of right-handed dynamics B.Grinstein et al BaBar hep-ex/0507038 Belle hep-ex/0507059 discriminate btwn SM and sb~ model Can be tested at SuperB
26
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 26 to be covered @ LHCb!! Pin down Model parameters by B s measurements Scenario 4 can lead to surprises Scenario 4 e x c l u d e d Litmus Test with B s
27
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 27 4 th Generation A K + 0 Puzzle, P EW and 4 th Generation
28
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 28 (Direct) CP Violation Primer Need both CP Violating/Conserving Phase
29
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 29 Naively A CP ( K ) ~ A CP ( K ) A K ≠ A K?A K ≠ A K? A CP ( K ) ~ 0.04 A CP ( K ) A CP ( K ) ~ 16 _d_d d KK u u BB sb A CP ( K ) ~ 12 Large C ? Large EWPenguin ? 3.8 Will focus on EWP, by adding t ’, of a sequential 4 th gen., in PQCD framework Ligeti (and SCET) Charng, Li He, McKellar Wu, Zhou Gronau, Rosner Kim, Oh, Yu Previous talk by H.n. Li PQCD
30
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 30 Z’ Buras @ CKM05 hep-ph/0412086 emphasized likely New Physics in EWP
31
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 31 Natural Impact on EWP w/ CPV Phase Why 4 th Generation?
32
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 32 from unitarity measured Phase safe Set CKM Unitarity Return to later
33
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 33 SM 4 SM 3 new unitarity condition new penguin from t’ Effective Hamiltonian and t’ Effect
34
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 34 Tree QCD penguin EW penguin SM4 naturally Impact on EWP Wilson Coefficients at M W Scale (No New Operators)
35
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 35 Effective SD Couplings
36
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 36 Natural to have particles with mass ~ EW scale, to keep t, W, Z, H company Existence of a 4 th generation: U (t ’ ), D (b ’ ), N, E Fit to EW precision data still not good. 4 th generation has trouble with S parameter, but - Two heavy generations excluded at more than 3 - Two and even three extra generations allowed when neutral leptons relatively light disfavored allowed (Maltoni,) Novikov, Okun, Razanov, Vysotsky Problem with 4 th Generation ? Unitarity demands only. Quite generous.
37
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 37 PDG04 Anyway, Should avoid Precision EW “Overkill” e.g. Higgs
38
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 38 A K and A K in PQCDF at LO SM 3
39
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 39 Factorizable Non- Factorizable Penguin Annihilation w/ Phase PQCD TP PaPa
40
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 40 Factorizable Non- Factorizable P EW (Ta)(Ta) C PQCD
41
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 41 B 0 B 0 B0 00 B0 00 B 0 B 0 But A K and A K in PQCDF at LO 20012005
42
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 42 A K and A K with 4 th Generation SM 4 WSH-Nagashima-Soddu, PRL’05
43
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 43 EWP t’ Effect through EWP
44
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 44 A CP ( K ) ~ 12, A CP ( K ) ~ +0.04 ? ☞ A CP ( K ) almost independent of t ’ ☞ A CP ( K ) A CP ( K ) > 0.1 demands sb ~ /2 Large m t ’ and r sb Large Effect
45
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 45 N.B. ∵ T-P sign diff. ∴ perturbative Vary ~ changing (default) A CP (K ) ~ 0 from Cancellation btwn sb and 3 “adjustable” Vary : A CP (K ) ~ Possible
46
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 46 and Constraints SM 4
47
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 47 4 th generation not excluded favored allowed Arhrib and WSH Yanir Hattori, Hasuike and Wakaizumi Independently
48
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 48 From Constraints Some parameter space allowed sb ~ /2 favored by both A CP ( K ) and ⊕ A CP ( K ) ~ 12, A CP ( K ) ~ +0.04 ?
