Transverse momentum dependent two-pion Bose-Einstein correlations in Au + Au collisions at 11.6 A {center_dot} GeV/c
- Brookhaven National Lab., Upton, NY (United States). Physics Dept.
Bose-Einstein correlations of {pi}{sup +}{pi}{sup +} and {pi}{sup {minus}}{pi}{sup {minus}} pairs collected by the BNL-E866 Forward Spectrometer in 11.6 A{center_dot}GeV/c Au + Au collisions have been measured. The data were analyzed using three-dimensional correlation functions parameterized by the Yano-Koonin-Potgoretskii and Bertsch-Pratt formalism to study transverse momentum dependent source parameters. Rapid decreases of longitudinal source radii and slower decreases in the transverse parameters with increasing transverse momentum were observed, which suggests a strong longitudinal and some transverse expansion. A freeze-out time {tau}{sub 0} was derived as 4.5--5 fm/c, under the assumption of the freeze-out temperature T = 130 MeV, and the duration of emission was found to be {delta}{tau} {approx} 2--4 fm/c.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States); Columbia Univ., New York, NY (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Univ. of California, Riverside, CA (United States)
- Sponsoring Organization:
- USDOE Assistant Secretary for Energy Efficiency and Renewable Energy, Washington, DC (United States); National Aeronautics and Space Administration, Washington, DC (United States); Korea Science and Engineering Foundation (Korea, Republic of); Ministry of Education, Science and Culture (Japan)
- DOE Contract Number:
- AC02-98CH10886; FG02-86ER40281; W-7405-ENG-48; AC02-76ER03069; FG03-86ER40271
- OSTI ID:
- 674842
- Report Number(s):
- BNL-65783; CONF-9806134-; ON: DE99000605; BR: KB0201; CNN: Contract NASA NGR-05-003-513; TRN: 99:001186
- Resource Relation:
- Conference: 2. Catania relativistic ion studies conference, Acicastello (Italy), 8-12 Jun 1998; Other Information: PBD: [1998]
- Country of Publication:
- United States
- Language:
- English
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