1. Report from India Topical Conference on Hadron Collider Physics XIII Jan 14-20, TIFR, India Naohito Saito RIKEN/ RIKEN BNL Research Center

2. Topical Conference on Hadron Collider Physics Previously called “Proton-Antiproton collider physics”, changed to include ep and pp, sometimes ee and , recently AA A series of conference on –the results from SppS T EVATRON –and the prospects for future Run II@T EVATRON, LHC, NLC, and RHIC 120 participants; about a half from India No US-National-Lab participants

3. Programme Electroweak Physics –W/Z cross section –W mass (CDF/D0/LEP) –WW  QCD –Jet/Dijet –Rapidity Gap/Diffraction –Structure Function: proton and photon Heavy Quarks –Top:mass, decay modes, cross section –Bottom:cross section, CP violation New Phenomena: Higgs, SUSY, Leptoquark, Compositeness Future: RHIC, LHC, NLC, and muon collider

4. Number of detected W Bosons TEVATRON –Run 0 ‘88-89 4pb -1 –Run 1A ‘92-93 20pb -1 –Run 1B ‘94-95 90pb -1 –Run 1C ‘95-96 20pb -1

5. W and Z Cross Sections T EVATRON Measurements and Theory

6. W Boson Width

7. W Boson Mass

8. Run 1~100 pb-1=> CDF 90 MeV; D0 100 MeV --> Combined 70 MeV Run 2 ~ 2 fb-1 => 40 MeV per experiment TeV33~30 fb-1 => 20 MeV

9. W Boson Mass Direct W Mass Measurement s

10. Constraint on the Higgs

11. Top Mass Results of D0 and CDF

12. Top Cross Sections CDF > D0~ Theory

13. W Helicity in Top Production Longitudinally Polarized W

14. Z’ Search in Dilepton Mode No deviations from SM

15. Bottom Cross sections Theory still underestimat es  by a factor of 2

16. HERA - Kinematic Range

17. F 2 vs Q 2 from 1994 Data Precision reached ~1% stat and ~3% syst

18. J/  at HERA Color Octet Failed?

19. Physics at RHIC Study of QCD in extreme conditions –heavy ion physics - hot and dense limit –spin physics - high Q 2 with spin d.o.f. Heavy Ion Physics –search for a new state of matter - Quark Gluon Plasma –characterize its physical properties Spin Physics –elucidate the spin structure of the nucleon –search for a physics beyond standard model

20. Confinement and QGP Quarks are confined in a hadron –No free quark has been observed They can be free at; –high energy asymptotic freedom –high temperature –high density High temperature –a few  sec after big-bang –in relativistic heavy ion collision

21. Phase Diagram of Hadronic Matter from hadro-chemical analysis At SPS and AGS, the freeze-out points approach the “boundary”. RHIC and LHC should show clearer signal of phase transition

22. R elativistic H eavy I on C ollider (RHIC) The first collider for –Heavy Ions: e.g. Au+Au at 200A GeV current max: 18A GeV (CERN SPS) –Polarized Protons at 500 GeV current max: 20 GeV (FNAL) RIKEN BNL Collaboration pp luminosity is for enhanced mode. RHIC Accelerator Specification

23. STAR Detector in Assembly Hall

24. PHENIX at Experimental Hall

25. PHENIX Priorities in Year- 1 1. Sufficient Au+Au running to –Turn-on, calibrate, commission all installed detectors –Reach 20  b -1 integrated L (to tape) 2. Polarized proton commissioning in one ring 3. Anything else (e.g. p+A, lower E, lighter A) Coherent request with STAR RHIC Spin Collaboration ( spokesman: G. Bunce ) proposal –4 weeks of commissioning in the first year

26. Gluons at RHIC Completely new domain of studies –polarized gluon,  G(x) one of the major interests in RHIC Spin physics –even unpolarized gluon G(x) highest energy in pp collisions; any energy dependent systematic uncertainty? –“EMC effect” in gluon pA and AA; how gluons behave in nuclei? provide a basis of “exotic search” in AA –J/  suppression ; open heavy flavor production –nuclear shadowing effect

27. Unpolarized Gluon Distribution Comparison of the most recent analysis normalized to MRST central –MRST distribution hep-ph/9803445 3 versions of g(x) = 0.0, 0.4, 0.64 GeV –MRST(g↑) high gluon –MRST central –MRST(g↓) low gluon –CTEQ4M PR D55 (97) 1280 –CTEQ5 to be released with new k T analysis