vienna central european seminar particle physics and the lhc jeroen van tilburg

Vienna Seminar, Particle physics and the LHC, 26.11.11 Status and physics at LHCb, Jeroen van Tilburg 1/42

Vienna Central European SeminarVienna Central European SeminarParticle Physics and the LHCParticle Physics and the LHC

Jeroen van TilburgJeroen van TilburgPhysikalisches Institut HeidelbergPhysikalisches Institut Heidelberg

On behalf of the LHCb collaborationOn behalf of the LHCb collaboration

Status and physics at LHCbStatus and physics at LHCbStatus and physics at LHCbStatus and physics at LHCb

OutlineOutline• LHCb experiment and detector performanceLHCb experiment and detector performance• Selected physics resultsSelected physics results• Outlook and summaryOutlook and summary


New physics effects in New physics effects in BB and and DD decays decays

• New particles can appear as virtual particles in loop and penguin diagrams.• Indirect searches have a high sensitivity to effects from new particles.

• Can see NP effects before the direct searches.• Indirect measurements can access higher scales.

• Possible to measure the phases of the new couplings• New physics at TeV scale must have a flavour structure to provide suppression of FCNC.

bs

sb

b s

bs

b s

→ Complementary to direct searches.

→ Complementary to direct searches.

Strength of indirect approachStrength of indirect approachStrength of indirect approachStrength of indirect approach


CKM pictureCKM picture• Incredible success of CKM paradigm in last decades.• All measurements coherent with CKM of SM.

• Accuracy of angles determined by experiment• Accuracy of sides determined by theoretical uncertainties

• But, SM fails to explain matter-antimatter asymmetry in the Universe• New physics must hold additional sources of CP violation

• Effects are small but there is still room for NP effects.• Precision measurement of CKM elements.• Comparison between tree and penguin decays.• Not all CKM angles well constrained (e.g. γ and βs).

→ CP violation and rare decays of B hadronsand charm are the main focus of LHCb Large amounts of clean data available Precision tests: allow to look for small effects beyond SM

→ CP violation and rare decays of B hadronsand charm are the main focus of LHCb Large amounts of clean data available Precision tests: allow to look for small effects beyond SM

From CKMFitterFrom CKMFitterFrom CKMFitterFrom CKMFitter

015.0014.0

023.0026.0

343.0

144.0

Current fit results:


Tracking stationsVelo

RICH1+2

Muon

Calo

LHCb detectorLHCb detector

• Good vertex resolution• Time-dependent measurements.• Suppress background from prompt decays.

• Good particle identification • Important for trigger, flavour tagging • Suppress background.

• Good momentum resolution• Mass resolution of heavy flavours.• Suppress background.

• Good vertex resolution• Time-dependent measurements.• Suppress background from prompt decays.

• Good particle identification • Important for trigger, flavour tagging • Suppress background.

• Good momentum resolution• Mass resolution of heavy flavours.• Suppress background.

LHCb made for Heavy Flavour physicsLHCb made for Heavy Flavour physicsLHCb made for Heavy Flavour physicsLHCb made for Heavy Flavour physics


LHCb detectorLHCb detector

Angular coverage optimised for B-physics.

• High B hadron production at LHC • bb = 284 ± 53 b (√s = 7 TeV) [PLB 694 209]

• Forward spectrometer• Most B hadrons produced along beam axis.• Acceptance: 2 < η < 5. Complementary to GPD’s. • Vertex detector close to beam.• Easy access to planar subdetectors.

• High B hadron production at LHC • bb = 284 ± 53 b (√s = 7 TeV) [PLB 694 209]

• Forward spectrometer• Most B hadrons produced along beam axis.• Acceptance: 2 < η < 5. Complementary to GPD’s. • Vertex detector close to beam.• Easy access to planar subdetectors.

L~1 cm


CollaborationCollaboration

760 members760 members15 countries15 countries54 institutes54 institutes


Detector performance: LuminosityDetector performance: Luminosity

Luminosity leveling• LHCb already running above design lumi

• Average L~3×1032 cm−2s−1 (nominal 2×1032)• Need to cope with higher occupancies

• More pile-up: average ~1.5 (nominal 0.5)• Continuous, automatic adjustment of offset

of colliding beams.• Allows optimal conditions throughout a fill.

Luminosity leveling• LHCb already running above design lumi

• Average L~3×1032 cm−2s−1 (nominal 2×1032)• Need to cope with higher occupancies

• More pile-up: average ~1.5 (nominal 0.5)• Continuous, automatic adjustment of offset

of colliding beams.• Allows optimal conditions throughout a fill.

