Report/Dissertation / PhD Thesis

PUBDB-2016-02630

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Studying characteristics of diffractive deep inelastic scattering with the ZEUS leading proton spectrometer

Rahn, J. T. (Corresponding author)

1998

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Please use a persistent id in citations: doi:10.3204/PUBDB-2016-02630

Report No.: DESY-THESIS-1998-010; UMI-98-23042

Abstract: The o bS l ! rvation of diffraction in Deep Inela s tic: Scattering (DIS) at the IIERA el ec tr o n - proton collider generated considerahle excitement . This reac:tion provides an opportunit y to s t udy at a parton level the mechanism re s l > onsible for diffractive and elastic readion s in h a dronic: collisions . The ZEUS experiment , equipped with a Leading Proton Spectrometer (LPS) , i s ideally suited to obser v e thi s reaction (cp - + cpX) by detec : ting the proton pin addition to the electron c and photon fragment X. The reaction is approximately expe> - nential in the momentum transfer sq uared t with an ex!>onential slope b = u.u ± o.u~~ : ~ Gey2 . The inclusive cross section , eXIHessed as Ff(~), has been measured in the kinematic . region 5 < Q2 < 20 GeV 2 and ; (.11' < 0 . 0:3 . An analysis of this structure fundion indicates that the soft Pomeron trajectory is most al>l>ropriate , although shrinkage has not yet been c onnrmed . The ; ( . 11' dependence is observed to follow a power behavior Ff(~) e x ; (11' ' at t = -0 . 16 Gey2 , with a ntted to 1 . 08 ± .Ou~ : ?g. The inclusive event shape variables demon- s trate a nnal state similar to the hadronic . s ystem prod uced in c+ c- collisions at similar energy s cales . These conclusions are discussed in the context of other analyses of the same reaction at IIERA , with further discussion of the r>roblems of background and event selection fa c et : 1 by measurements not based on the observation of the nnal proton.

Keyword(s): thesis ; positron p: colliding beams ; positron p: deep inelastic scattering ; diffraction: structure function ; parametrization ; rapidity: gap ; momentum spectrum: pomeron ; event shape analysis ; differential cross section: momentum transfer ; differential cross section: slope ; forward detector ; ZEUS ; experimental results ; DESY HERA Stor ; bibliography ; approx. 300 GeV-cms ; THESIS

Note: University of California Santa Cruz, Diss., 1998

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Contributing Institute(s):

1. Bibliothek und Dokumentation (L)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. No specific instrument

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Database coverage:

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