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Measurement of jet production cross sections in deep-inelastic ep scattering at HERA

The European Physical Journal C2017Vol. 77(4)

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Vladimir Andreev, A. Baghdasaryan, K. Begzsuren, A. Belousov, A. E. Bolz, V. Boudry, O. Brandt, V. Brisson, D. Britzger, A. Buniatyan, A. Bylinkin, L. Bystritskaya, A. Campbell, K. B. Cantun Avila, K. Černý, V. Chekelian, J.G. Contreras, J. Cvach, J.B. Dainton, K. Daum, C. Diaconu, M. Dobre, V. Dodonov, G. Eckerlin, S. Egli, E. Elsen, L. Favart, A. Fedotov, J. Feltesse, J. Ferencei, M. Fleischer, A. Fomenko, E. Gabathuler, J. Gayler, S. Ghazaryan, L. Goerlich, N. Gogitidze, M. Gouzevitch, C. Grab, A. Grebenyuk, T. Greenshaw, G. Grindhammer, D. Haidt, R. C. W. Henderson, J. Hladký, D. Hoffmann, R. Horisberger, T. Hreus, F. Huber, M. Jacquet, X. Janssen, H. Jung, M. Kapichine, J. Katzy, C. Kiesling, M. Klein, C. Kleinwort, R. Kogler, P. Kostka, J. Kretzschmar, D. Krücker, K. Krüger, M. P. J. Landon, W. Lange, P. Laycock, A. Lebedev, S. Levonian, K. Lipka, B. List, Jenny List, B. Łobodziński, E. Malinovski, H.-U. Martyn, S. J. Maxfield, A. Mehta, A. Meyer, H. Meyer, J. Meyer, S. Mikocki, A. Morozov, Katharina Müller, T. Naumann, P. R. Newman, C. Niebuhr, G. Nowak, J.E. Olsson, D. Ozerov, C. Pascaud, G. D. Patel, E. Pérez, A. Petrukhin, I. Pićurić, H. Pirumov, D. Pitzl, R. Plačakytė, R. Polifka, V. Radescu, N. Raičević, T. Ravdandorj, P. Reimer, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, M. Rotaru, D. Šálek, D. P. C. Sankey, M. Sauter, E. Sauvan, S. Schmitt, L. Schoeffel, A. Schöning, J. Alcaraz Maestre, S. Shushkevich, Y. Soloviev, P. Sopicki, D. South, V. Spaskov, A. Specka, M. Steder, B. Stella, U. Straumann, T. Sýkora, P. D. Thompson, D. Traynor, P. Truöl, I. Tsakov, B. Tseepeldorj, A. Valkárová, C. Vallée, P. Van Mechelen, Y. Vazdik, D. Wegener, E. Wünsch, J. Žáček, Z. Zhang, R. Žlebčík, H. Zohrabyan, F. Zomer

Abstract

Abstract A precision measurement of jet cross sections in neutral current deep-inelastic scattering for photon virtualities $$5.5<Q^2 <80\,\mathrm {GeV}^2 $$ 5.5<Q2<80GeV2 and inelasticities $$0.2<y<0.6$$ 0.2<y<0.6 is presented, using data taken with the H1 detector at HERA, corresponding to an integrated luminosity of $$290\,\mathrm {pb}^{-1}$$ 290pb-1 . Double-differential inclusive jet, dijet and trijet cross sections are measured simultaneously and are presented as a function of jet transverse momentum observables and as a function of $$Q^2$$ Q2 . Jet cross sections normalised to the inclusive neutral current DIS cross section in the respective $$Q^2$$ Q2 -interval are also determined. Previous results of inclusive jet cross sections in the range $$150<Q^2 <15{,}000\,\mathrm {GeV}^2 $$ 150<Q2<15,000GeV2 are extended to low transverse jet momenta $$5<P_\mathrm{T}^\mathrm{jet} <7\,\mathrm {GeV} $$ 5<PTjet<7GeV . The data are compared to predictions from perturbative QCD in next-to-leading order in the strong coupling, in approximate next-to-next-to-leading order and in full next-to-next-to-leading order. Using also the recently published H1 jet data at high values of $$Q^2$$ Q2 , the strong coupling constant $$\alpha _s(M_Z)$$ αs(MZ) is determined in next-to-leading order.

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Abstract

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