• LHCb recorded 1.1 fb−1 in 2011• Data taking ended on 30 Oct.• Only ~340 pb−1 used for most results

shown here.• Data taken with high efficiency ~90%• Offline data quality rejects < 1%• Sub-detectors all with > 98% active

channels.

• LHCb recorded 1.1 fb−1 in 2011• Data taking ended on 30 Oct.• Only ~340 pb−1 used for most results

shown here.• Data taken with high efficiency ~90%• Offline data quality rejects < 1%• Sub-detectors all with > 98% active

channels.


Detector performance: vertex resolutionDetector performance: vertex resolution

• VELO sensors only 8 mm from beam.• Impact parameter resolution = 12 mfor high pT tracks.• Good primary and secondary vertex resolution.

• Suppress background from prompt decays.

• Good proper-time resolution• Important for time-dependent measurements.

• VELO sensors only 8 mm from beam.• Impact parameter resolution = 12 mfor high pT tracks.• Good primary and secondary vertex resolution.

• Suppress background from prompt decays.

• Good proper-time resolution• Important for time-dependent measurements.

Sensors

RF foil

Beamaxis

8 mm

[LH

Cb-C

ON

F-2011-049]

Bs J/

Prompt J/

Resolution from prompt J/ψ: t = 50 fs

…in good agreement with simulation

…in good agreement with simulation

Primary vertex resolutionPrimary vertex resolutionPrimary vertex resolutionPrimary vertex resolution Decay time in Decay time in BBs s → J/→ J/ψψ Decay time in Decay time in BBs s → J/→ J/ψψ

VELO tomography with VELO tomography with hadronic verticeshadronic vertices

VELO tomography with VELO tomography with hadronic verticeshadronic vertices


Detector performance: PIDDetector performance: PID

• Particle ID with RICH detectors• Kaon ID efficiency ≈ 96%, • misID π→K ≈ 7%

• Particle ID with Muon detector• Muon ID efficiency 97.3±1.2% (p>4 GeV/c)• misID π→μ ≈ 2.4%, p→μ ≈ 0.18%

• Particle ID with RICH detectors• Kaon ID efficiency ≈ 96%, • misID π→K ≈ 7%

• Particle ID with Muon detector• Muon ID efficiency 97.3±1.2% (p>4 GeV/c)• misID π→μ ≈ 2.4%, p→μ ≈ 0.18% Flavour tagging

• Tagging of production flavour (B or B)• Important for mixing & CP analyses.• Performance calibrated using control channels such as B+ → J/ψ K+

• Tagging power: ε(1-2ω)2 = • (3.2 ± 0.8) % (opposite side)• (1.3 ± 0.4) % (same side)from Bs→Ds mixing analysispreliminary [LHCb-CONF-2011-049]

Flavour tagging• Tagging of production flavour (B or B)• Important for mixing & CP analyses.• Performance calibrated using control channels such as B+ → J/ψ K+

• Tagging power: ε(1-2ω)2 = • (3.2 ± 0.8) % (opposite side)• (1.3 ± 0.4) % (same side)from Bs→Ds mixing analysispreliminary [LHCb-CONF-2011-049]


Detector performance: mass resolutionDetector performance: mass resolution

• Integrated Bdl ~ 4 Tm• Accurate field map and alignment• Momentum resolution 0.4–0.6 %• Mass resolution J/: 13 MeV

• MC: 10 MeV→ Accurate mass measurements.

• Integrated Bdl ~ 4 Tm• Accurate field map and alignment• Momentum resolution 0.4–0.6 %• Mass resolution J/: 13 MeV

• MC: 10 MeV→ Accurate mass measurements.

Measured B masses [MeV/c2]

5279.50 ± 0.305279.50 ± 0.305366.30 ± 0.605620.2 ± 1.66277 ± 6

PDG

World-best mass measurements! (2010 data only)

Dimuon mass spectrumDimuon mass spectrumDimuon mass spectrumDimuon mass spectrum

LHCb-CONF-2011-027Preliminary

5279.17 ± 0.29


Selected physics resultsSelected physics results


Measurement of Measurement of ΔΔmmss[LHCb-CONF-2011-50]

)(0ss DB )( *0 KKDB ss

)(0 KKDB ss

• ∆ms: Bs-Bs mixing frequency using Bs→Ds• Flavour specific final state• High branching ratio (~0.3%)

