Update on BABAR Physics and Prospects David B. MacFarlane P5 Visit to SLAC April 21, 2006
Download ReportTranscript Update on BABAR Physics and Prospects David B. MacFarlane P5 Visit to SLAC April 21, 2006
Update on BABAR Physics and Prospects David B. MacFarlane P5 Visit to SLAC April 21, 2006 Pillars of BABAR physics program Highly constrained and redundant set of precision tests of weak interactions in the Standard Model o Full program of flavor physics/CP violation measurements will provide a legacy of fundamental constraints on future New Physics discoveries Searches for physics beyond the Standard Model in a well understood & characterized environment o Sensitivity to New Physics at LHC mass scales through rare decays and CP violation o Discovery potential from large data sample across a whole range of beauty, charm, tau, two-photon, ISR physics Challenging measurements at the edge of sensitivity benefit enormously from operation of both PEP-II & KEK B Factories April 21, 2006 Update on BABAR Physics and Prospects 2 Integrated data sample to date Project Run 5 at 405 fb-1 delivered April 21, 2006 Update on BABAR Physics and Prospects 3 BABAR & Belle physics results Journal Papers BABAR Belle Total [Today] 204 167 225 +28 papers since last P-5 visit 200 175 150 125 Belle 100 BaBar 75 50 25 Update on BABAR Physics and Prospects Jan-06 Jul-05 Jan-05 Jul-04 Jan-04 Jul-03 Jan-03 Jul-02 Jan-02 April 21, 2006 Jul-01 Jan-01 0 4 Weak Interaction in Standard Model Vud V Vcd Vtd Unitarity Triangle as a summary of Standard Model b physics * * * U nitarity: VudVub VcdVcb VtdVtb 0 Vus Vcs Vts Vub Vcb Vtb + phases A pex at , 0 (b u ) 2 April 21, 2006 R a d ia tive p e n g uin d e c a ys CP violation 3 0, 0 0 BS - BS m ix ing 0 B -B 0 m ix ing 1 B and ( b c ) Update on BABAR Physics and Prospects 1, 0 5 Evolution of sin2 measurements Present WA Present CKM fit BABAR 0.722±0.040±0.023 *Belle 0.652±0.039±0.020 *unpublished April 21, 2006 Update on BABAR Physics and Prospects 6 Projected uncertainties on sin2 Compare: mb known to <1% Systematic errors Statistical errors Current Projected (109) April 21, 2006 Update on BABAR Physics and Prospects 7 Summary of constraints on Mirror solutions disfavored F ro m c o m b in e d , , re sults: 15 10 0 9 o C K M in d ire ct co n strain t 5 f it: 9 7 16 April 21, 2006 o Update on BABAR Physics and Prospects 8 Summary of constraints on Interference: b c w ith b u Ratio rB of allowed to suppressed is critical ADS B D (*) 0 DC P K B D (*) 0 DD CS D K GLW B F ro m c o m b in e d a n a lysis: I n d ire ct co n stra in t: 35 6 2 2 5 5 60 4 April 21, 2006 o o D (*) 0 DC P K GGSZ B D Update on BABAR Physics and Prospects (* ) 0 0 K S K 9 New results for B0 → D(*)0K(*)0 hep-ex/0604016 B 0 0 0 D KS B 0 *0 0 D KS First evidence Measure r in self-tagging final state D0K*0 rB B 0 0 D K *0 B 0 0 D K A (B 0 D K 0 *0 ) A (B 0 D K 0 *0 ) *0 New! No Vub, rB less than expected! Vcb transition April 21, 2006 Vub transition Update on BABAR Physics and Prospects rB 0 .4 0 @ 9 0 % C L 10 Projected uncertainty on Based on original modes, but we are still hunting for more! rB = 0.1 Projected sys error due to D0 Dalitz plot April 21, 2006 Update on BABAR Physics and Prospects 11 Global CKM fit: 2006 95% contours Includes CDF measurement of Dms April 21, 2006 Update on BABAR Physics and Prospects 12 CPV in Penguin Modes , 2 (b u ) 3 0, 0 List of channels continues to expand… B ( , , , f 0 , , , K K , K S K S ) K 0 0 0 0 0 0 0 0 B -B m ix in g CPV in B 1 B a n d ( b c ) 1, 0 0 0 0 s s W b B 0 K S , K S , g u , c ,t Interference of suppressed b s Penguin decay with mixing 0 Update on BABAR Physics and Prospects d 0 d b B s K d d