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Peripheral Collisions

Fast moving highly-charged ions carry strong electromagnetic fields that act as a beam of photons. In collisions at large impact parameters (b>R1+R2), hadronic interactions are not possible, and the ions interact through photon-ion and photon-photon collisions known as ultra-peripheral collisions (UPCs).  Ultra-peripheral hadron-hadron collisions will provide unique opportunities for studying electromagnetic processes. Ultra-relativistic heavy-ion interactions have been used to study nuclear photo excitation (e.g., to a Giant Dipole Resonance) and photoproduction of hadrons.

 

                                                                                                  

Hadron colliders like the Relativistic Heavy Ion Collider (RHIC), the Tevatron, and the Large Hadron Collider (LHC) produce photonuclear and two-photon interactions at luminosities and energies beyond that accessible elsewhere.

 

 

Results with latest alignment and crossing angle

Updated on Wed, 2011-10-26 09:37 by yipkin. Originally created by wlodek on 2011-10-25 13:12.

Reference

Speaker : Kin


Talk time : 10:00, Duration : 00:40

Crossing angle from y vs x

Updated on Wed, 2011-10-19 08:48. Originally created by wlodek on 2011-10-18 09:57.

Reference

Speaker : Wlodek


Talk time : 09:00, Duration : 00:20

Crossing angle

Updated on Wed, 2011-10-12 08:35. Originally created by wlodek on 2011-10-11 13:12.

Reference

Speaker : Wlodek


Talk time : 10:00, Duration : 00:30

pp2pp analysis

Updated on Mon, 2011-09-12 09:08. Originally created by wlodek on 2011-09-12 09:08.
2011-12-21 09:00
2011-12-21 11:00
America/New York
Wednesday, 21 December 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00
TimeTalkPresenter
10:30Effects of changes of polarizations and various parameters on AN/r5 ( 00:20 ) 1 fileKin Yip

pp2pp analysis

Updated on Mon, 2011-09-12 09:08. Originally created by wlodek on 2011-09-12 09:08.
2011-12-28 09:00
2011-12-28 11:00
America/New York
Wednesday, 28 December 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00
TimeTalkPresenter
10:00Totem ( 00:30 ) 1 fileIgor
10:30paper ( 00:30 ) 3 files
11:00Beam Divergence ( 00:20 ) 1 fileKin Yip

pp2pp analysis

Updated on Mon, 2011-09-12 09:08. Originally created by wlodek on 2011-09-12 09:08.
2012-01-04 09:00
2012-01-04 11:00
America/New York
Wednesday, 4 January 2012
1-189 Physics, at 14:00 (GMT), duration : 02:00

pp2pp analysis

Updated on Mon, 2011-09-12 09:08. Originally created by wlodek on 2011-09-12 09:08.
2011-12-14 09:00
2011-12-14 11:00
America/New York
Wednesday, 14 December 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00
TimeTalkPresenter
10:00Results with the final geometry ( 00:30 ) 1 fileKin
10:30Paper ( 00:30 ) 2 filesJH

pp2pp analysis

Updated on Mon, 2011-09-12 09:08. Originally created by wlodek on 2011-09-12 09:08.
2011-11-02 10:00
2011-11-02 12:00
America/New York
Wednesday, 2 November 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00
TimeTalkPresenter
10:00A_N and r5 using the latest alignment and cross-angle corrections ( 00:20 ) 1 fileKin Yip

pp2pp analysis

Updated on Mon, 2011-09-12 09:08. Originally created by wlodek on 2011-09-12 09:08.
2011-11-09 09:00
2011-11-09 11:00
America/New York
Wednesday, 9 November 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00
TimeTalkPresenter
10:00Using phi and -t errors on the fits ( 00:20 ) 1 fileKin Yip
10:20Comparing r5 ( 00:20 ) 1 fileJHL

pp2pp analysis

Updated on Mon, 2011-09-12 09:08. Originally created by wlodek on 2011-09-12 09:08.
2011-11-16 09:00
2011-11-16 11:00
America/New York
Wednesday, 16 November 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00

pp2pp analysis

Updated on Mon, 2011-09-12 09:08. Originally created by wlodek on 2011-09-12 09:08.
2011-11-23 09:00
2011-11-23 11:00
America/New York
Wednesday, 23 November 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00