• Important to resolve the fast Bs oscillations. • Average decay time resolution ~45 fs

• Event selection based on kaon ID, track IP and vertex χ2

• ∆ms extracted from unbinned ML fit to Bs→Ds candidates

• Uses mass, decay time and flavour tagging• Method includes now same side tagging (cf 2010 fit)

• ∆ms: Bs-Bs mixing frequency using Bs→Ds• Flavour specific final state• High branching ratio (~0.3%)

• Important to resolve the fast Bs oscillations. • Average decay time resolution ~45 fs

• Event selection based on kaon ID, track IP and vertex χ2

• ∆ms extracted from unbinned ML fit to Bs→Ds candidates

• Uses mass, decay time and flavour tagging• Method includes now same side tagging (cf 2010 fit)

Event yield in 340 pbEvent yield in 340 pb−−11Event yield in 340 pbEvent yield in 340 pb−−11


Measurement of Measurement of ΔΔmmss

Δms=17.725 ± 0.041(stat) ± 0.025 (sys) ps−1 Δms=17.725 ± 0.041(stat) ± 0.025 (sys) ps−1

BBss oscillations oscillationsBBss oscillations oscillations

Dominant systematics uncertainty: z-scale and momentum scale

Dominant systematics uncertainty: z-scale and momentum scale

Dilution of mixing amplitude from tagging and proper time

Most precise measurement of Most precise measurement of ΔΔmmssMost precise measurement of Most precise measurement of ΔΔmmss

[LHCb-CONF-2011-50]

Preliminary


Measurement of Measurement of ss from from BBss→→ J/ J/ /f/f00

s: interference phase between Bs mixing and b→ccs decay.

• Small penguin pollution.• Bs counterpart of Bd→ J/ K0.

• Small in SM: s = −0.036±0.002• Prediction from CKMfitter 2011• New particles in box diagrams can modify

measured phase s = sSM + s

NP

s: interference phase between Bs mixing and b→ccs decay.

• Small penguin pollution.• Bs counterpart of Bd→ J/ K0.

• Small in SM: s = −0.036±0.002• Prediction from CKMfitter 2011• New particles in box diagrams can modify

measured phase s = sSM + s

NP


Measurement of Measurement of ss

Narrow resonance (clean) Vector-vector final state (requires angular analysis)

CP odd final state (no angular analysis) BR about 20% of Bs→ J/

LHCb-CONF-051LHCb-CONF-049

→ First seen by LHCb last winter

Two decay modesTwo decay modesTwo decay modesTwo decay modes

Bs→ J/ Bs→ J/ Bs→ J/ f0(980)Bs→ J/ f0(980)



Bs→ J/ has vector-vector final state:• Mixture of CP-odd and CP-even decay amplitudes• Even and odd amplitudes can be disentangled using decay angles.

Angular analysis of Angular analysis of BBss→→ J/ J/ Angular analysis of Angular analysis of BBss→→ J/ J/

Transversity anglesTransversity anglesTransversity anglesTransversity angles

Decay amplitudes used in fit:

P wave

→ S wave(non resonant K+K-)




PDF of unbinned ML fit described as:

),,(),;(10

1,

k

ksssk fth

Complicated PDF: 3 independent implementations in LHCb

Complicated PDF: 3 independent implementations in LHCb




Main systematic errors from uncertainties in the description of angular and decay time acceptance and background angular distribution.

Time and angular distributionsTime and angular distributionsTime and angular distributionsTime and angular distributions



CL contours obtained using Γs from J/ψφ.

CP-odd final state, cannot determine Γs and ΔΓs simultaneously. When using both Γs and ΔΓs from Bs→J/ψφ:

s =-0.44±0.44(stat)±0.02(syst)

Two solutions: PDF insensitive to

Bs→ J/ Bs→ J/ Bs→ J/ f0(980)Bs→ J/ f0(980)

Result of the two fitsResult of the two fitsResult of the two fitsResult of the two fits



Next steps:• Resolve ambiguity by fitting S-wave phase in bins of M(KK)

• Y. Xie et al., JHEP 0909:074 (2009)

• Included more data (2.5 times more data recorded)• Include same-side tagging (~1.5x more tagging power)→ Expect ~2x smaller statistical error.

LHCb-CONF-2011-056

Combined fitCombined fitCombined fitCombined fit

s=-0.03 ± 0.16(stat) ± 0.07 (sys)s=-0.03 ± 0.16(stat) ± 0.07 (sys)

Comparison with TevatronComparison with TevatronComparison with TevatronComparison with Tevatron

Preliminary


Direct CP in Direct CP in BBd,sd,s→K→K

Tree-penguin interference in Bd,s→K decays allows to look for direct CP violation.

