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Claude A. Pruneau 《Acta Physica Hungarica A》2004,21(2-4):261-266
We present analyses of event-by-event dynamical net charge fluctuations measured in 130 and 200 GeV Au+Au collisions with the STAR detector. The dynamical net charge fluctuations are evaluated using the ν +-,dyn observable. Dynamical fluctuations measured in Au+Au collisions at 130 and 200 GeV are finite, and exceed charge conservation limits. They deviate from a perfect 1/N scaling and provide an indication that the collision dynamics varies with collision centrality. 相似文献
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M. Convery W. L. Davis K. DelSignore T. L. Jenkins E. Kangas M. Knepley K. L. Kowalski C. C. Taylor C. H. Wang S. H. Oh W. D. Walker P. L. Colestock B. Hanna M. A. Martens J. M. Streets R. C. Ball H. R. Gustafson L. W. Jones M. J. Longo J. D. Bjorken N. Morgan C. Pruneau 《Il Nuovo Cimento C》1996,19(6):1045-1049
Summary A small experiment, ?MiniMax?, has been set up in the C0 intersection region of the Fermilab Tevatron to seek evidence for
disoriented chiral condensates and to study other forward physics phenomena. The experiment consists of a proportional wire
chamber telescope accompanied by scintillation (trigger) counters, a lead converter, and followed by an electromagnetic calorimeter.
The solid angle accepted is a cone centered at pseudorapidity (η) of 4.1 and of radius (in η-ϕ space) of about 0.6. Over 2.5
million events thus far have demonstrated the successful operation of the apparatus, however to date the analysis has not
progressed sufficiently to permit any conclusions concerning disoriented chiral condensates.
presented byL. W. Jones
Paper presented at the Special Session on very high-energy cosmic-ray interactions (superfamilies) of the XXIV International
Cosmic-Ray Conference, Rome, August 28–September 8, 1995. 相似文献
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Claude A. Pruneau 《Acta Physica Hungarica A》2006,25(2-4):401-408
We present measurements of dynamical net charge fluctuations in Au+Au collisions at $\sqrt {s_{NN} } = 20$ , 62, 130 and 200 GeV using the measure ν +?,dyn. We observe the dynamical fluctuations are finite at all energies, and do not exhibit dependence on beam energy. We find net charge fluctuations violate the trivial 1/N scaling expected for nuclear collisions consisting of independent nucleon-nucleon interactions. We also find dynamical fluctuations exhibit sizable dependence of the pseudo-rapidity and azimuthal ranges of integration. We compare measured data with transport models and a toy model invoking radial flow, and show the bulk of the measured correlations can be accounted for by resonance production and radial collective flow. 相似文献
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Magdy Niseem Basu Sumit Gonzalez Victor Marin Ana Evdokimov Olga Lacey Roy A. Pruneau Claude 《The European Physical Journal C - Particles and Fields》2021,81(8):1-16
The European Physical Journal C - We present a study on inclusive emissions of a double $$\Lambda _c$$ or of a $$\Lambda _c$$ plus a light-flavored jet system as probe channels in the semi-hard... 相似文献
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J. Barrette R. Bellwied P. Braun-Munzinger W. E. Cleland T. M. Cormier G. David J. Dee G. E. Diebold O. Dietzsch J. V. Germani S. Gilbert S. V. Greene J. R. Hall T. K. Hemmick N. Herrmann B. Hong K. Jayananda D. Kraus B. Shiva Kumar R. Lacasse D. Lissauer W. J. Llope T. W. Ludlam S. McCorkle R. Majka S. K. Mark J. T. Mitchell M. Muthuswamy E. O'Brien C. Pruneau M. N. Rao F. Rotondo J. Sandweiss N. C. daSilva U. Sonnadara J. Stachel H. Takai E. M. Takagui T. G. Throwe C. Winter G. Wang D. Wolfe C. L. Woody N. Xu Y. Zhang Z. Zhang C. Zou 《Zeitschrift fur Physik C Particles and Fields》1993,59(2):211-214
We have measured distributions in transverse momentum and rapidity of protons from interactions of 14.6 GeV/nucleon28Si projectiles with targets of Al and Pb. The transverse momentum spectra exhibit a thermal shape with a rapidity dependent temperature parameter. For very central or violent collisions the proton rapidity distributions exhibit the large rapidity shifts and (for Si+Al) a peak at midrapidity as required for full stopping. 相似文献
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Barrette J Bellwied R Braun-Munzinger P Cleland WE Cormier T Dadusc G David G Dee J Diebold GE Dietzsch O Duek E Fatyga M Fox D Greene SV Germani JV Hall JR Hemmick TK Herrmann N Hogue RW Hong B Jayananda K Kraus D Kumar BS Lacasse R Lissauer D Llope WJ Ludlam TW Majka R Makowiecki D Mark SK Mitchell JT Muthuswamy M O'Brien E Pruneau C Rotondo FS Sandweiss J da Silva NC Simon-Gillo J Slaughter J Sonnadara U Stachel J Takai H Takagui EM Throwe TG Waters L Winter C Wolf K Wolfe D Woody CL Xu N 《Physical review letters》1993,70(12):1763-1766
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Barrette J Bellwied R Bennett S Braun-Munzinger P Cleland WE Cormier TM David G Dee J Diebold GE Dietzsch O Fox D Germani JV Gilbert S Greene SV Hall JR Hemmick TK Herrmann N Hong B Jayananda K Kraus D Kumar BS Lacasse R Li Q Lissauer D Llope WJ Ludlam TW McCorkle S Majka R Mark SK Matheus R Mitchell JT Muthuswamy M O'Brien E Panitkin S Pruneau C Rao MN Rosati M Rotondo F daSilva NC Simon-Gillo J Sonnadara U Stachel J Sullivan J Takai H Takagui EM Throwe TG Winter C Wang G Wolf KL Wolfe D 《Physical review letters》1993,70(20):2996-2999
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Barrette J Bellwied R Bennett S Braun-Munzinger P Cleland WE Clemen M Cole J Cormier TM David G Dee J Dietzsch O Drigert M Gilbert S Hall JR Hemmick TK Herrmann N Hong B Jiang CL Kwon Y Lacasse R Lukaszew A Li Q Ludlam TW McCorkle S Mark SK Matheus R O'Brien E Panitkin S Piazza T Pruneau C Rao MN Rosati M daSilva NC Sedykh S Sonnadara U Stachel J Takai H Takagui EM Voloshin S Wang G Wessels JP Woody CL Xu N Zhang Y Zhang Z Zou C 《Physical review letters》1994,73(19):2532-2535
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