April 21, 2006 0 W t t W b B 0 13 New: sin2eff in B → KS First Measurement! Challenges: o Overlap of f01280 and , BB & non-resonant backgrounds o Possible color-suppressed tree B0 New! B0 o Update in wKS o Search for B → KSKSKL o Many BF and ACP measurements in New! related modes control hadronic uncertainties in b → s penguins April 21, 2006 Asymmetry Related New Results from BABAR: Update on BABAR Physics and Prospects 14 Summary of sin(2) in Penguins Naïve2 Average: 0.50 ± 0.06 (2.8s) Representative theory estimates KS Dsin2 Example from recent calculations (QCD factorization) 2-body: [Beneke; PL B620, 143 (2005)] 3-body: [Cheng,Chua,Soni; PRD72, 094003 (2005)] April 21, 2006 Update on BABAR Physics and Prospects 15 Integrated Luminosity [fb-1] Projected data sample growth 1200 Double again from 20 2006 to 2008 ICHEP08 1000 800 o PEP-II: IR-2 vacuum, 2xrf stations, BPM work, feedback systems o BABAR: LST installation 17 600 Double from 2004 to 2006 400 12 ICHEP06 Lpeak = 9x1033 4-month down for LCLS, PEP-II & BABAR 200 April 21, 2006 Jul-08 Jul-07 Jul-06 Jul-05 Jul-04 Jul-03 Jul-02 Jul-01 Jul-00 Jul-99 0 Update on BABAR Physics and Prospects 16 Integrated Luminosity [fb-1] Projected data sample growth 1200 20 1000 Sep 05 plan Feb 06 plan 800 17 600 12 400 Lpeak = 9x1033 200 April 21, 2006 Jul-08 Jul-07 Jul-06 Jul-05 Jul-04 Jul-03 Jul-02 Jul-01 Jul-00 Jul-99 0 Update on BABAR Physics and Prospects 17 Integrated Luminosity [fb-1] How does this compare with KEKB? 1600 KEKB from Oide 1400 KEKB no crab effect (30 fb-1/month) Sep 05 plan Feb 06 plan 1200 1000 800 600 400 200 April 21, 2006 Jul-08 Jul-07 Jul-06 Jul-05 Jul-04 Jul-03 Jul-02 Jul-01 Jul-00 Jul-99 0 Update on BABAR Physics and Prospects 18 Updated performance comparison Revised from 2005 results; conclusions unchanged from 2004 study S Belle BABAR stat err lumi Mode S phiK0 0.440 0.270 357 etapK0 0.620 0.120 357 KKK0 0.600 0.180 357 KSKSKS 0.580 0.360 357 f0K0 0.470 0.360 357 pi0K0 0.220 0.470 357 ccbarK0 0.652 0.039 357 pipi -0.670 0.160 253 rhopi S -0.280 0.230 140 rhopi A+-0.020 0.160 140 rhopi A-+ -0.530 0.290 140 rhorho 0.090 0.420 253 Averages Errors/Luminosity Belle BABAR Untag Untag Perf Lumi sample S stat err lumi sample st*sqrt(L) st*sqrt(L) Ratio Ratio 258 0.500 0.250 205 212 5.101 3.579 1.425 2.031 1017 0.270 0.140 205 819 2.267 2.004 1.131 1.279 536 0.550 0.170 205 452 3.401 2.434 1.397 1.952 105 0.630 0.320 205 129 6.802 4.582 1.485 2.204 145 0.950 0.320 192 152 6.802 4.434 1.534 2.353 344 0.350 0.300 205 300 8.880 4.295 2.067 4.274 5264 0.722 0.040 205 10320 0.737 0.573 1.287 1.655 666 -0.300 0.170 205 467 2.545 2.434 1.046 1.093 483 -0.100 0.140 192 1184 2.721 1.940 1.403 1.968 483 -0.210 0.110 192 1184 1.893 1.524 1.242 1.543 483 -0.470 0.140 192 1184 3.431 1.940 1.769 3.129 142 -0.330 0.240 205 617 6.681 3.436 1.944 3.780 1.477 2.272 Typically better errors for BABAR despite larger Belle dataset April 21, 2006 Update on BABAR Physics and Prospects Normalized performance ratio 19 BABAR CKM physics goals Physics Impact Precision measurement of sin2 Fundamental constant of the SM, whose precision is only limited by statistics Improve error by factor of two to 2% Precision measurement of CP asymmetry in b sqq penguin modes Primary approach to new physics Potentially in loop decays; b sss presently reach the 4-5s discrepant with SM predictions at level for 2.4s level when averaged over average of all b sss modes all available modes Could reach the 4-5s level for individual theoreticallyclean modes Precision measurement of unitarity angle Fundamental constraint on the UT Precision measurement of unitarity angle Fundamental tree-level constraint on phases and