Tree-penguin interference in Bd,s→K decays allows to look for direct CP violation.

LHCb has a very good particle identification capability.• Isolate decays contributing to B->hh’ (K,,p)

Charmless charged two-body Charmless charged two-body BB decays decaysCharmless charged two-body Charmless charged two-body BB decays decays

Tree Penguin



B0 → K B0 → K

BBd,sd,s →→ : Clear asymmetry in raw distributions: Clear asymmetry in raw distributionsBBd,sd,s →→ : Clear asymmetry in raw distributions: Clear asymmetry in raw distributions

Bs → K Bs → K

[LH

Cb-C

ON

F-2011-042]



Raw asymmetry has to be corrected for detector and production asymmetry.

AAAAAA CPCP proddetRAW

Detector asymmetry→ measured using charm control samples: D*+→D0(K)+, D*+→D0(KK)+ and D0→K.

Production asymmetry• κ: dilution of Aprod due to B mixing,

lifetime and acceptance κ(B0)~0.3, κ(Bs)~-0.03

• Aprod measured using B0→J/ K*(K)

)%2.00.1()(

)%6.07.0()(0

0

KBA

KBA

s

Interaction asymmetry

L/R detector asymmetry

)%3.10.1()( 0prod BA

Final correction factors:

[LH

Cb-C

ON

F-2011-042]



008.0011.0088.0)( 0 KBACP

→ Most precise, and first 5 observation of CP violation in hadronic machine.

02.008.027.0)( KBA sCP → first 3 evidence of CP violation in Bs

0→πK

Eventual goal to measure time-dependent asymmetries in e.g. B(s) →+-, K+K-

→ determine CKM angle γ from loop decays

Compare to γ measurements from tree decays, e.g. • B+/0→D0K+/*: ADS+GLW and Dalitz method.• Bs→DsK: Time-dependent, tagged analysis.

→ determine any contribution from new physics

→ First observation of Bs→

Also measured BRs for CP eigenmodes Also measured BRs for CP eigenmodes Also measured BRs for CP eigenmodes Also measured BRs for CP eigenmodes

Preliminary[LHCb-CONF-2011-042]AACPCP for K for K modes modesAACPCP for K for K modes modes

012.0011.0098.0

WA:


Search for Search for BBd,s d,s ++−−

• Very rare decay (FCNC and helicity suppressed) BR(Bs +−)SM = (3.2 ± 0.2)x10−9

BR(Bd +−)SM = (1.1 ± 0.1)x10−10

• Sensitive to New Physics:• E.g. branching ratio in MSSM enhanced by sixth power of tan:

4

6

,

tan~)BR(

Asd M

B

A.J.Buras, arXiv:1012.1447

[EPJ C64 391]

Exclusion regions in MSSM (NUHM)Exclusion regions in MSSM (NUHM)

Recent excitement from CDF measurement:BR(Bs +−) = (1.8 )x10−8 (7 fb-1) arXiv:1107.2304

+1.1−0.9

The decay The decay BBd,s d,s →→ ++− − provides provides

sensitive probe for New Physics.sensitive probe for New Physics.

The decay The decay BBd,s d,s →→ ++− − provides provides

sensitive probe for New Physics.sensitive probe for New Physics.

Blue: Allowed regions for given BR measurement



• Loose selection to reduce data set• Evaluate signal/background in a 2D-space of

• Invariant mass m

• MVA classifier BDT combining kinematic and geometrical variables

• Data driven calibration through control channels and mass sidebands

• Normalize to channels with known BR

• Loose selection to reduce data set• Evaluate signal/background in a 2D-space of

• Invariant mass m

• MVA classifier BDT combining kinematic and geometrical variables

• Data driven calibration through control channels and mass sidebands

• Normalize to channels with known BR

Selection & analysis strategySelection & analysis strategy


Search for Search for BBd,s d,s ++−−[L

HC

b-CO

NF

-2011-037]

MMfor signal region in 4 bins of BDTfor signal region in 4 bins of BDTMMfor signal region in 4 bins of BDTfor signal region in 4 bins of BDT

• Mass distribution studied in 4 bins of BDT• Expect ~ 1 event in each bin from SM.• Main background from bb→X and misidentified B→h+h−

• Mass distribution studied in 4 bins of BDT• Expect ~ 1 event in each bin from SM.• Main background from bb→X and misidentified B→h+h−

Small excess (2 events) in most sensitive bin, compatible with SM.

