Correlation function for the a0(980)

R. Molina; Zhi Wei Liu; Li Sheng Geng; E. Oset

doi:10.1140/epjc/s10052-024-12694-w

Correlation function for the a0(980)

R. Molina^*
, Zhi Wei Liu
, Li Sheng Geng
, E. Oset

^*Corresponding author for this work

Sino-French Engineer School/School of General Engineering

University of Valencia
Beihang University
Chinese Academy of Sciences

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

We have conducted a model independent analysis of the K⁺K¯⁰ 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 π⁺η. With the present large errors at small relative K⁺K¯⁰ 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 a₀ resonance, a₀(980), showing as a strong cusp close to the KK¯ threshold. We also mention that the measurement of the π⁺η correlation function will be essential in order to constrain more the information on KK¯ dynamics that can be obtained from correlation functions.

Original language	English
Article number	328
Journal	European Physical Journal C
Volume	84
Issue number	3
DOIs	https://doi.org/10.1140/epjc/s10052-024-12694-w
State	Published - Mar 2024

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title = "Correlation function for the a0(980)",

abstract = "We have conducted a model independent analysis of the K+K¯0 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 π+η. With the present large errors at small relative K+K¯0 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 a0 resonance, a0(980), showing as a strong cusp close to the KK¯ threshold. We also mention that the measurement of the π+η correlation function will be essential in order to constrain more the information on KK¯ dynamics that can be obtained from correlation functions.",

author = "R. Molina and Liu, \{Zhi Wei\} and Geng, \{Li Sheng\} and E. Oset",

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year = "2024",

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doi = "10.1140/epjc/s10052-024-12694-w",

language = "英语",

volume = "84",

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TY - JOUR

T1 - Correlation function for the a0(980)

AU - Molina, R.

AU - Liu, Zhi Wei

AU - Geng, Li Sheng

AU - Oset, E.

PY - 2024/3

Y1 - 2024/3

N2 - We have conducted a model independent analysis of the K+K¯0 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 π+η. With the present large errors at small relative K+K¯0 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 a0 resonance, a0(980), showing as a strong cusp close to the KK¯ threshold. We also mention that the measurement of the π+η correlation function will be essential in order to constrain more the information on KK¯ dynamics that can be obtained from correlation functions.

AB - We have conducted a model independent analysis of the K+K¯0 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 π+η. With the present large errors at small relative K+K¯0 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 a0 resonance, a0(980), showing as a strong cusp close to the KK¯ threshold. We also mention that the measurement of the π+η correlation function will be essential in order to constrain more the information on KK¯ dynamics that can be obtained from correlation functions.

UR - https://www.scopus.com/pages/publications/85189167786

U2 - 10.1140/epjc/s10052-024-12694-w

DO - 10.1140/epjc/s10052-024-12694-w

M3 - 文章

AN - SCOPUS:85189167786

SN - 1434-6044

VL - 84

JO - European Physical Journal C

JF - European Physical Journal C

IS - 3

M1 - 328

ER -

Correlation function for the a0(980)

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