Title: | Measurement of exclusive <sup>ρ(770)0</sup> photoproduction in ultraperipheral pPb collisions at √sNN=5.02Te |
Authors: | Sirunyan, AM Tumasyan, A Adam, W Ambrogi, F Asilar, E Bergauer, T Brandstetter, J Dragicevic, M Erö, J Del Valle, AE Flechl, M Frühwirth, R Ghete, VM Hrubec, J Jeitler, M Krammer, N Krätschmer, I Liko, D Madlener, T Mikulec, I Rad, N Rohringer, H Schieck, J Schöfbeck, R Spanring, M Spitzbart, D Taurok, A Waltenberger, W Wittmann, J Wulz, CE Zarucki, M Chekhovsky, V Mossolov, V Gonzalez, JS De Wolf, EA Di Croce, D Janssen, X Lauwers, J Pieters, M Van De Klundert, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Zeid, SA Blekman, F D’Hondt, J De Bruyn, I De Clercq, J Deroover, K Flouris, G Lontkovskyi, D Lowette, S Marchesini, I Moortgat, S Moreels, L Python, Q Skovpen, K Tavernier, S Van Doninck, W Van Mulders, P Van Parijs, I Beghin, D Bilin, B Brun, H Clerbaux, B De Lentdecker, G Delannoy, H Dorney, B Fasanella, G Favart, L Goldouzian, R Grebenyuk, A Kalsi, AK Lenzi, T Luetic, J Moureaux, L Postiau, N Starling, E Thomas, L Velde, CV Vanlaer, P Vannerom, D Wang, Q Cornelis, T Dobur, D Fagot, A Gul, M Khvastunov, I Poyraz, D Roskas, C Trocino, D Tytgat, M Verbeke, W Vermassen, B Vit, M Zaganidis, N Bakhshiansohi, H Bondu, O Brochet, S Bruno, G |
Issue Date: | 21-Aug-2019 |
Publisher: | Springer Verlag |
Citation: | European Physical Journal C, 2019, 79 (8) |
Abstract: | Exclusiveρ(770)0 photoproductionismeasured for the first time in ultraperipheral pPb collisions at√sNN = 5.02TeV with the CMS detector. The cross section σ(γp → ρ(770)0p) is 11.0 ± 1.4(stat) ± 1.0(syst) μb at Wγp = 92.6GeV for photon–proton centre-of-mass energies Wγp between 29 and 213GeV. The differential cross section dσ/d|t| is measured in the interval 0.025 < |t| < 1GeV2 asafunctionof Wγp,wheret isthesquaredfour-momentum transfer at the proton vertex. The results are compared with previousmeasurementsandtheoreticalpredictions.Themeasured cross section σ(γp → ρ(770)0p) has a power-law dependenceonthephoton–protoncentre-of-mass,consistent with electron–proton collision measurements performed at HERA. The Wγp dependence of the exponential slope of the differential cross section dσ/d|t|is also measured. |
URI: | http://bura.brunel.ac.uk/handle/2438/19202 |
DOI: | http://dx.doi.org/10.1140/epjc/s10052-019-7202-9 |
ISSN: | 1434-6044 http://dx.doi.org/10.1140/epjc/s10052-019-7202-9 http://dx.doi.org/10.1140/epjc/s10052-019-7202-9 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers
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