Expected mass resolution obtained from interpolation of dimuon resonances (from J/ to ’s)→ Verified with B → hh events


0

0

0

calcal

cal

sig

calcal

0 BR)BR(q

q

q

B

B

B

q NN

N

f

fB


The final branching ratio can be calculated as:NormalizationNormalization

Production ratio fs/fd taken from LHCb’s measurements using semileptonic and hadronic decays.→ Smaller error than HFAG average.→ Dominant systematic error.

LHC

b-C

ON

F-034

KB

KKJB

KJB

s

0

)()(/

)(/

Three complementary normalization channels with very different systematics:

Values for α very compatible



• No significant excess observed in 0.3 fb-1

• Upper limits (preliminary):• BR(Bs +−) < 1.5 x 10−8 (95% CL)• BR(Bd +−) < 5.2 x 10−9 (95% CL)

• CMS also set a limit this Summer with 1.1 fb-1

• BR(Bs +−) < 1.9 x 10−8 (95% CL) arXiv:1107.5834

• LHCb + CMS analyses combined (preliminary)• BR(Bs +−) < 1.1 x 10−8 (95% CL)

• This is ~ 3.4 × SM value• Most probable value ~ 4 × 10-9

• Excess over SM not confirmed.

LHC

b-C

ON

F-2011-047

arXiv:110

8.3018

Future prospectsFuture prospects

[LHCb-CONF-2011-037]


• Bd +−K* rare decay in the SM.• BR (Bd l+l−K*) ~ 1.0 x 10−6

• SM diagrams can be easily modified in presence of NP• Angular distributions contain a lot of information.

• Many observables probe helicity structure of NP• Zero crossing point of AFB(q2) well predicted

in SM• Hadronic uncertainties are minimized• Measures ratio Wilson coefficients C9/C7.

• Sensitive to SUSY, graviton exchanges, extra dimensions…

Angular distributions in Angular distributions in BBd d ++−−KK**

Flipping the b→s diagram…Flipping the b→s diagram…



Results from CDF & B-factories show intriguing behaviour at low q2 :→ however, precision is limited.

SMC7=-C7

SM

[arXiv:1101.0470]



J/ veto

(2S) veto

Bd mass window

302 signal events

Event selectionEvent selection [LH

Cb-C

ON

F-2011-038]

• 309 pb-1 in 2011• 302 signal candidates• B/S ~ 0.3

Selection using BDT• BDT variables chosen to

minimize acceptance effects• Angular acceptance from MC• Trained on Bd J/ K* for signal

and mass sidebands for background

Selection using BDT• BDT variables chosen to

minimize acceptance effects• Angular acceptance from MC• Trained on Bd J/ K* for signal

and mass sidebands for background



Angular fitAngular fit

Not enough data yet to perform full angular analysis.→ Measure in 6 q2 bins:

• AFB

• Longitudinal polarisation, FL

• Differential branching fraction dГ/dq2

→ Fit AFB and FL using the 1D projections of θl and θK

Used Bd J/ K* to validate fitting procedure and angular acceptance

Used Bd J/ K* to validate fitting procedure and angular acceptance



LHCb-CONF-2011-038

In bin LHCb Theory



Next steps• Determine zero-crossing point in AFB(q2)• Add phi angle and AT

(2)

• Include full 2011 data set.• With > 2 fb-1 do full angular analysis

Next steps• Determine zero-crossing point in AFB(q2)• Add phi angle and AT

(2)

• Include full 2011 data set.• With > 2 fb-1 do full angular analysis

Data consistent with SM predictions at present sensitivity and indicate that AData consistent with SM predictions at present sensitivity and indicate that AFBFB is is

changing sign as predicted by the SMchanging sign as predicted by the SM(most recent CDF result also has negative first bin: arXiv:1108.0695)(most recent CDF result also has negative first bin: arXiv:1108.0695)

Data consistent with SM predictions at present sensitivity and indicate that AData consistent with SM predictions at present sensitivity and indicate that AFBFB is is

changing sign as predicted by the SMchanging sign as predicted by the SM(most recent CDF result also has negative first bin: arXiv:1108.0695)(most recent CDF result also has negative first bin: arXiv:1108.0695)