pp2pp analysis

Updated on Mon, 2011-09-12 09:08. Originally created by wlodek on 2011-09-12 09:08.
2011-11-30 09:00
2011-11-30 11:00
America/New York
Wednesday, 30 November 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00
TimeTalkPresenter
10:00SSA in single diffractive dissociation ( 00:30 ) 0 filesDave Underwood
10:30Finalizing geometry ( 00:20 ) 0 filesIgor and Wlodek
10:50Run 12 ( 00:20 ) 0 files

pp2pp analysis

Updated on Mon, 2011-09-12 09:08. Originally created by wlodek on 2011-09-12 09:08.
2011-12-07 09:00
2011-12-07 11:00
America/New York
Wednesday, 7 December 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00
TimeTalkPresenter
10:00Diffraction Dissociation Issues, Physics ( 00:30 ) 1 fileDave Underwood
10:30Final geometry ( 00:30 ) 0 filesIgor and Wlodek
11:00Run 12 ( 00:20 ) 0 files
11:20Central Production in 2009 data ( 00:20 ) 1 fileLeszek Adamczyk (Cracow)

pp2pp analysis

Updated on Mon, 2011-09-12 09:08. Originally created by wlodek on 2011-09-12 09:08.
2011-09-28 10:00
2011-09-28 12:00
America/New York
Wednesday, 28 September 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00

pp2pp analysis

Updated on Mon, 2011-09-12 09:08. Originally created by wlodek on 2011-09-12 09:08.
2011-10-05 10:00
2011-10-05 12:00
America/New York
Wednesday, 5 October 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00
TimeTalkPresenter
10:00Final re-alignment... ( 00:20 ) 0 filesIgor
10:20Fiducial cuts revisited ... ( 00:20 ) 1 fileKin Yip
10:40End game ( 00:20 ) 0 filesAll

pp2pp analysis

Updated on Mon, 2011-09-12 09:08. Originally created by wlodek on 2011-09-12 09:08.
2011-10-12 10:00
2011-10-12 12:00
America/New York
Wednesday, 12 October 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00
TimeTalkPresenter
10:00Crossing angle ( 00:30 ) 1 fileWlodek
10:30follow-up on angle-position study at RP4 for Blue Beam ( 00:20 ) 0 filesPhil Pile

pp2pp analysis

Updated on Mon, 2011-09-12 09:08. Originally created by wlodek on 2011-09-12 09:08.
2011-10-19 10:00
2011-10-19 12:00
America/New York
Wednesday, 19 October 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00
TimeTalkPresenter
09:00Crossing angle from y vs x ( 00:20 ) 1 fileWlodek
09:20follow-up on position vs angle at RP's plots ( 00:20 ) 1 filePhil Pile

pp2pp analysis

Updated on Tue, 2011-10-25 13:11. Originally created by wlodek on 2011-09-12 09:08.
2011-10-26 10:00
2011-10-26 12:00
America/New York
Wednesday, 26 October 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00

Title: pp2pp

Description: pp2pp analysis meeting
Community: STAR
Password: elasticpp

Meeting Access Information:
- Meeting URL
http://evo.caltech.edu/evoNext/koala.jnlp?meeting=eseieIvnveauaaIua8Is

- Password: elasticpp
- Phone Bridge
 ID: 11 0521
 Password: 5158

TimeTalkPresenter
10:00Results with latest alignment and crossing angle ( 00:40 ) 1 fileKin
10:40Crossing angle vs offset at the RP ( 00:20 ) 1 fileWlodek
11:00Naive alignment considerations ( 00:05 ) 1 fileIgor Alekseev (ITEP)

pp2pp analysis

Updated on Mon, 2011-09-12 09:08. Originally created by wlodek on 2011-09-12 09:08.
2011-09-21 10:00
2011-09-21 12:00
America/New York
Wednesday, 21 September 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00
TimeTalkPresenter
10:00Updates on field strength and more... ( 00:30 ) 1 filePhil
10:30Crossing angle effect ( 00:20 ) 1 fileWlodek
10:50Estimating overall systematic uncertainties ( 00:20 ) 1 fileJH
11:10Updates ( 00:20 ) 1 fileKin Yip

pp2pp analysis

Updated on Mon, 2011-09-12 09:06. Originally created by wlodek on 2011-09-12 09:06.
2011-09-14 10:00
2011-09-14 12:00
America/New York
Wednesday, 14 September 2011
1-189 Physics, at 14:00 (GMT), duration : 02:00