amplitudes originating from any new physics beyond the SM Pioneering measurements with 10-15o accuracy Determine to 5-10o precision Precision measurement of V ub with inclusive & exclusive semileptonc B meson decays Fundamental tree-level constraint on amplitudes and phases originating from any new physics beyond the SM Inclusive decays reach 6.5% precision Exclusive decays reach 8% precision April 21, 2006 FY2006 450 fb-1 FY2007 650 fb-1 Discovery of 0 0 0 B if it has SM branching fraction Update on BABAR Physics and Prospects FY2008 1000 fb-1 Isospin analysis in B allows better than 10o measurement 20 Projections of sin2 from Penguin modes 0.40 Luminosity expectations : K* 0.30 0.25 s (S ) 0 .2 0 2004=240 fb-1 2008=1.0 ab-1 0.20 f0KS KS0 jKS ’KS KKKS 0.15 0.10 Jul-09 Jan-09 2008 Jul-08 Jan-08 Jul-07 Jan-07 Jul-06 Jan-06 Jul-05 2004 Jul-04 Jan-04 Jul-03 0.00 Jan-05 0.05 Jan-03 Error on sine amplitude 0.35 Projections are statistical errors only; however systematic errors at few percent level April 21, 2006 Update on BABAR Physics and Prospects 21 UT constraints in 2008 now 95% contours 2008 s (V ub ) 8% s (V u b ) 6 .5 % Assumption: no NP in trees [almost any NP model] Significant constraint on all New Physics models in LHC era April 21, 2006 Update on BABAR Physics and Prospects 22 Bounds on new physics Introduce new physics in mixing diagram D MBd C Bd AC P J / K S 0 D MBd now SM sin 2 Mass scale being probed for unit coupling: Bd 2008 L(now) ~ 5 TeV L(2008) ~ 10TeV Model independent April 21, 2006 Update on BABAR Physics and Prospects 23 New: T/CP/CPT Violation in B0 mixing Asymmetry in same-sign data: Asymmetry in opposite-sign data: hep-ex/0603053 40% reduction in s(q/p) q / p 1 . 0008 0 . 0027 ( stat ) 0 . 0019 ( syst ) Im( z ) 0 . 0139 0 . 0073 ( stat ) 0 . 0032 ( syst ) New! D x Re( z ) 0 . 0071 0 . 0039 ( stat ) 0 . 0020 ( syst ) Constraints on New Physics from |q/p| April 21, 2006 NP ? 80% reduction in s(Im(z)) First Measurement! after before SM Update on BABAR Physics and Prospects SM 24 BABAR rare decay physics goals Physics Impact FY2006 450 fb-1 FY2007 650 fb-1 FY2008 1000 fb-1 Discovery of Provides a determination of V ub and constrains Higgs sector in MSSM and NP in a parameter regime that is complementary to LHC Limit First hints Discovery if it has SM branching fraction Ultimate precision on photon energy spectrum Strong constraints from 5% error on BF; 1-2% error on CP asymmetry B New Belle result Precision determination of b s branching fraction, CP asymmetry, and photon energy spectrum Loop diagram that provides unique insight into B meson structure and constrains Higgs sector in MSSM and NP in a parameter regime that is complementary to LHC Precision determination of b s branching fractions, CP and FB asymmetries Contributions from Z-penguin and W-exchange loops that give additional constraints on MSSM and NP in a parameter regime that is complementary to LHC Useful precision for constraints on NP Discovery of B Provides a unique determination of CKM matrix elements V td / V ts ; likely before 0 0 B S - B S mixing discovery First hints April 21, 2006 Update on BABAR Physics and Prospects Strong constraint for NP from BF, CP and FB asymmetries Discovery if it has SM branching fraction Precise measurement of BF 25 Developments in B (10-4) Belle at FPCP (400 fb-1) Winter ‘06 BABAR 90% limit 5s (200/81 fb-1) SM prediction moved up ~30% due to Vub, Bs mixing Example where Belle analysis is better than BABAR Current analysis sBelle=sBaBar*0.7 Under investigation, but likely recoverable April 21, 2006 Update on BABAR Physics and Prospects 26 New: angular analysis in BK(*)ll K* polarization FL hep-ex/0604007 K* polarization