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Correlation function for the a0(980)
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DOI：10.1140/epjc/s10052-024-12694-w.png)
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摘要
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We have conducted a model independent analysis of the (K+K0) pair correlation function obtained from ultra high energy pp collisions, with the aim of extracting the information encoded in it related to the KK interaction and the coupled channel pi(+)eta. With the present large errors at small relative (K+K0) momenta, we find that the information obtained about the scattering matrix suffers from large uncertainties. Even then, we are able to show that the data imply the existence of the a(0) resonance, a(0)(980), showing as a strong cusp close to the KK threshold. We also mention that the measurement of the pi(+)eta correlation function will be essential in order to constrain more the information on KK dynamics that can be obtained from correlation functions.
Keyword:
HEAVY-ION COLLISIONS
PI-PI
EVENT
EXTRACTION
SCATTERING
F(0)(500)
F(0)(980)
DECAYS
D-0
期刊
IF:
4.8
论文数:
1.8W
被引数:
4.7W
机构
引用论文
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