TY - JOUR
T1 - Exclusive electroproduction of two pions at HERA
AU - Abramowicz, Halina
N1 - Publisher Copyright:
© Copyright owned by the author(s).
PY - 2011
Y1 - 2011
N2 - Two pion exclusive electroproduction in the mass range 0.4 < Mππ < 2.5 GeV has been studied with the ZEUS detector using 82 pb-1 of integrated luminosity collected during 1998-2000. The two-pion mass distribution is interpreted in terms of the pion electromagnetic form factor, Fπ(Mππ), assuming that the studied mass range includes the contributions of the ρ, ρ' and ρ" vector meson states. The masses and widths of resonances are obtained and subsequently the Q2 dependence of the cross sections ω(ρ' → ππ)/ω(ρ) and ω(ρ" → ρρ)/ω(ρ) is extracted.
AB - Two pion exclusive electroproduction in the mass range 0.4 < Mππ < 2.5 GeV has been studied with the ZEUS detector using 82 pb-1 of integrated luminosity collected during 1998-2000. The two-pion mass distribution is interpreted in terms of the pion electromagnetic form factor, Fπ(Mππ), assuming that the studied mass range includes the contributions of the ρ, ρ' and ρ" vector meson states. The masses and widths of resonances are obtained and subsequently the Q2 dependence of the cross sections ω(ρ' → ππ)/ω(ρ) and ω(ρ" → ρρ)/ω(ρ) is extracted.
UR - http://www.scopus.com/inward/record.url?scp=85040700802&partnerID=8YFLogxK
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AN - SCOPUS:85040700802
SN - 1824-8039
VL - 2011-July
JO - Proceedings of Science
JF - Proceedings of Science
T2 - 21st International Europhysics Conference on High Energy Physics, EPS-HEP 2011
Y2 - 21 July 2011 through 27 July 2011
ER -