49
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 49 Predictions:,, S K , A K SM 4
50
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 50 PDG04 New Avg. BR well satisfied Difficult even at SuperB ( SM 3 sensitivity) SM 3 N.B. ( RH probe ) is like SM3 exp
51
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 51 and Prospects Just Around Corner! (SM3-like) ~ to ! Defintely BSM if measured ! Phase
52
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 52 Just Around Corner ? Tevatron ? LHC(b) ! Jesik @ LP05 Experiment: Know in few years
53
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 53 Naively assumed did not care about One may have suspicion that * b → s would spill over into s → d * ~ 0 is not necessarily true ! Reckoning with s d and b d WSH, Nagashima, Soddu, hep-ph/0508237 (PRD’05) V ts V tb Large and Complex Feed V td V ts Complexity Need V t’d V t’s to Compensate
54
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 54 Parameterization for B’s (& K’s) From previous study WSH, Soni, Steger 1987 We need to deal with mixing matrix in detail to keep Unitarity SM3 impose
55
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 55 Constrain s d from K Physics (J. Bijnens et al.) (E. Pallante et al.) Therefore…. well-satisfy ! “Standard” No SM3 solution (shaded )
56
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 56 well-satisfy Hard to tell apart (non-trivial) with present precision ∵ stringent s d vs V ub ~ 0.01 e -i
57
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 57 Double Cabibbo Large/Imaginary x ~ 0.22 “Typical” CKM Matrix
58
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 58 Implication for Rate enhanced up to almost two orders !! Grossman-Nir Current Upper Bound Very hard to measure and challenging… SM 3 enhanced to or even higher !! In general larger than !! ∵ Large CPV Phase
59
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 59
60
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 60 Blucher @ LP05
61
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 61 Other Implications is not in trouble (currently ) but, D 0 Mixing of great interest ! sum of first row …? b’ and t’ Search - m b’ just above 200 GeV feasible at Tevatron Run II - Decay via b’ c Charged Current - Discovery at LHC not a problem generic study w/ Arhrib
62
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 62 Right trend for S K, S K S K , S K in preparation w/ Nagashima, Raz, Soddu QCDF NLO s4 PQCD LO NF (QCDF-LO)
63
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 63 Robustness Against Hadronic Uncertainty Vary H ard spectator weak A nnihilation around “s4” value of BRs hadr. uncertainty S K, S K Robust ! S ’K diluted away.
64
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 64 PQCD at NLO ? Our PQCD result is at LO. A recent study finds much larger color-suppressed tree (C) at NLO. (previous talk by Hsiang-nan Li) Li, Mishima, Sanda, hep-ph/0508041; may still need EWP Comment: Even if C larger than expected More param. Space for 4th gen. Solve both A K + and S 0 K 0 problems!? proposed work WSH, Li, Nagashima
65
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 65 Collider Link: B s ; ; b ’, t ’ and FCNC
66
HEP-EPS 2005, July 21-27, Lisboa More data ! B factories : ~2-4 the present statistics at the end of 2008 Tevatron: ~2-4 the present statistics before LHC startup Cleo-c : ~10 the present statistics at ’’ (3770)) LHCb : m s : Outlook Expected unmixed B s D s sample in one year of LHCb data taking 5 observation up to m s = 68 ps -1 1 yr t ~ 40 fs B s J/ sensitive to the weak phase of V ts SM: s ~ 0.04. One year : (sin s ) ~0.06 LHCb calorimeter at CERN Sensitivity to NP in the B s sector B s System B s right
67
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 67 e x c l u d e d R.H. Flavor SfSf A K + 0 and S f 4 th Generation
68
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 68 standard sbeauty reference 1 Discovery (> 10 evts) up to 300 GeV w/ 2 fb − 1 & sin 2 m >0.5 Single vs double b-tag contain info on sin m b-tag cross section: check consistency vs mass A goner for Tevatron: Too Heavy! Collider Outlook K. Cheung and WSH, PRD’04
69
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 69 CMS Brochure (03) Collider Outlook
70
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 70 Search for S trange- B eauty squark at LHC e.g. CMS Brochure (03) Similar to study in PRD’04, K. Cheung and WSH [for TeV]
71
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 71 Detection Basically, just a “b”-squark in Production so, Discovery not a problem. Question is Decay: bino LSP or gravitino Can be Stable? (LSP) In principle Heavy MIPs Need Good b-tagging ! [s-tagging?] sin 2 is b fraction
72
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 72 b ’, t ’ and FCNC at LHC Top FCNC ≲ 10 6 even with b’ Too small to probe SM Result in preparation w/ Arhrib
73
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 73 b ’, t ’ and FCNC at LHC 10-6 10 3 - 10 2 10 4 - 10 3
74
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 74 Summary Hint at New Physics S f in b sqq and A K + - A K + 0 Hint at New Physics Explore NP CPV in b s: Large, Unique Phase S B - R.H. S trange B eauty - 4 th Generation Predictions for B s, S f patterns, A CP in b s , etc. Large K L for 4 th Gen. Direct Search at Collider CPV Study at (Super)B Factory
75
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 75 Backup
76
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 76
77
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 77 LL LR RR RL Kane et al., PRD70, 035015 (2004)
78
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 78 B to K decays P EW color suppressed
79
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 79 My first B paper
80
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 80 Why use conservative PDG04 ? Expt not yet Fully stable 2005 Great Agreement Belle 2004 ‘04
81
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 81 Buras @ CKM05 R c - R n Problem
82
NP in B and Collider George W.S. Hou (NTU) WHEPP-IX 82 R c - R n basically OK in PQCD Buras @ CKM05
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.