View on Recent Results from LHCb Niels Tuning

View on Recent Results from LHCb Niels Tuning on behalf of the LHCb collaboration 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 1/60

Disclaimer • In the rest of the talk I will assume the speed of light to be constant and that particles cannot travel faster than c. 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 2/60

Search for New Physics with B-physics Search for new particles or forces via their virtual loop contributions in B decays 1) CP Violation: Search for CP asymmetries incompatible with SM fits. Study of couplings of New Physics Examples: 1. Bs 0 →J/ψφ “Box” diagram: ΔB=2 b s 30 Nov 2011 s 2) Rare Decays: Search for enhanced BR’s or decay distributions that deviate from SM Examples: 2. B 0 →K*μμ 3. B 0 s →μμ “Penguin” diagram: ΔB=1 b b s μ μ Niels Tuning - View on Recent Results of LHCb - APPS 2011 3/60

Reminder: Mixing and Rare Decays for discoveries B 0 mixing pointed to the top quark: ARGUS Coll, Phys. Lett. B 192: 245, 1987 K 0→μμ pointed to the charm quark: GIM, Phys. Rev. D 2, 1285, 1970 … … … b d 30 Nov 2011 d b d Niels Tuning - View on Recent Results of LHCb - APPS 2011 s μ μ 4/60

Menu: LHCb “Superstars” “Box” diagram: ΔB=2 1) B 0 s → J/ψφ b s 2) B 0 → K*μμ b Other LHCb talks: § today: W. Hulsbergen in BSM session 30 Nov 2011 b “Penguin” diagram: ΔB=1 3) B 0 s → μμ § tomorrow N. Serra s in discrete symmetries session Niels Tuning - View on Recent Results of LHCb - APPS 2011 s μ μ 5/60

Menu: LHCb “Superstars” B 0 s→ J/ψφ 1) B 0 s → J/ψφ 2) B 0 → K*μμ B 0→K*μμ 3) B 0 s → μμ B 0 s→μμ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 6/60

Commonality: “FCNC” b γ s 1) B 0 s → J/ψφ 2) B 0 → K*μμ B 0 s→ J/ψφ B 0→K*μμ 3) B 0 s → μμ B 0 s→μμ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 7/60

Commonality: “FCNC” b W t 1) B 0 s → J/ψφ 2) B 0 → K*μμ γ s B 0 s→ J/ψφ B 0→K*μμ 3) B 0 s → μμ B 0 s→μμ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 8/60

Commonality: “FCNC” b W t 1) B 0 s → J/ψφ 2) B 0 → K*μμ W s B 0 s→ J/ψφ B 0→K*μμ 3) B 0 s → μμ B 0 s→μμ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 9/60

Sensitive to NP: appetizer 1) B 0 s → J/ψφ B 0→K*μμ (4/3) AFB B 0 s→ J/ψφ 2) B 0 → K*μμ 3) B 0 s → μμ 30 Nov 2011 B 0 s→μμ Niels Tuning - View on Recent Results of LHCb - APPS 2011 10/60

CDF, Conf Note 10206 Status before Summer B 0 s→ J/ψφ 1) B 0 s → J/ψφ Ø Decreased 3σ→ 1σ 2) B 0 → K*μμ Ø Hint for deviaton B 0→K*μμ BABAR: PRL 102, 091803 (2009) CDF: Note 10047 (2010) Belle: PRL 103, 171801 (2009) φs 3) B 0 s → μμ SM p-value 1. 9% CDF, ar. Xiv: 1107. 2304 Ø B 0 s→μμ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 m 11/60

The LHCb Detector 23 sep 2010 19: 49: 24 Run 79646 Event 143858637 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 12/60

The LHCb Detector B 0→K*μμ B 0 s→μμ MUON PID B 0→K*(Kπ)μμ CALO RICH 2 T MAGNET Lifetime, B 0 s → J/ψφ RICH 1 TT VELO Interaction Point Suppress background, σ(MB) B 0 →K*μμ B 0 s →μμ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 13/60

LHC and LHCb performance § § § LHC and LHCb show excellent performance Analyzed 330 pb-1 for Summer conferences 1011 bb-pairs produced! x 4. 7 ~0. 3 fb-1 for Summer § Optimal use of LHC beam: Ø “Lumi levelling” at 3. 5 1032 (Design was 2. 0 1032 !) Max. luminosity for entire fill Ø With maximum detector occupancy 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 14/60

