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Träfflista för sökning "WFRF:(Lebiedowicz P.) srt2:(2011)"

Sökning: WFRF:(Lebiedowicz P.) > (2011)

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1.
  • Lebiedowicz, P., et al. (författare)
  • Exclusive production of chi(c)(0(+)) meson and its measurement in the pi(+)pi(-) channel
  • 2011
  • Ingår i: Nuclear physics B, Proceedings supplements. - : Elsevier BV. - 0920-5632 .- 1873-3832. ; 219-220, s. 284-287
  • Tidskriftsartikel (refereegranskat)abstract
    • We report on the results of a theoretical study of the central exclusive production of scalar chi(c)(0(+)) meson via chi(c0) -> pi(+)pi(-) decay in high-energy hadron collisions at the RHIC, Tevatron and LHC. The corresponding amplitude for exclusive double-diffractive chi(c0) meson production was obtained within the k(t)-factorization approach including virtualities of active gluons and the cross section is calculated with unintegrated gluon distribution functions (UGDFs) known from the literature. The four-body pp -> pp pi(+)pi(-) reaction constitutes an irreducible background to the exclusive chi(c0) meson production. We include the absorption effects due to proton-proton interaction and pion-pion rescattering. Several differential distributions for pp((p) over bar) -> pp((p) over bar)chi(c0) process, including the absorptive corrections, were calculated. The influence of kinematical cuts on the signal-to-background ratio is investigated.
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2.
  • Lebiedowicz, P., et al. (författare)
  • Measurement of exclusive production of scalar chi(c0) meson in proton-(anti)proton collisions via chi(c0) -> pi(+)pi(-) decay
  • 2011
  • Ingår i: Physics Letters B. - : Elsevier BV. - 0370-2693 .- 1873-2445. ; 701:4, s. 434-444
  • Tidskriftsartikel (refereegranskat)abstract
    • We consider a measurement of exclusive production of scalar chi(c)(0(++)) meson in the proton-proton collisions at LHC and RHIC and in the proton-antiproton collisions at the Tevatron via chi(c0) -> pi(+)pi(-) decay. The corresponding amplitude for exclusive double-diffractive chi(c0) meson production was obtained within the k(t)-factorization approach including virtualities of active gluons and the corresponding cross section is calculated with unintegrated gluon distribution functions (UGDFs) known from the literature. The four-body pp -> pp pi(+)pi(-) reaction constitutes an irreducible background to the exclusive chi(c0) meson production. We include absorption effects due to proton-proton interaction and pion-pion rescattering. We calculate several differential distributions for pp((p) over bar) -> pp((p) over bar)chi(c0) process including the absorptive corrections. The influence of kinematical cuts on the signal-to-background ratio is investigated. Corresponding experimental consequences are discussed.
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  • Resultat 1-2 av 2
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tidskriftsartikel (2)
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refereegranskat (2)
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Szczurek, A. (2)
Lebiedowicz, P. (2)
Pasechnik, Roman (1)
Pasechnik, R. (1)
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Uppsala universitet (2)
Lunds universitet (2)
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Engelska (2)
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Naturvetenskap (2)
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2011 (2)Ta bort avgränsningen

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