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Energy flow and rapidity gaps between jets in photoproduction at HERA

Adloff et al, C.

The European physical journal. C, Particles and fields, 2002-08, Vol.24 (4), p.517-527 [Periódico revisado por pares]

Heidelberg: Springer Nature B.V

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  • Título:
    Energy flow and rapidity gaps between jets in photoproduction at HERA
  • Autor: Adloff et al, C.
  • Assuntos: Energy flow ; Energy gap ; Fysik ; High Energy Physics - Experiment ; Jets ; Longitude ; Natural Sciences ; Naturvetenskap ; Photons ; Photoproduction ; Physical Sciences ; Physics ; Protons ; Separation ; Subatomic Physics ; Subatomär fysik
  • É parte de: The European physical journal. C, Particles and fields, 2002-08, Vol.24 (4), p.517-527
  • Descrição: Dijet events in photon-proton collisions in which there is a large pseudorapidity separation \(\Delta \eta > 2.5\) between the two highest \(E_{T}\) jets are studied with the H1 detector at HERA. The inclusive dijet cross sections are measured as functions of the longitudinal momentum fractions of the proton and photon which participate in the production of the jets, \(x_{p}^{jets}\) and \(x_{\gamma}^{jets}\) respectively, \(\Delta \eta\), the pseudorapidity separation between the two highest \(E_T\) jets, and \(E_T^{gap}\), the total summed transverse energy between the jets. Rapidity gap events are defined as events in which \(E_T^{gap}\) is less than \(E_T^{cut}\), for \(E_T^{cut}\) varied between 0.5 and 2.0 GeV. The fraction of dijet events with a rapidity gap is measured differentially in \(\Delta \eta\), \(x_{p}^{jets}\) and \(x_{\gamma}^{jets}\). An excess of events with rapidity gaps at low values of \(E_T^{cut}\) is observed above the expectation from standard photoproduction processes. This excess can be explained by the exchange of a strongly interacting colour singlet object between the jets.
  • Editor: Heidelberg: Springer Nature B.V
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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