Menu: LHCb “Superstars” “Box” diagram: ΔB=2 1) B 0 s → J/ψφ b s s b 2) B 0 → K*μμ “Penguin” diagram: ΔB=1 3) B 0 s → μμ b s μ μ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 15/60

B 0 s → J/ψφ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 16/60

B 0 s → J/ψφ: Introduction § Interfering decay amplitudes: 1) B 0 s→J/ψφ 2) B 0 s → B 0 s→ J/ψφ B 0 s→J/ψφ t >0. 3 ps N = 8276 ± 94 σ ~ 7 Me. V L ~ 337 pb-1 NB: Despite hadronic environment very clean signals! A. S. Dighe, I. Dunietz, R. Fleischer Eur. Phys. J. C 6: 647 -662, 1999 30 Nov 2011 eiφs Niels Tuning - View on Recent Results of LHCb - APPS 2011 17/60

B 0 s → J/ψφ: Analysis • Angular analysis Ø B 0 s → J/ψφ: § Pseudo-scalar → 2 vectors § CP ~ (-1)L L=1 A┴ CP= - L=0, 2 A 0, A║ CP=+ • Flavour tagging b: use this b to check if other b oscillated 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 18/60

B 0 s → J/ψφ: Analysis • Angular analysis Ø B 0 s → J/ψφ: § Pseudo-scalar → 2 vectors § CP ~ (-1)L L=1 A┴ CP= - L=0, 2 A 0, A║ CP=+ • Flavour tagging B 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 19/60

Intermezzo: Tagging with Bs 0→Ds-π+ 1) Need “flavour specific decay” § N(Bs 0→Ds-π+) = 9189 ± 147 2) Bs oscillates fast § Bs 0→Ds-π+ or Bs 0→ B s 0→ Ds+π- LHCb-CONF-2011 -050 3) Need good proper time resolution § § § ε: tagging efficiency ω: wrong tag fraction ε(1 -2ω)2: tagging power Amix = (N(B→B)-N(B→ B))/ (N(B→B)+N(B→ B)) Amix = (1 -2ω) cos Δmst 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 20/60

Intermezzo: Tagging with Bs 0→Ds-π+ 1) Need “flavour specific decay” § N(Bs 0→Ds-π+) = 9189 ± 147 2) Bs oscillates fast § Bs 0→Ds-π+ or Bs 0→ B s 0→ Ds+π- LHCb-CONF-2011 -050 3) Need good proper time resolution LHCb-CONF-2011 -050 § § § ε: tagging efficiency ω: wrong tag fraction ε(1 -2ω)2: tagging power Amix = (N(B→B)-N(B→ B))/ (N(B→B)+N(B→ B)) 1 -2ω Bs 0→Ds-π+ Amix = (1 -2ω) cos Δmst 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 21/60

LHCb-PAPER-2011 -021 -001 LHCb-CONF-2011 -049 B 0 s → J/ψφ: Analysis • Angular analysis Ø B 0 s → J/ψφ: § Pseudo-scalar → 2 vectors § CP ~ (-1)L L=1 A┴ CP= - L=0, 2 A 0, A║ CP=+ CP B 0 s→ J/ψφ LHCb-PAPER-2011 -010 -002 LHCb-CONF-2011 -050 • Flavour tagging § ω = 36% § εD 2 = 3. 1± 0. 8% Ø PDG: Δms=17. 77 ± 0. 120 ps-1 Ø LHCb: Δms=17. 725± 0. 041± 0. 025 ps-1 (preliminary) 30 Nov 2011 Bs 0→Ds-π+ Niels Tuning - View on Recent Results of LHCb - APPS 2011 22/60

B 0 s → J/ψφ: Angular Analysis 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 23/60

B 0 s → J/ψφ: Results ΔΓs LHCb-CONF-2011 -049 • Most precise value of φs! φs=0. 13 ± 0. 18(stat) ± 0. 07(sys) rad Ø Consistent with SM: φs=-0. 03 = SM =1σ φs (preliminary) ΔΓs=0. 123 ± 0. 029(stat) ± 0. 008(sys) ps-1 CDF: Γs=0. 076 ± 0. 059(stat) ± 0. 006(sys) ps-1 D 0: Γs=0. 19 ± 0. 07 (stat) ± 0. 015(sys) ps-1 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 24/60

B 0 s → J/ψφ: Comparison 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 25/60

