期刊
PHYSICAL REVIEW LETTERS
卷 103, 期 14, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.103.142301
关键词
-
资金
- DOE
- NSF (USA)
- MEXT
- JSPS (Japan)
- CNPq
- FAPESP (Brazil)
- NSFC (China)
- IN2P3/CNRS
- CEA (France)
- BMBF
- DAAD
- AvH (Germany)
- OTKA (Hungary)
- DAE (India)
- ISF (Israel)
- KRF
- KOSEF (Korea)
- MES
- RAS
- FAAE (Russia)
- VR
- KAW (Sweden)
- U. S. CRDF for the FSU
- U. S.-Hungarian NSF-OTKA-MTA
- U. S.-Israel BSF
Bose-Einstein correlations of charged kaons are used to probe Au+Au collisions at s(NN)=200 GeV and are compared to charged pion probes, which have a larger hadronic scattering cross section. Three-dimensional Gaussian source radii are extracted, along with a one-dimensional kaon emission source function. The centrality dependences of the three Gaussian radii are well described by a single linear function of N-part(1/3) with a zero intercept. Imaging analysis shows a deviation from a Gaussian tail at r greater than or similar to 10 fm, although the bulk emission at lower radius is well described by a Gaussian. The presence of a non-Gaussian tail in the kaon source reaffirms that the particle emission region in a heavy-ion collision is extended, and that similar measurements with pions are not solely due to the decay of long-lived resonances.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据