Exclusive photoproduction is measured for the first time in ultraperipheral pPb collisions at with the CMS detector. The cross section is b at for photon-proton centre-of-mass energies between 29 and . The differential cross section is measured in the interval as a function of , where is the squared four-momentum transfer at the proton vertex. The results are compared with previous measurements and theoretical predictions. The measured cross section has a power-law dependence on the photon-proton centre-of-mass, consistent with electron-proton collision measurements performed at HERA. The dependence of the exponential slope of the differential cross section is also measured.
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| http://dx.doi.org/10.1140/epjc/s10052-019-7202-9 | DOI Listing |
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Measurement of exclusive photoproduction in ultraperipheral pPb collisions at .
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Exclusive photoproduction is measured for the first time in ultraperipheral pPb collisions at with the CMS detector. The cross section is b at for photon-proton centre-of-mass energies between 29 and . The differential cross section is measured in the interval as a function of , where is the squared four-momentum transfer at the proton vertex.
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