Sub-Summary 1) B 0 s → J/ψφ Most precise measurement of φs Ø φs=0. 13 ± 0. 18(stat) ± 0. 07(sys) rad Ø Combine with B 0 s → J/ψf 0 § (preliminary) 2) B 0 → K*μμ Ø See talk from W. Hulsbergen today 3) B 0 s → μμ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 26/60

B 0 → K*μμ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 27/60

B 0→K*μμ: Motivation A. Ali, Th. Mannel, T. Morozumi Phys. Lett. B 273 (1991) 505 -512 Hadronic uncertainties largely cancel in angular asymmetries § Forward-backward asymmetry AFB easiest Ø μ+ θl μ- K* (4/3) AFB Example: W. Altmannshofer et al. , JHEP 0901: 019, 2009 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 28/60

B 0→K*μμ: Motivation A. Ali, Th. Mannel, T. Morozumi Phys. Lett. B 273 (1991) 505 -512 Hadronic uncertainties largely cancel in angular asymmetries § Forward-backward asymmetry AFB easiest Ø (4/3) AFB Example: W. Altmannshofer et al. , JHEP 0901: 019, 2009 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 29/60

B 0→K*μμ: Status Belle, 657 M BB PRL 103, 171801 (2009) • • AFB measured at B-factories and CDF All opposite sign for AFB? Babar, 465 M BB PRD 79, 031102 (2009) SM Ø Hint of deviation? CDF 6. 8 fb-1 ar. Xiv: 1108. 0695 NB: Size of C 7 constrained by BR(B 0→K*γ) but not the sign. 30 Nov 2011 SM Niels Tuning - View on Recent Results of LHCb - APPS 2011 30/60

B 0→K*μμ: at LHCb • • • Reject J/ψ and ψ’ resonances Veto peaking backgrounds Select with boosted decision tree § ψ' E. g. B, J/ψ, K* vtx, FD, IP, … Ø N(B 0→K*μμ) = 302 ± 20 § § § Babar: Belle: CDF: J/ψ 60 247 164 B 0 LHCb-CONF-2011 -038 N = 302 ± 20 L ~ 309 pb-1 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 31/60

B 0→K*μμ: at LHCb • • • Reject J/ψ and ψ’ resonances Veto peaking backgrounds Select with boosted decision tree § ψ' E. g. B, J/ψ, K* vtx, FD, IP, … Ø N(B 0→K*μμ) = 302 ± 20 § § § Babar: Belle: CDF: J/ψ 60 247 164 B 0 LHCb-CONF-2011 -038 N = 302 ± 20 L ~ 309 pb-1 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 1<q 2<6 Ge. V 2 N = 70 ± 10 L ~ 309 pb-1 32/60

(preliminary) B 0→K*J/ψ: Asymmetry • Validate analysis on B 0→K*J/ψ: Ø FL = 0. 556± 0. 015 (Babar: 0. 556± 0. 009± 0. 010) Ø AFB = -0. 006± 0. 008 Ba. Bar, PRD 79, 031102 (2009) NB: q 2 = m. J/ 2 = 9. 6 Ge. V 2 signal sideband μ+ θl μ- K* LHCb-CONF-2011 -038 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 33/60

B 0→K*μμ: Asymmetry • Ch. Bobeth, G. Hiller, D. van Dyk JHEP 1107: 067, 2011 Validate analysis on B 0→K*J/ψ: Ø FL = 0. 556± 0. 015 (Babar: 0. 556± 0. 009± 0. 010) Ø AFB = -0. 006± 0. 008 • • Measure AFB and FL in bins of q 2 Event-by-event acceptance correction LHCb-CONF-2011 -038 m 2μμ= 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 34/60

B 0→K*μμ: Comparison J/ψ ψ' LHCb-CONF-2011 -038 Belle, PRL 103, 171801 (2009) Babar, PRD 79, 031102 (2009) CDF, PRL 106, (2011) 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 35/60

B 0→K*μμ: Asymmetry • • Ch. Bobeth, G. Hiller, D. van Dyk JHEP 1107: 067, 2011 Still limited statistics Good agreement with SM (4/3) AFB LHCb-CONF-2011 -038 Example: W. Altmannshofer et al. , JHEP 0901: 019, 2009 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 36/60

B 0→K*μμ: Comparison 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 37/60

Sub-Summary 1) B 0 s → J/ψφ 2) B 0 → K*μμ Ø Most precise measurement of AFB § Zero-crossing point is next Ø Still limited statistical precision § 3 x more data on tape Ø More angular observables available 3) B 0 s → μμ U. Egede at al JHEP 0811: 032, 2008 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 38/60

