1. Outline  Higgs Particle Searches for Origin of Mass  Grid Computing  A brief Linear Collider Detector R&D  The  The grand conclusion: YOU are the ONE!!! Origin of Mass, Higgs, Grid Computing, a Novel Detector and Y YY YOU, the Difference Dr. Jaehoon Yu

2. Physics Department Colloquium Oct. 2005, J. Yu Origin of Mass and Higgs Searches  We have been looking for answers for the origin of mass!!  Higgs particle seems to be deeply involved in it but… u We haven’t seen it yet and could be just around the corner, so you can be the one u Have many thesis topics that needs immediate attention u New and brilliant ideas for searches needed u We are leading this effort in the DØ experiment and are playing a significant role in developing new tools in ATLAS experiment  Work with top physicists at top HEP laboratories on the top priority issue

3. Physics Department Colloquium Oct. 2005, J. Yu Fermilab Tevatron and LHC at CERN  Present world’s Highest Energy proton-anti-proton collider u E cm =1.96 TeV (=6.3x10 -7 J/p  13M Joules on 10 -4 m 2 )  Equivalent to the kinetic energy of a 20t truck at a speed 80 mi/hr Chicago  Tevatron pp p CDF DØ  World’s Highest Energy proton- proton collider in summer 2007 u E cm =14 TeV (=44x10 -7 J/p  1000M Joules on 10 -4 m 2 )  Equivalent to the kinetic energy of a 20t truck at a speed 6150 mi/hr

4. Physics Department Colloquium Oct. 2005, J. Yu Recent Higgs Search Results in DØ UTA result now! UTA result in Jan. 2006! 1fb -1 ~3times the data now. Better than anyone else! Will be published soon! Hyunwoo Kim Venkat Kaushik

5. Physics Department Colloquium Oct. 2005, J. Yu Recent Development of ATLAS e-ID Tools IsEM w/o trackmatch Efficiencies over 98%!! Rejections over 10 -3 ~10 -4 !! Brand new approach for high electron identification efficiency, high bck rejection for H  ZZ  eeee Hyeonjin Kim

6. Physics Department Colloquium Oct. 2005, J. Yu How are computers used in HEP? Digital Data Data Reconstruction pp p Expect 2-4PB/year in ATLAS

7. Physics Department Colloquium Oct. 2005, J. Yu Grid Computing  I have created and been leading a regional grid organization, called DOSAR, Distributed Organization for Scientific and Academic Research u This organization relies heavily on the only U.S. Regional Analysis Center at for DØ at UTA  We have been playing a leading role in shaping the grid computing in the state and in the world  We are playing a leading role in developing ATLAS distributed data analyses!! u We obtained significant support for this effort from the ATLAS experiment u We became one of the three ATLAS Tier2 computing centers s We have a large computing room already in place in the new building

8. Physics Department Colloquium Oct. 2005, J. Yu ot Grid Monitoring

9. Physics Department Colloquium Oct. 2005, J. Yu DØ data Reprocessing 30 million events served!!

10. Physics Department Colloquium Oct. 2005, J. Yu Only the beginning, UTA – RAC (DPCC) 100 P4 Xeon 2.6GHz CPU = 260 GHz 64TB of IDE RAID + 4TB internal NFS File system 84 P4 Xeon 2.4GHz CPU = 202 GHz 5TB of FBC + 3.2TB IDE Internal GFS File system Total CPU: 462 GHz Total disk: 76.2TB Total Memory: 168Gbyte Network bandwidth: 68Gb/sec HEP – CSE Joint Project DØ+ATLAS CSE Research

11. Physics Department Colloquium Oct. 2005, J. Yu Computing Room in the New Building We are ready to continually play a major role in grid computing!!

12. Physics Department Colloquium Oct. 2005, J. Yu Linear Collider Detector R&D  Simulated data study of GEM Digital Hadron Calorimeter and Algorithm development  Opportunity for making the difference for the future!!  We play a leadership role ILC on beam tests and in a detector collaboration

13. Physics Department Colloquium Oct. 2005, J. Yu Conclusions: You are the ONE!!!  Exciting opportunities u ATLAS Detector assembly, commissioning and Higgs search s Bring in new ideas to make the difference s Abundant Ph.D. thesis topics –You might even be the one finding the Higgs particle s Opportunity to do research in Switzerland u Novel Detector R&D for the future s Tons of master thesis topics  We are looking for good friends and colleagues to work with us to achieve rich physics goals  Come and talk to me at Rm-242A or send e-mail to me at jaehoonyu@uta.edujaehoonyu@uta.edu