Journal article
Measurement of single-diffractive dijet production in proton–proton collisions at √s = 8 TeV with the CMS and TOTEM experiments
The European Physical Journal C, Vol.80, 1164
2020
DOI: 10.1140/epjc/s10052-020-08562-y
Appears in Diamond Open Access
Abstract
Measurements are presented of the single-diffractive dijet cross section and the diffractive cross section as a function of the proton fractional momentum loss ξ and the four-momentum transfer squared t. Both processes pp→pX and pp→Xp, i.e. with the proton scattering to either side of the interaction point, are measured, where X includes at least two jets; the results of the two processes are averaged. The analyses are based on data collected simultaneously with the CMS and TOTEM detectors at the LHC in proton–proton collisions at s=8Te during a dedicated run with β∗=90m at low instantaneous luminosity and correspond to an integrated luminosity of 37.5nb-1. The single-diffractive dijet cross section σjjpX, in the kinematic region ξ< 0.1 , 0.03<|t|[removed]40Ge, and pseudorapidity | η| < 4.4 , is 21.7±0.9(stat)-3.3+3.0(syst)±0.9(lumi)nb. The ratio of the single-diffractive to inclusive dijet yields, normalised per unit of ξ, is presented as a function of x, the longitudinal momentum fraction of the proton carried by the struck parton. The ratio in the kinematic region defined above, for x values in the range - 2.9 ≤ log 10x≤ - 1.6 , is R=(σjjpX/Δξ)/σjj=0.025±0.001(stat)±0.003(syst), where σjjpX and σjj are the single-diffractive and inclusive dijet cross sections, respectively. The results are compared with predictions from models of diffractive and nondiffractive interactions. Monte Carlo predictions based on the HERA diffractive parton distribution functions agree well with the data when corrected for the effect of soft rescattering between the spectator partons.
Details
- Title: Subtitle
- Measurement of single-diffractive dijet production in proton–proton collisions at √s = 8 TeV with the CMS and TOTEM experiments
- Creators
- CMS collaborationTOTEM collaboration
- Contributors
- M. Alhusseini (Contributor) - University of IowaB Bilki (Contributor) - University of Iowa, Physics and AstronomyW Clarida (Contributor)K Dilsiz (Contributor) - University of Iowa, Physics and AstronomyS. Durgut (Contributor) - University of IowaR. P. Gandrajula (Contributor) - University of IowaM. Haytmyradov (Contributor) - University of IowaV. Khristenko (Contributor) - University of IowaJ-P Merlo (Contributor) - University of IowaA Mestvirishvili (Contributor) - University of Iowa, Physics and AstronomyA Moeller (Contributor) - University of IowaJ Nachtman (Contributor) - University of Iowa, Physics and AstronomyH Ogul (Contributor) - University of Iowa, Physics and AstronomyY Onel (Contributor) - University of Iowa, Physics and AstronomyF Ozok (Contributor) - University of IowaA Penzo (Contributor) - University of Iowa, Physics and AstronomyC. Snyder (Contributor) - University of IowaE Tiras (Contributor) - University of Iowa, Physics and AstronomyJ Wetzel (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- The European Physical Journal C, Vol.80, 1164
- DOI
- 10.1140/epjc/s10052-020-08562-y
- ISSN
- 1434-6052
- Language
- English
- Date published
- 2020
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984546941902771
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