B 0 s → μμ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 39/60

B 0 s→μμ: Motivation § Branching Ratio very sensitive to NP models A. Buras, G. Isidori, P. Paradisi Phys. Lett. B 694: 402 -409, 2011 § BR strongly enhanced in MSSM at large tanβ: Ø tan 6 /m. A 4 Example: 10 x higher BR for tan =50(20), m. H+=800(200) Ge. V Allowed parameter space from fit in constrained MSSM: 1 -CL tanβ=50 m. H+=200 Ge. V 00 =5 1 Mt , M e. V 50 =8 t 2 e. V G . ov /60 si c 30 τ− d @ + 5σ MS → τ C , A H : G -1 fb 10 x SM → MH+ (Ge. V) → tan O. Buchmueller et al. Eur. Phys. J. C 64: 391 -415, 2009 limits at CMS: Gennai et al. Eur. Phys. J. C 52: 383 -395, 2007) 30(Direct Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 A. Buras et al. , Nucl. Phys. B 659: 3, 2003 40/60

B 0 s→μμ: Motivation § Branching Ratio very sensitive to NP models A. Buras, G. Isidori, P. Paradisi Phys. Lett. B 694: 402 -409, 2011 § BR strongly enhanced in MSSM at large tanβ: Ø tan 6 /m. A 4 Example: 10 x higher BR for tan =50(20), m. H+=800(200) Ge. V Allowed parameter space from fit in non-univ Higgs mass (NUHM): 1 -CL tanβ=50 m. H+=200 Ge. V 00 =5 1 Mt , M e. V G 50 =8 t 2 e. V G 10 x SM → MH+ (Ge. V) → tan O. Buchmueller et al. Eur. Phys. J. C 64: 391 -415, 2009 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 A. Buras et al. , Nucl. Phys. B 659: 3, 2003 41/60

B 0 s→μμ: Motivation § Branching Ratio very sensitive to NP models A. Buras, G. Isidori, P. Paradisi Phys. Lett. B 694: 402 -409, 2011 § BR strongly enhanced in MSSM at large tanβ: Ø tan 6 /m. A 4 Example: 10 x higher BR for tan =50(20), m. H+=800(200) Ge. V 1 -CL tanβ=50 m. H+=200 Ge. V 00 =5 1 Mt 50 =8 t 2 e. V G 5 x 10 -9 , M 1 x 10 -8 e. V G 2 x 10 -8 10 x SM → MH+ (Ge. V) → tan SM-like Curves obtained through Super. Iso, (eg. F. Mahmoudi, ar. Xiv: 0906. 0369) 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 A. Buras et al. , Nucl. Phys. B 659: 3, 2003 42/60

B 0 s→μμ: at LHCb Analysis based on 1) Mass 2) Kinematic / geometrical (eg. τB, IPSμ, DOCA, isolation, …) Ø Compare observed to expectation Candidate B 0 s→μμ event, 14 June 2011 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 43/60

B 0 s→μμ: mass LHCb preliminary 2011 √s = 7 Te. V L ~ 150 pb-1 B 0 s→μμ? 5. 4 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 44/60

B 0 s→μμ: mass LHCb preliminary 2011 √s = 7 Te. V L ~ 150 pb-1 B 0 s→μμ? 5. 4 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 45/60

B 0 s→μμ: mass σ(M) = 16 Me. V σ(M) = 40 Me. V J/ψ(1 S) (1 S, 2 S, 3 S) 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 46/60

σ(m) (Me. V) B 0 s→μμ: mass ked on c e h c ce MC enden dep Linear mμμ (Me. V) σ(M)m. B = 24 Me. V (confirmed with B→ππ decays) J/ψ(1 S) (1 S, 2 S, 3 S) 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 47/60

B 0 s→μμ: topological μ Kinematic / geometrical: 1) 2) 3) 4) B lifetime IP μ , IPSμ , p. T, μ , min(p. T, μ) DOCA 2 muons μ and B isolation Ø Combine the info (“BDT”) μ Signal (B 0(s)→hh) Background (mass sidebands) 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 48/60

(preliminary) § § Ø Analysis based on 300 pb-1 Highest BDT-bin similar to CMS: Observe 2 events, expect: § ~0. 7 background § ~0. 8 SM Less background B 0 s→μμ: event yields Expected B 0 s→μμ yield (SM) 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 49/60

