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Model-independent extraction of the pole and Breit-Wigner resonance parameters


Ceci, Saša; Korolija, Milorad; Zauner, Branimir
Model-independent extraction of the pole and Breit-Wigner resonance parameters // Physical Review Letters, 111 (2013), 11; 112004-1 doi:10.1103/PhysRevLett.111.112004 (međunarodna recenzija, članak, znanstveni)


Naslov
Model-independent extraction of the pole and Breit-Wigner resonance parameters

Autori
Ceci, Saša ; Korolija, Milorad ; Zauner, Branimir

Izvornik
Physical Review Letters (0031-9007) 111 (2013), 11; 112004-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Scattering matrix; resonances; Hadron masses; Z bosons
(Scattering matrix; resonances; Hadron masses; Z boson)

Sažetak
We show that a slightly modified Breit-Wigner formula can successfully describe the total cross section even for the broad resonances, from light $\rho(770)$ to the heavy Z boson. In addition to mass, width, and branching fraction, we include another resonance parameter that turns out to be directly related to the pole residue phase. The new formula has two mathematically equivalent forms: one with the pole, and the other with the Breit-Wigner parameters.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
098-0000000-3195 - Hadronska fizika između eksperimenata i QCD modela (Alfred Švarc, )

Ustanove
Institut "Ruđer Bošković", Zagreb

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
  • MEDLINE


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