consistent Preliminary with Standard Model Possible to exclude C7 = -C7(SM) with 1 ab-1 SM C7 = -C7(SM) Forward-backward asymmetry AFB vs q2 SM Low q2 limit excludes SM at 98% CL (2.1s) AF B 0 .19 (9 5 % C L ) AF B (S M ) 0 .0 3 April 21, 2006 New! SM wrong-sign C9C10 excluded at >3s C9C10 = -C9C10(SM) Preliminary Update on BABAR Physics and Prospects 27 BABAR Physics Goals Physics Impact FY2006 450 fb-1 0 0 Search for D - D mixing Highly suppressed in the SM and therefore an ideal place to search for new physics in charm mixing diagram Hint if 1% mixing amplitude Search for lepton-flavor violation in or other tau decays Expected to be significantly enhanced in many extensions of the SM accommodating neutrino mass, but extremely small in the SM itself New discovery in heavy hadron spectroscopy Improved understanding of QCD in non-perturbative regime April 21, 2006 FY2007 650 fb-1 FY2008 1000 fb-1 Discovery if 1% mixing amplitude Limits reach 2x10-8 sensitivity Discoveries possible anytime Update on BABAR Physics and Prospects Discoveries possible anytime Discoveries possible anytime 28 New: search for D mixing in K0 SM predicts small effect: x,y < 10-5 Search for New Physics: CP violation in the D system Result consistent with no mixing @ 4.5% x2 m 2 m1 2 1 0 0 (D K ) 0 R ,y 2 1 2 1 (D K ) 0 ( 0 . 214 0 . 008 0 . 008 )% Smaller DCS relative to K Allowing for CP violation New! April 21, 2006 Update on BABAR Physics and Prospects 29 Summary: Physics reach of BABAR Goal for 2005-2006: double current data set o o Delay in Run 5 can be overcome by summer 2006 with extended running period, with substantial reduction in errors on CP violation asymmetries in rare decay modes Error on average of Penguin modes should reach 0.06 Goal for 2007-2008: double again to ~1 ab-1 o o Individual Penguin modes with errors in range 0.06-0.12 Suite of fundamental Standard Model measurements with substantially improved levels of precision o Sensitivity to New Physics through rare decays, CP violation, & large data sample with a significant discovery potential o Full program of flavor physics/CP violation measurements provide fundamental constraints on future New Physics discoveries Program will continue to be exciting and competitive through at least 2008 April 21, 2006 Update on BABAR Physics and Prospects 30 Future opportunities in B physics Terminating PEP-II/BABAR in 2008 is premature o o o Many important physics goals are on the edge of sensitivity; a further doubling beyond 2008 would be feasible & welcome If there is new physics in Penguin modes then more data will almost certainly allow us to contribute to unraveling its nature Belle has shown that a BS0 program on the (5 S ) is feasible; running on (5 S ) would be important & complementary to LHCb Ideas for Super B Factories are vigorously pursued o o o Physics case based on sensitivity to new physics in beauty, charm and tau sectors Super KEKB is a mature proposal to upgrade KEKB to 4x1035 INFN is sponsoring a design study based on adopting linear collider ideas to a new very high luminosity facility (1x1036) Interest in flavor physics at BABAR and beyond present B Factory programs remains strong April 21, 2006 Update on BABAR Physics and Prospects 31 Backup Slides USA [38/311] INFN, INFN, INFN, INFN, The BABAR Collaboration California Institute of Technology UC, Irvine UC, Los Angeles UC, Riverside UC, San Diego UC, Santa Barbara UC, Santa Cruz U of Cincinnati U of Colorado Stanford U Colorado State U of Tennessee Harvard U U of Texas at Austin U of Iowa U of Texas at Dallas Iowa State U Vanderbilt LBNL U of Wisconsin LLNL Yale U of Louisville U of Maryland [4/24] U of Massachusetts, Amherst