3,783 research outputs found
Fragmentation Functions in-Medium, Two Particle Correlations and Jets in PHENIX at RHIC
Latest results from the PHENIX experiment at RHIC on these topics will be
presented. Results will be shown for Au+Au compared to p-p collisions as well
as compared to results from fully reconstructed jets at LHC.Comment: 3 pages 4 figures, to appear in the Proceedings of The 19th Particles
and Nuclei International Conference (PANIC11) held at the Massachusetts
Institute of Technology (MIT) from Sunday July 24th through Friday July 29th
201
Highlights from BNL-RHIC-2012
Recent highlights from Brookhaven National Laboratory and the Relativistic
Heavy Ion Collider (RHIC) are reviewed and discussed in the context of the
discovery of the strongly interacting Quark Gluon Plasma (sQGP) at RHIC in 2005
as confirmed by results from the CERN-LHC Pb+Pb program. Outstanding RHIC
machine operation in 2012 with 3-dimensional stochastic cooling and a new EBIS
ion source enabled measurements with Cu+Au, U+U, for which multiplicity
distributions are shown, as well as with polarized p-p collisions. Differences
of the physics and goals of p-p versus A+A are discussed leading to a review of
RHIC results on pi0 suppression in Au+Au collisions and comparison to LHC Pb+Pb
results in the same range 5<pT<20 GeV. Results of the RHIC Au+Au energy scan
show that high pT suppression takes over from the "Cronin Effect" for c.m.
energies > 30 GeV. Improved measurements of direct photon production and
correlation with charged particles at RHIC are shown, including the absence of
a low pT (thermal) photon enhancement in d+Au collisions. Attempts to
understand the apparent equality of the energy loss of light and heavy quarks
in the QGP by means of direct measurements of charm and beauty particles at
both RHIC and LHC are discussed.Comment: Invited lecture at the International School of Subnuclear Physics,
50th Course, "What we would like LHC to give us", Erice, Sicily, Italy, June
23-July 2, 2012. 16 pages, 12 figure
Waiting for the W and the Higgs
The search for the left-handed bosons, the proposed quanta of the
weak interaction, and the Higgs boson, which spontaneously breaks the symmetry
of unification of electromagnetic and weak interactions, has driven
elementary-particle physics research from the time that I entered college to
the present and has led to many unexpected and exciting discoveries which
revolutionized our view of subnuclear physics over that period. In this article
I describe how these searches and discoveries have intertwined with my own
career.Comment: 23 pages 12 figures, accepted for publication in The European
Physical Journal
- …