Already effective in constraining NP arXiv:1111.1257


Charm physicsCharm physics

• Dedicated trigger lines for charm decays• Yield of O(108) events per fb−1

• Flavour tag from charge of slow pion.• Large statistics available

• > 106 D0 K+K from D*+ D0 +

Many opportunities for charm physics at LHCbMany opportunities for charm physics at LHCbMany opportunities for charm physics at LHCbMany opportunities for charm physics at LHCb


D0 K+K

Mixing established in the charm sector.Mixing established in the charm sector.Next step: look for CP violationNext step: look for CP violation

Mixing established in the charm sector.Mixing established in the charm sector.Next step: look for CP violationNext step: look for CP violation

• No mixing excluded at 10.2• Presence of mixing allows to search for indirect CPV• CP violation expected to be very small in SM• Good place to look for new physics effects. HFAG averages

x=(0.63±0.19)%y=(0.75±0.12)%



AAГГ in in DD00→→KK++KK-- (CPV in mixing) (CPV in mixing)AAГГ in in DD00→→KK++KK-- (CPV in mixing) (CPV in mixing)

ind

00

00

)(ˆ)(ˆ)(ˆ)(ˆ

CPaKKDKKD

KKDKKDA


Measurement (2010 only; 28 pb-1):

yyCPCP in in DD00→→KK++KK-- (CPV in mixing) (CPV in mixing)yyCPCP in in DD00→→KK++KK-- (CPV in mixing) (CPV in mixing)

LHCb is currently updating with more statisticsLHCb is currently updating with more statistics

sin2

cos 1)(ˆ)(ˆ

0

0m

CP

Axy

KD

KKDy

Combined with measurement of y gives access to CPV.Measurement (2010 only; 28 pb-1):




ΔΔAACPCP in in DD00→→hh++hh-- (CPV in decay) (CPV in decay)ΔΔAACPCP in in DD00→→hh++hh-- (CPV in decay) (CPV in decay)

inddir 1.0)()( CPCPCPCPCP aaAKKAA

Production and detector asymmetry cancel.Measurement (2011 only; 580 pb-1):


New result!Only presented last week at HCP

Signifance 3.5

First evidence of CP violation in charm sector!

First evidence of CP violation in charm sector!

1.4 M events

0.4 M events

PreliminaryPreliminary

Preliminary


LHCb UpgradeLHCb Upgrade

• Main limitation that prevents exploiting higher luminosity is the Level-0 (hardware) trigger

• To keep output rate < 1 MHz requires raising thresholds hadronic yields reach plateau

• Proposed upgrade is to remove hardware trigger read out detector at 40 MHz (bunch crossing rate)Trigger fully in software in CPU farm.

• Will allow to increase luminosity by factor ~ 5 to 1–2 × 1033 cm-2 s-1

• Requires replacing front-end electronicsand part of tracking system. Planned for the long shutdown in 2018. Running for 10 years will then give ~ 50 fb-1

• Letter of Intent recently submitted to the LHCCPhysics case endorsed, detector R&D underway (e.g. scintillating-fibre tracking, TOF, …)


LHCb UpgradeLHCb Upgrade

LH

Cb

Up

gra

de

Lo

I: CE

RN

-LH

CC

-20

11

-00

1

Integrated luminosity of order 50 fbIntegrated luminosity of order 50 fb-1-1 allows to allows to measure NP effects below the % level.measure NP effects below the % level.

Integrated luminosity of order 50 fbIntegrated luminosity of order 50 fb-1-1 allows to allows to measure NP effects below the % level.measure NP effects below the % level.


ConclusionConclusion

No time to mention:• Bs and other radiative B decays.• Semileptonic B decays• Electroweak physics.• Higgs and exotica.• LFV tau decays• And much, much more…

No time to mention:• Bs and other radiative B decays.• Semileptonic B decays• Electroweak physics.• Higgs and exotica.• LFV tau decays• And much, much more…

• LHCb will have huge contribution to flavour physics in the years to come.

• LHCb will perform the precision measurements needed to see effects from new physics.

• The future will bring an even better understanding of our detector and much more statistics!

• Hope to see first hints from new physics soon.• Expect more interesting results this Winter.

• LHCb will have huge contribution to flavour physics in the years to come.

• LHCb will perform the precision measurements needed to see effects from new physics.

• The future will bring an even better understanding of our detector and much more statistics!

• Hope to see first hints from new physics soon.• Expect more interesting results this Winter.

vienna central european seminar particle physics and the lhc jeroen van tilburg

Documents

summarynew physics effects

new couplings new physics

universe new physics

secondary vertex resolution

small effects

np effects

prompt decays

ckm of