1,219 research outputs found
Indication for scattering in collisions at 200 GeV
A mass shift of about -40 MeV/ was measured in
collisions at 200 GeV at RHIC. Previous mass shifts have
been observed at CERN-LEBC-EHS and CERN-LEP. We will show that phase space does
not account for the mass shift measured at RHIC, CERN-LEBC-EHS
and CERN-LEP and conclude that there are significant scattering interactions in
collisions.Comment: 11 pages and 7 figure
The Ursinus Weekly, May 27, 1929
Curtis concert Monday pleases large audience • Theatre theme of English Club in final meeting • H. Q. Van Ufford addresses joint Christian bodies • Bears down Gettysburg by 8-2 score in final home stand of the season • Gavin ties for pole vault honors in Middle Atlantics • Annual council elections held by three classes • Commencement program • Track teams close season; MacBath highest scorer • Grizzly netwomen halve match with Beaver 2-2 • Doris Wagner presents attractive piano program • Yost to head Music Club • Old-timers take notice • The illustrious name Ursinushttps://digitalcommons.ursinus.edu/weekly/2186/thumbnail.jp
The Ursinus Weekly, May 20, 1929
Annual junior weekend fulfills all predictions of the class of \u2730 • Dr. Henry Crosby speaks in chapel on Tuesday • Swarthmore and Schuylkill beaten; but bears drop fray to Juniata 3-2 • Tennis team ends season with an excellent record • Music students broadcast from station WLIT Friday • Ursinus College to hear Curtis Institute artists • Annual senior reception • Officers of Dramatic Club • Math group elects officers • Annual faculty banquet • Allentown dorm benefit • Freshman track meet • Ursinus men break three records at Dickinson • Eastern Pennsylvania track conference held • International Relations Club holds meeting, Tuesday • The Eger gateway • Women\u27s Debating Club • Dr. Elmer, famous archer, visits Ursinus campushttps://digitalcommons.ursinus.edu/weekly/2185/thumbnail.jp
Observing Spontaneous Strong Parity Violation in Heavy-Ion Collisions
We discuss the problem of observing spontaneous parity and CP violation in
collision systems. We discuss and propose observables which may be used in
heavy-ion collisions to observe such violations, as well as event-by-event
methods to analyze the data. Finally, we discuss simple monte-carlo models of
these CP violating effects which we have used to develop our techniques and
from which we derive rough estimates of sensitivities to signals which may be
seen at RHIC
A Doppler Drift Angle Detector for Search Radars
Control Systems Laboratory changed its name to Coordinated Science LaboratoryContract DA-36-039-SC-5669
, K and f Production in Au-Au and pp Collisions at = 200 GeV
Preliminary results on , KK and production using the mixed-event
technique are presented. The measurements are performed at mid-rapidity by the
STAR detector in = 200 GeV Au-Au and pp interactions at RHIC.
The results are compared to different measurements at various energies.Comment: 4 pages, 6 figures. Talk presented at Quark Matter 2002, Nantes,
France, July 18-24, 2002. To appear in the proceedings (Nucl. Phys. A
Resonance Production
Recent results on rho(770)^0, K(892)^*0, f_0(980), phi(1020), Delta(1232)^++,
and Lambda(1520) production in A+A and p+p collisions at SPS and RHIC energies
are presented. These resonances are measured via their hadronic decay channels
and used as a sensitive tool to examine the collision dynamics in the hadronic
medium through their decay and regeneration. The modification of resonance
mass, width, and shape due to phase space and dynamical effects are discussed.Comment: 8 pages, 10 figures, proceedings of the Quark Matter 2004, in
Oakland, California, to be published in Journal of Physics G: Nuclear and
Particle Physic
Production in Au+Au and pp Collisions at = 200GeV at STAR
Mid-rapidity and are
measured in Au+Au and pp collisions at =200GeV using the STAR
detector at RHIC. The mass is systematically shifted at small
transverse momentum for both Au+Au and pp collisions. The
transverse mass spectra are measured in Au+Au collisions at different
centralities and in pp collisions. The mean transverse momentum
as a function of the collision centrality is compared to those of identified
, and . The and ratios are
compared to measurements in A+A, , , collisions at
various colliding energies. The physics implications of these measurements are
also discussed.Comment: 6 pages, 4 figures, proceedings of Strange Quarks in Matter
(SQM2003), Atlantic Beach, USA, to be published in J. Phys.
e^+e^- Pair Production from A Reactions
We present a calculation of e^+e^- production in reactions at MAMI
and TJNAF energies within a semi-classical BUU transport model. Dilepton
invariant mass spectra for C, Ca and Pb are calculated
at 0.8, 1.5 and 2.2 GeV. We focus on observable effects of medium modifications
of the and mesons. The in-medium widths of these mesons are
taken into account in a dynamical, consistent way. We discuss the transport
theoretical treatment of broad resonances.Comment: 42 pages including 16 figure
Resonant Steps in the Characteristics of a Josephson Junction Coupled to a Transmission Line
A novel circuit is described which functions as an electronic analog of lumped element transmission line. The circuit requires only operational amplifiers, resistors, and capacitors. This module was coupled to a Josephsonj unction simulator and current voltage characteristics of the combined system were recorded. Steps were observed at voltages determined by the appropriate line resonances. When the transmission line was terminated with loads less than the characteristic impedance, chaos was seen in the lower steps. Similar results were obtained by numerical integration of the corresponding system of differential equations
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