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◆ Physical review. D/Physical review. D.2026-03-19· Computer science

Decoding <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msub> <mml:mi>Z</mml:mi> <mml:mi>c</mml:mi> </mml:msub> <mml:mo stretchy="false">(</mml:mo> <mml:mn>4430</mml:mn> <mml:mo stretchy="false">)</mml:mo> </mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msub> <mml:mi>Z</mml:mi> <mml:mi>c</mml:mi> </mml:msub> <mml:mo stretchy="false">(</mml:mo> <mml:mn>4200</mml:mn> <mml:mo stretchy="false">)</mml:mo> </mml:math> : The role of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mi>P</mml:mi> </mml:math> -wave charmed mesons

Jian-Bo Cheng, Zi-Yang Lin, Jun-Zhang Wang, Shi-Lin Zhu

原始摘要(英文原文)· Original abstract
In this work, we perform a systematic investigation of the hidden-charm tetraquark states with I G ( J P C ) = 1 + ( 1 + − ) within the hadronic molecular picture, placing particular emphasis on systems composed of an S -wave ( D , D * ) meson and a P -wave [ D 0 * ( 2300 ) , D 1 ( 2430 ) , D 1 ( 2420 ) , D 2 * ( 2460 ) ] meson. Adopting the one-boson exchange potential, we solve the Schrödinger equation in momentum space via the complex scaling method. A crucial feature of our approach is the rigorous treatment of the unstable nature of the P -wave constituents by incorporating three-body decay effects arising from self-energy corrections and the static limit approximation. Our results demonstrate that these three-body dynamics play a crucial role in determining the pole positions, specifically in reproducing the large decay widths observed experimentally. We identify several broad resonances in the D * D ¯ 1 ( 2420 ) and D * D ¯ 2 * ( 2460 ) systems as candidates for the Z c ( 4430 ) , while the significantly broader resonances in the D D ¯ 0 * ( 2300 ) and D D ¯ 1 ( 2430 ) sectors are suggested as candidates for the Z c ( 4200 ) . Focusing on the D * D ¯ 2 * (
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Decoding <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msub> <mml:mi>Z</mml:mi> <mml:mi>c</mml:mi> </mml:msub> <mml:mo stretchy="false">(</mml:mo> <mml:mn>4430</mml:mn> <mml:mo stretchy="false">)</mml:mo> </mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msub> <mml:mi>Z</mml:mi> <mml:mi>c</mml:mi> </mml:msub> <mml:mo stretchy="false">(</mml:mo> <mml:mn>4200</mml:mn> <mml:mo stretchy="false">)</mml:mo> </mml:math> : The role of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mi>P</mml:mi> </mml:math> -wave charmed mesons — 科研速览 Science Skim