(preliminary) § § Ø Analysis based on 300 pb-1 Around Bs mass ± 20 Me. V: Observe 11 events, expect: § ~9. 5 background § ~1. 2 SM Less background B 0 s→μμ: event yields Expected B 0 s→μμ yield (SM) 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 50/60

B 0 s→μμ: Branching Ratio • Main normalization channels: • • B 0→K+π • Bs 0→ J/ψφ B+→J/ψK+ CDF: fs/(fd+fu)=0. 142± 12% (ignoring SU(3) breaking effects and environment dependent) PDG, a. o. : CDF, Phys. Rev. D 77: 072003, 2008 Belle: BR(Bs→J/ f )=1. 15 10 -3± 25% (23. 6 fb-1, 20% of available dataset) R. Louvot, ar. Xiv: 0905. 4345 v 2 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 51/60

B 0 s→μμ: Normalization: fd/fs: Largest uncertainty in BR determination • Main normalization channels: • B+→J/ψK+ • B 0→K+π • Bs 0→ J/ψφ CDF: fs/(fd+fu)=0. 142± 12% (ignoring SU(3) breaking effects and environment dependent) PDG, a. o. : CDF, Phys. Rev. D 77: 072003, 2008 Belle: BR(Bs→J/ f )=1. 15 10 -3± 25% (23. 6 fb-1, 20% of available dataset) R. Louvot, ar. Xiv: 0905. 4345 v 2 Novel method: • Use Bs→Ds-π+ and B 0→D-K+ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 R. Fleischer, N. Serra, N. T, Phys. Rev. D 82: 034038, 2010 52/60

B 0 s→μμ: Normalization: fd/fs B 0→D-K+ B 0 s→Ds-π+ LHCb, ar. Xiv: 1106. 4435 Accepted by PRL Novel method: • Use Bs→Ds-π+ and B 0→D-K+ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 R. Fleischer, N. Serra, N. T, Phys. Rev. D 82: 034038, 2010 53/60

B 0 s→μμ: Normalization: fd/fs IP of (Ds+μ-)-pairs: Ds mass of (Ds+μ-)-pairs: LHCb, ar. Xiv: 1111. 2357 Submitted Average with semi-leptonic analysis: • Use Bs→Ds-μ+X and B 0→D-μ+X Combined value for fs/fd: LEP+Tevatron: fs/fd = 0. 271± 0. 027 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 54/60

B 0 s→μμ: Branching Ratio BR(B 0 s → μμ)SM = (0. 32 ± 0. 02) x 10 -8 § Expected limit: BR(B 0 s→μμ)<1. 5 x 10 -8 @ 95% CL (bkgd+SM) § Observed limit: BR(B 0 s→μμ)<1. 6 x 10 -8 @ 95% CL (preliminary) Ø p-value background only: 14% Observed Expected (bkgd+SM) L=300 pb-1 LHCb-CONF-2011 -037 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 55/60

B 0 s→μμ: LHCb + CMS combination Ø Observed limit: BR(B 0 s→μμ)<1. 08 x 10 -8 @95%CL Ø p-value background only: 8% CMS: (CMS only: BR<1. 9 10 -8) CMS-PAS-BPH-11 -019 ; LHCb-CONF-2011 -047 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 56/60

Sub-Summary 1) B 0 s → J/ψφ 2) B 0 → K*μμ 3) B 0 s → μμ 30 Nov 2011 Ø Best limit on BR ! Ø BR < 3. 4 x BRSM Ø Plenty of room for NP Ø The smaller BR, the more critical is knowledge on fd/fs Niels Tuning - View on Recent Results of LHCb - APPS 2011 57/60

CDF, Conf Note 10206 Status before Summer B 0 s→ J/ψφ Ø SM p-value 44% 2) B 0 → K*μμ Ø Hint for deviaton B 0→K*μμ BABAR: PRL 102, 091803 (2009) CDF: Note 10047 (2010) Belle: PRL 103, 171801 (2009) 1) B 0 s → J/ψφ 3) B 0 s → μμ BR(B 0 s → μμ)= SM p-value 1. 9% B 0 s→μμ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 CDF, ar. Xiv: 1107. 2304 Ø Ø 58/60

