Pregled bibliografske jedinice broj: 817974
Generalization of the model-independent Laurent–Pietarinen single-channel pole- extraction formalism to multiple channels
Generalization of the model-independent Laurent–Pietarinen single-channel pole- extraction formalism to multiple channels // Physics letters. B, 755 (2016), 452-455 doi:10.1016/j.physletb.2016.02.058 (međunarodna recenzija, članak, znanstveni)
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Naslov
Generalization of the model-independent Laurent–Pietarinen single-channel pole- extraction formalism to multiple channels
Autori
Švarc, Alfred ; Hadžimehmedović, Mirza ; Osmanović, Hedim ; Stahov, Jugoslav ; Tiator, Lothar ; Workman, Ron L.
Izvornik
Physics letters. B (0370-2693) 755
(2016);
452-455
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
partial wave analysis ; pole parameters ; model independent extraction
Sažetak
A method to extract resonance pole information from single-channel partial-wave amplitudes based on a Laurent (Mittag-Leffler) expansion and conformal mapping techniques has recently been developed. This method has been applied to a number of reactions and provides a model- independent extraction procedure which is particularly useful in cases where a set of amplitudes is available only at discrete energies. This method has been generalized and applied to the case of a multi-channel fit, where several sets of amplitudes are analyzed simultaneously. The importance of unitarity constraints is discussed. The final result provides a powerful, model-independent tool for analyzing partial-wave amplitudes of coupled or connected channels based entirely on the concepts of analyticity and unitarity.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
