QCD sum rule for open strange meson K 1 ± in nuclear matter

Taesoo Song, Tetsuo Hatsuda, Su Houng Lee

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3 Citations (Scopus)


The properties of open strange meson K 1 ± in nuclear matter are estimated in the QCD sum rule approach. We obtain a relation between the in-medium mass and width of K 1 (K 1 + ) in nuclear matter, and show that the upper limit of the mass shift is as large as −249 (−35) MeV. The spectral modification of the K 1 meson is possible to be probed by using kaon beams at J-PARC. Such measurement together with that of K will shed light on how chiral symmetry is partially restored in nuclear matter.

Original languageEnglish
Pages (from-to)160-169
Number of pages10
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publication statusPublished - 2019 May 10

Bibliographical note

Funding Information:
This work was supported by the Korea National Research Foundation (NRF) under Grant No. 2016R1D1A1B03930089 . T.H. was partially supported by RIKEN iTHEMS program and JSPS Grant-in-Aid for Scientific Research (S), No. 18H05236 . The work of T.H. was performed at the Aspen Center for Physics, which is supported by National Science Foundation grant PHY-1607611 .

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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