Canada MIT U of British Columbia U of Mississippi McGill U Mount Holyoke College U de Montréal SUNY, Albany U of Victoria U of Notre Dame Ohio State U China [1/5] U of Oregon Inst. of High Energy Physics, Beijing U of Pennsylvania Prairie View A&M U France [5/53] Princeton U LAPP, Annecy SLAC LAL Orsay U of South Carolina 11 Countries 80 Institutions 623 Physicists April 21, 2006 The Netherlands [1/4] NIKHEF, Amsterdam Norway [5/24] Ruhr U Bochum U Dortmund Technische U Dresden U Heidelberg U Rostock Italy [1/3] U of Bergen LPNHE des Universités Paris VI et VII Ecole Polytechnique, Laboratoire Leprince-Ringuet CEA, DAPNIA, CE-Saclay Germany Perugia & Univ Roma & Univ "La Sapienza" Torino & Univ Trieste & Univ [12/99] INFN, Bari INFN, Ferrara Lab. Nazionali di Frascati dell' INFN INFN, Genova & Univ INFN, Milano & Univ INFN, Napoli & Univ INFN, Padova & Univ INFN, Pisa & Univ & Scuola Normale Superiore Update on BABAR Physics and Prospects Russia [1/13] Spain [2/3] Budker Institute, Novosibirsk IFAE-Barcelona IFIC-Valencia United Kingdom [11/75] U of Birmingham U of Bristol Brunel U U of Edinburgh U of Liverpool Imperial College Queen Mary , U of London U of London, Royal Holloway U of Manchester Rutherford Appleton Laboratory U of Warwick 33 Evolution of S measurements Gradual convergence of asymmetry measurement Interpretation difficult due to large penguin amplitudes: o eff 3 5 BABAR 0.30 0.17 0.03 Belle 0.67 0.16 0.06 April 21, 2006 Update on BABAR Physics and Prospects 34 Projected uncertainties on New measurement of 0: 230 M(BB) New! +1s Current Br(00) -1s April 21, 2006 Projections depend on size of isospin corrections Update on BABAR Physics and Prospects 35 Exploring other channels Looking for b → u in Ds(*)a0(2) No sign of b → u signal, rB smaller than expected! New! Phys. Rev. Lett. 96, 011803,2006 hep-ex/0501105 B D K 0 0 B D K 0 0 New! No sign of b → u signal, rB smaller than expected! April 21, 2006 B D K (892 ) 0 0 *0 Update on BABAR Physics and Prospects B D ( 2460 ) K 0 * 36 UT from sin2 & indirect constraints Overconstrained: growing set of independent measurements are consistent with CKM picture Paradigm change! April 21, 2006 Now: looking for New Physics as correction to CKM Update on BABAR Physics and Prospects 37 UT from CP violation measurements alone New B Factory milestone: Comparable UT precision from CPV in B decays alone Overconstrained: subsets of measurements can be used to test for new physics April 21, 2006 Update on BABAR Physics and Prospects 38 Global CKM fit: 2008 s (V u b ) 6 .5 % April 21, 2006 s (Dm s ) 5% 95% contours s (sin 2 ) 0.019 s ( ) 8 s ( ) 10 Update on BABAR Physics and Prospects o o 39 Potential New Physics contributions B 0 K 0 W New physics in loops? u , c ,t b B g 0 d b s s s d 0 KS B B s d b 0 KS B s s 0 s d April 21, 2006 d 0 KS SUSY contribution with new phases 0 0 s 0 “Internal Penguin” B 0 K s Update on BABAR Physics and Prospects d 0 KS 40 For each m ode com pare S f w ith S f exp S ( X cc ) D Sf Ns Possible evolution of measurements Average A ve ra g e : c o m p a re w f (S f S f exp ) w ith 0 wf ex wf s f BaBar+Belle today th BaBar or Belle 2008 0 K sf Assume measurements will fluctuate around current world average central values April 21, 2006 K 0 BaBar & Belle 2008 Update on BABAR Physics and Prospects L(fb-1) 41 Snapshot II: Fall 2010? Present SM uncertainty “1 sigma” NP in Z-Penguins B 0 0 XKS SM + various New Physics NP in gluonic-Penguins NP in chromomagnetic operator Projected errors SB XK 0 S April 21, 2006 Buchalla, Hiller, Nir, Raz hep-ph/0503151 Update on BABAR Physics and Prospects 42 CPV in charmonium modes , 2 (b u ) 3 0, 0 0 0 B -B m ix in g 1 B a n d ( b