Pregled bibliografske jedinice broj: 640273
Model-independent extraction of the pole and Breit-Wigner resonance parameters
Model-independent extraction of the pole and Breit-Wigner resonance parameters // Physical review letters, 111 (2013), 11; 112004, 5 doi:10.1103/PhysRevLett.111.112004 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 640273 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
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, 5
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
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
Projekti:
MZOS-098-0000000-3195 - Hadronska fizika između eksperimenata i QCD modela (Švarc, Alfred, MZOS ) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb
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
- MEDLINE
