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ρ0 photoproduction in ultraperipheral relativistic heavy ion collisions at √sNN=200 GeV
Physical Review C - Nuclear Physics, 77 (2008), 3; 034910. https://doi.org/10.1103/PhysRevC.77.034910
(STAR Collaboration) Abelev, B. I.; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Zuo, J. X.

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Abelev, B. I., Planinić, M., Poljak, N. i Zuo, J. X. (2008). ρ0 photoproduction in ultraperipheral relativistic heavy ion collisions at √sNN=200 GeV. Physical Review C - Nuclear Physics, 77. (3). doi: 10.1103/PhysRevC.77.034910

Abelev, B. I., et al. "ρ0 photoproduction in ultraperipheral relativistic heavy ion collisions at √sNN=200 GeV." Physical Review C - Nuclear Physics, vol. 77, br. 3, 2008. https://doi.org/10.1103/PhysRevC.77.034910

Abelev, B. I., Mirko Planinić, Nikola Poljak i J. X. Zuo. "ρ0 photoproduction in ultraperipheral relativistic heavy ion collisions at √sNN=200 GeV." Physical Review C - Nuclear Physics 77, br. 3 (2008). https://doi.org/10.1103/PhysRevC.77.034910

Abelev, B. I., et al. (2008) 'ρ0 photoproduction in ultraperipheral relativistic heavy ion collisions at √sNN=200 GeV', Physical Review C - Nuclear Physics, 77(3). doi: 10.1103/PhysRevC.77.034910

Abelev BI, Planinić M, Poljak N, Zuo JX. ρ0 photoproduction in ultraperipheral relativistic heavy ion collisions at √sNN=200 GeV. Physical Review C - Nuclear Physics [Internet]. 2008. [pristupljeno 25.04.2024.];77(3). doi: 10.1103/PhysRevC.77.034910

B. I. Abelev, M. Planinić, N. Poljak i J. X. Zuo, "ρ0 photoproduction in ultraperipheral relativistic heavy ion collisions at √sNN=200 GeV", Physical Review C - Nuclear Physics, vol. 77, br. 3, 2008. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:269837. [Citirano: 25.04.2024.]

Za citiranje koristite ovu mrežnu adresu: https://urn.nsk.hr/urn:nbn:hr:217:269837
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Naslov (engleski)ρ0 photoproduction in ultraperipheral relativistic heavy ion collisions at √sNN=200 GeV
AutorB. I. Abelev
Autor
...
AutorMirko Planinić
Autor
...
AutorNikola Poljak
Autor
...
AutorJ. X. Zuo
KolaboracijaSTAR Collaboration
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Sažetak (engleski)
Photoproduction reactions occur when the electromagnetic field of a relativistic heavy ion interacts with another heavy ion. The STAR Collaboration presents a measurement of ρ^0 and direct π^+π^− photoproduction in ultraperipheral relativistic heavy ion collisions at √sNN=200 GeV. We observe both exclusive photoproduction and photoproduction accompanied by mutual Coulomb excitation. We find a coherent cross section of σ(AuAu→Au^∗Au^∗ρ^0)=530±19(stat.)±57(syst.) mb, in accord with theoretical calculations based on a Glauber approach, but considerably below the predictions of a color dipole model. The ρ^0 transverse momentum spectrum (p^2_T) is fit by a double exponential curve including both coherent and incoherent coupling to the target nucleus; we find σ_inc/σ_coh=0.29±0.03(stat.)±0.08(syst.). The ratio of direct π+π− to ρ^0 production is comparable to that observed in γp collisions at HERA and appears to be independent of photon energy. Finally, the measured ρ^0 spin helicity matrix elements agree within errors with the expected s-channel helicity conservation.
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaPhysical Review C - Nuclear Physics
Brojčani podacivol. 77, br. 3, 034910
p-ISSN0556-2813
e-ISSN1089-490X
DOIhttps://doi.org/10.1103/PhysRevC.77.034910
URN:NBNurn:nbn:hr:217:269837
Datum objave publikacije2008
ProjektŠifra: 119-0982887-1006
Naziv (hrvatski): Istraživanje hadronskih sustava upotrebom relativističkih projektila
Voditelj: Mirko Planinić
Pravna nadležnost: Hrvatska
Financijer: MZOS
Linija financiranja: ZP
URL dokumentahttp://link.aps.org/doi/10.1103/PhysRevC.77.034910
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Zaštićeno autorskim pravom.
Javna napomenaCopyright (2008) by the American Physical Society. Received 21 December 2007; published 31 March 2008.
Datum i vrijeme pohrane2019-10-18 21:10:07