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| Issue 3, 2023 |
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Accepted articles | |
| Methodological notes |
On the effective range expansion in a multichannel system and compositeness of a near-threshold resonance
Lebedev Physical Institute, Russian Academy of Sciences, Leninsky prosp. 53, Moscow, 119991, Russian Federation
We discuss the effective range expansion in a two-channel system and extraction of the information on the nature of a near-threshold resonance from the parameters fitted to the experimental data.
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Keywords: exotic hadrons, near-threshold resonance, effective range expansion
PACS: 14.40.Rt, 11.55.Bq, 14.40.Pq () DOI: Citation: Nefediev A V "On the effective range expansion in a multichannel system and compositeness of a near-threshold resonance" Phys. Usp., accepted Received: 30th, March 2022, revised: 27th, June 2022, accepted: 28th, July 2022 Оригинал: Нефедьев А В «О разложении эффективного радиуса в многоканальной системе и молекулярности околопорогового резонанса» УФН, принята к публикации; |
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