LHCb after Summer B 0 s→ J/ψφ 1) B 0 s → J/ψφ Ø φs=0. 03 ± 0. 16(stat) ± 0. 07(sys) rad 2) B 0 → K*μμ Ø B 0→K*μμ AFB<0 3) B 0 s → μμ Ø BR(B 0 s → μμ)<1. 5 10 -8 B 0 s→μμ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 59/60

Thank you 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 60/60

Things I did not show… 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) Charm (and ΔACP) B 0 → Kπ B 0 → DK*, B+ → DK+ B 0 → K*γ B 0 s → φφ B*(*) spectroscopy Λb B+c→ J/ψπππ + Bc → J/ψπππ Semi-leptonic W/Z see talk by N. Serra D 0→ KK D 0→ ππ B 0 s→ φφ B 0→ K*γ Λb 0→ D 0 p+π- Λb 0→ Λc+π- Z 0→μμ B 0 s→ φγ 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 61/60

BR(B 0 s→μμ) vs tan 6 § § Branching Ratio very sensitive to NP models A. Buras, G. Isidori, P. Paradisi Phys. Lett. B 694: 402 -409, 2011 BR strongly enhanced in MSSM at large tanβ: tan 6 /m. A 4 G. Isidori & P. Paradisi , Phys. Lett. B 639: 499 -507, 2006. 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 A~tan 3β 62/60

Intermezzo: OPE § Example: B→μμK § Think of Fermi…: remove W from theory: e. g. through cc: B→J/ (μμ)K 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 63/60

Intermezzo: OPE § Example: B→μμK § § Think of Fermi…: remove W from theory Add QCD corrections: e. g. through cc: B→J/ (μμ)K 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 64/60

Intermezzo: OPE § Example: B→μμK § § Think of Fermi…: remove W from theory: Add penguin operators: A(B→μμK) = <μμK|Heff|B> ~ GFVtb. V*ts Ci<μμK|Oi|B> 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 65/60

Intermezzo: OPE § Example: B→μμK § § Think of Fermi…: remove W from theory: Add penguin operators: § Ci: Wilson coefficients § Calculable Oi: operators § Long distance hadr. eff. § Ø“Master formula for weak decays”: A(B→μμK) = <μμK|Heff|B> ~ GFVtb. V*ts Ci<μμK|Oi|B> 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 66/60

Rare decays: OPE Flavour changing neutral currents (FCNC) Probe V-A structure of SM In HQET expressed in terms of Wilson coefficients NP can appear as new operators, or with modified coefficients! e. g. W. Altmannshofer et al. , JHEP 0901: 019, 2009 § § effectively: 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 67/60

Rare decays: OPE Flavour changing neutral currents (FCNC) Probe V-A structure of SM In HQET expressed in terms of Wilson coefficients NP can appear as new operators, or with modified coefficients! B 0(s)→K*(φ)γ O 7γ In principle both leftand righthanded, O 7γ and O 7γ’ B 0→K*μμ O 7γ, O 9 V, O 10 A, OS, OP OS : Scalar current (Higgs) OP: Pseudo-scalar B 0 s→μμ e. g. W. Altmannshofer et al. , JHEP 0901: 019, 2009 § § O 10 A, OS, OP Highly suppressed in SM effectively: 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 68/60

Intermezzo 2: Allowed MSSM parameter space C Ge MS, C 5 nn 2: ai e 38 t 3 - al. 39 E 5, ur 20. P 07 hy s. J. Allowed parameter space from fit in constrained MSSM: constraints. These include precision electroweak data, the anomalous magnetic moment of the muon, § (g − 2)μ, B-physics observables (the rates for §BR(b → sγ) and §BR(Bu → τντ ), §Bs mixing, and the upper limit on §BR(Bs → μ+μ−)), § the bound on the lightest MSSM Higgs boson mass, Mh, and the cold dark matter (CDM) density inferred from § astrophysical and cosmological data, assuming that this is dominated by the relic density of the lightest neutralino, χh 2. shown are the 5 -σ discovery contours for observing the heavy MSSM Higgs bosons H, A in the three decay channels H, A → τ+τ− → 1) jets (solid line), 2) jet+μ (dashed line), 3) jet+e (dotted line) at the LHC. The discovery contours have been obtained using an analysis that assumed 30 or 60 fb− 1 collected with the CMS detector. O. Buchmueller et al. Eur. Phys. J. C 64: 391 -415, 2009 30 Nov 2011 Niels Tuning - View on Recent Results of LHCb - APPS 2011 69/60