c ) 0 CPV in B 1, 0 c J / c b B W 0 Interference of b c tree decay with mixing s d d Update on BABAR Physics and Prospects 0 d K 0 d b B April 21, 2006 0 J / KS W t t W b B 0 43 CPV in charmless modes , 2 (b u ) 0 C PV in B , , , 0 3 0, 0 3rd component: sizable Penguin diagram 1 B a n d ( b c ) 0 B -B m ix in g 1, 0 Interference of suppressed b u tree decay with mixing B 0 d u g u , c ,t u d d u W B B April 21, 2006 W b 0 b d u d d b d 0 Update on BABAR Physics and Prospects d W t t W b B 0 44 Remarkably good progress on gamma! Effect depends on ratio of two diagrams , 2 (b u ) u 0 3 0, 0 1 B a n d ( b c ) : C PV in B 0 B -B m ix in g 1, 0 B B K (*) D (*)0 b s c u u b u (*)0 cD W s K u u DC P K , DD C S K , Interference of color-allowed and color-suppressed tree decays April 21, 2006 W 0 (*) D (D ) d e ca y to co m m o n f in a l sta te DC P , DD C S , D Update on BABAR Physics and Prospects 0 0 KS 45 BABAR publications since last P5 visit 1) A study of the DsJ*(2317)+ and DsJ(2460)+ mesons in inclusive c cbar production near sqrt(s) = 10.6 GeV 2) Study of the decay anti-B0 -> D*+ omega pi3) Observation of a Charmed Baryon Decaying to D0p at a Mass Near 2.94 GeV/c2 4) Measurements of CP-Violating Asymmetries and Branching Fractions in B Decays to omega K and omega pi 5) Measurements of branching fractions, rate asymmetries, and angular distributions in the rare decays B -> K l+l- and B -> K* l+l6) Measurement of branching fractions and CP-violating charge asymmetries for B meson decays to D(*) anti-D(*), and implications for the CKM angle gamma 7) Measurement of Branching Fractions in Radiative B Decays to eta K gamma and Search for B Decays to eta' K gamma 8) Search for T, CP and CPT Violation in B0-anti-B0 Mixing with Inclusive Dilepton Events 9) Search for the decay tau- -> 3pi- 2pi+ 2pi0 nutau 10) Search for the charmed pentaquark candidate Thetac(3100)0 in e+e- annihilations at sqrt(s)=10.58 GeV April 21, 2006 Update on BABAR Physics and Prospects 46 BABAR publications since last P5 visit 11) Observation of B0 Meson Decay to a1+/-(1260) pi-/+ 12) Branching fraction limits for B0 decays to eta' eta, eta' pi0 and eta pi0 13) Measurement of the B- -> D0 K*- branching fraction 14) Measurement of anti-B0 -> D(*)0 anti-K(*)0 branching fractions 15) Measurement of time-dependent CP asymmetries in B0 -> D(*)+/pi-/+ and B0 -> D+/- rho-/+ decays 16) Measurements of the branching fraction and time-dependent CP asymmetries of B0 -> J/psi pi0 decays 17) The e+e- -> 3(pi+pi-), 2(pi+pi-pi0) and K+K-2(pi+pi-) cross sections at center-of-mass energies from production threshold to 4.5 GeV measured with initial-state radiation 18) Measurements of the B -> D* form factors using the decay antiB0 -> D*+e- anti-nue 19) Measurement of CP observables for the decays B+/- -> D0CP K+/20) Study of e+e- -> p anti-p using initial state radiation with BABAR 21) Determinations of |Vub| from Inclusive Semileptonic B Decays with Reduced Model Dependence April 21, 2006 Update on BABAR Physics and Prospects 47 BABAR publications since last P5 visit 22) Search for the rare decays B0 -> Ds(*)+ a0(2)23) Search for rare quark-annihilation decays, B- -> Ds(*)- phi 24) Measurements of Lambda+c Branching Fractions of CabibboSuppressed Decay Modes involving Lambda and Sigma0 25) Measurement of the inclusive electron spectrum in charmless semileptonic B decays near the kinematic end point and determination of |Vub| 26) Study of the X(3872) and Y(4260) in B0 -> J/psi pi+ pi- K0 and B-> J/psi pi+ pi- K- decays 27) Search for the decay B+ -> tau+ nutau 28) Measurement of CP observables for the decays B+/- -> D0CP K*+/- April 21, 2006 Update on BABAR Physics and Prospects 48