Welcome to RHIC News
We hope that this web publication will in some small measure reflect the excitement of the RHIC and AGS program at Brookhaven, as explained by some of the people who are doing the experiments, analyzing the data, and writing the papers.
Color Glass Condensate and the Glasma
By Larry McLerran
The HERA accelerator some years ago measured the gluon distribution inside of protons. The surprising result was that the measured number of gluons inside a fast moving proton was rapidly rising as the energy increased. On the other hand, the size of a proton is a very slowly increasing function of energy. This means that the gluon density has to become large. More...
AGS User’s Meeting 2008
By Abhay Deshpande
Friends and colleagues, the 2008 RHIC AGS User’s meeting dates have changed since they were first declared. Please mark your calendars: It will be held on May 27- May 30, 2008. The change had to occur to avoid possible clashes with other meetings of interest to our users, and we accept with apologies that it starts immediately on the day after the Memorial Day. Anyone who has tried to organize a meeting these days can attest that it has become extremely difficult to avoid conflicts, sometimes even impossible. We hope these new and final dates will conflict minimally with the interests of RHIC AGS Users and you will participate with your usual enthusiasm. More...
from the 2008 Deuteron-Gold Run at PHENIX
By Mike Leitch
The PHENIX Collaboration has reached the end of a very successful Deuteron-Gold (d+Au) run with over 80 nb-1 of integrated luminosity representing 160 billion sampled minimum-bias events at the end of the d+Au run on January 27th. This exceeds our original luminosity goal of 58 nb-1 by about 40% and is about 30 times larger than the 2.7 nb-1 obtained in the previous (2003) d+Au run. Given improvements in the detectors and in the shielding since 2003 and better control of beam backgrounds – this data promises to become a new standard for RHIC Cold Nuclear Matter (CNM) effects, and as the baseline for heavy-ion collision data, for years to come. More...
has a successful dAu Physics Run
By W.B. Christie
The STAR Collaboration / Experiment had a very successful FY08 deuteron on gold (dAu) Physics run. In addition to accumulating a physics data set that we’re confident will produce exciting and significant physics results, we successfully installed, integrated, and took data with three new detector systems. More...
Spin Results From the Polarized p+p Run at √s = 62.4 GeV: Single
Spin Asymmetries of Pions, Kaons, and Protons
By J. H. Lee
The BRAHMS collaboration has submitted a paper to Physical Review Letters on the first spin results from the RHIC/Run-6 polarized proton run at √s = 62.4 GeV. The paper reports the measurements of transverse Single Spin Asymmetries (SSAs) of identified charged hadrons, π±, K±, and protons, from transversely polarized proton-proton collisions. The measurements extend to high Feynman-x, xF = 2pL/√s ∼ 0.6 by utilizing the unique capability of the BRAHMS Forward Spectrometer (FS) for measuring charged hadrons at the forward kinematic region with particle identification. More...
Short news items of interest to the RHIC AGS community.
This week: FY08 budgets, Intel semifinalists, and the coffee shop. More...