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SUMMARY:DbarN meson-baryon scatter in Lattice QCD
DTSTART;VALUE=DATE-TIME:20261010T064000Z
DTEND;VALUE=DATE-TIME:20261010T065500Z
DTSTAMP;VALUE=DATE-TIME:20261005T070535Z
UID:indico-contribution-2833@indico.itp.ac.cn
DESCRIPTION:Speakers: 啸 常 (中国科学院近代物理研究所)\nThis
  project studies the low-energy $\\bar{D}N$ scattering in lattice QCD\, fo
 cusing on the S-wave channels $I(J^P)=0\\left(\\frac12^-\\right)\, 1\\left
 (\\frac12^-\\right)$.\n\nFinite-volume $\\bar{D}N$ correlation functions a
 re analyzed using the generalized eigenvalue problem (GEVP) to extract the
  two-body energy spectrum. The Lüscher formalism is then used to relate t
 he finite-volume energy levels to infinite-volume scattering amplitudes. N
 ear threshold\, the effective range expansion (ERE) is employed to extract
  low-energy scattering parameters\, including the scattering length and ef
 fective range. Possible effects from higher channel $\\bar{D}^*N$ \, is al
 so considered.\n\nThe overall aim is to obtain a first-principles understa
 nding of the low-energy $\\bar{D}N$ interaction and to clarify whether it 
 supports any near-threshold structures.\n\nhttps://indico.itp.ac.cn/event/
 437/contributions/2833/
LOCATION:会议楼2 CXII102
URL:https://indico.itp.ac.cn/event/437/contributions/2833/
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