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

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Andreev, V, Baghdasaryan, A, Begzsuren, K, Belousov, A, Bolz, A, Boudry, V, Brandt, G, Brisson, V, Britzger, D, Buniatyan, A et al (show 129 more authors) , Bylinkin, A, Bystritskaya, L, Campbell, AJ, Avila, KB Cantun, Cerny, K, Chekelian, V, Contreras, JG, Cvach, J, Dainton, JB, Daum, K, Diaconu, C, Dobre, M, Dodonov, V, Eckerlin, G, Egli, S, Elsen, E, Favart, L, Fedotov, A, Feltesse, J, Ferencei, J, Fleischer, M, Fomenko, A, Gabathuler, E, Gayler, J, Ghazaryan, S, Goerlich, L, Gogitidze, N, Gouzevitch, M, Grab, C, Grebenyuk, A, Greenshaw, T ORCID: 0000-0003-1897-5810, Grindhammer, G, Haidt, D, Henderson, RCW, Hladkỳ, J, Hoffmann, D, Horisberger, R, Hreus, T, Huber, F, Jacquet, M, Janssen, X, Jung, H, Kapichine, M, Katzy, J, Kiesling, C, Klein, M, Kleinwort, C, Kogler, R, Kostka, P, Kretzschmar, J ORCID: 0000-0002-8515-1355, Krücker, D, Krüger, K, Landon, MPJ, Lange, W, Laycock, P, Lebedev, A, Levonian, S, Lipka, K, List, B, List, J, Lobodzinski, B, Malinovski, E, Martyn, H-U, Maxfield, SJ ORCID: 0000-0002-2133-1269, Mehta, A ORCID: 0000-0003-2619-9743, Meyer, AB, Meyer, H, Meyer, J, Mikocki, S, Morozov, A, Müller, K, Naumann, Th, Newman, PR, Niebuhr, C, Nowak, G, Olsson, JE, Ozerov, D, Pascaud, C, Patel, GD, Perez, E, Petrukhin, A, Picuric, I, Pirumov, H, Pitzl, D, Plačakytė, R, Polifka, R, Radescu, V, Raicevic, N, Ravdandorj, T, Reimer, P, Rizvi, E, Robmann, P, Roosen, R, Rostovtsev, A, Rotaru, M, Šálek, D, Sankey, DPC, Sauter, M, Sauvan, E, Schmitt, S, Schoeffel, L, Schöning, A, Sefkow, F, Shushkevich, S, Soloviev, Y, Sopicki, P, South, D, Spaskov, V, Specka, A, Steder, M, Stella, B, Straumann, U, Sykora, T, Thompson, PD, Traynor, D, Truöl, P, Tsakov, I, Tseepeldorj, B, Valkárová, A, Vallée, C, Van Mechelen, P, Vazdik, Y, Wegener, D, Wünsch, E, Žáček, J, Zhang, Z, Žlebčík, R, Zohrabyan, H and Zomer, F (2017) Measurement of jet production cross sections in deep-inelastic ep scattering at HERA. The European Physical Journal C, 77 (4).

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Abstract

<jats:title>Abstract</jats:title><jats:p>A precision measurement of jet cross sections in neutral current deep-inelastic scattering for photon virtualities<jats:inline-formula><jats:alternatives><jats:tex-math>$$5.5&lt;Q^2 &lt;80\,\mathrm {GeV}^2 $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>5.5</mml:mn><mml:mo>&lt;</mml:mo><mml:msup><mml:mi>Q</mml:mi><mml:mn>2</mml:mn></mml:msup><mml:mo>&lt;</mml:mo><mml:mn>80</mml:mn><mml:mspace /><mml:msup><mml:mrow><mml:mi>GeV</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msup></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>and inelasticities<jats:inline-formula><jats:alternatives><jats:tex-math>$$0.2&lt;y&lt;0.6$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>0.2</mml:mn><mml:mo>&lt;</mml:mo><mml:mi>y</mml:mi><mml:mo>&lt;</mml:mo><mml:mn>0.6</mml:mn></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>is presented, using data taken with the H1 detector at HERA, corresponding to an integrated luminosity of<jats:inline-formula><jats:alternatives><jats:tex-math>$$290\,\mathrm {pb}^{-1}$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>290</mml:mn><mml:mspace /><mml:msup><mml:mrow><mml:mi>pb</mml:mi></mml:mrow><mml:mrow><mml:mo>-</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>. 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<jats:inline-formula><jats:alternatives><jats:tex-math>$$Q^2$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mi>Q</mml:mi><mml:mn>2</mml:mn></mml:msup></mml:math></jats:alternatives></jats:inline-formula>. Jet cross sections normalised to the inclusive neutral current DIS cross section in the respective<jats:inline-formula><jats:alternatives><jats:tex-math>$$Q^2$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mi>Q</mml:mi><mml:mn>2</mml:mn></mml:msup></mml:math></jats:alternatives></jats:inline-formula>-interval are also determined. Previous results of inclusive jet cross sections in the range<jats:inline-formula><jats:alternatives><jats:tex-math>$$150&lt;Q^2 &lt;15{,}000\,\mathrm {GeV}^2 $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>150</mml:mn><mml:mo>&lt;</mml:mo><mml:msup><mml:mi>Q</mml:mi><mml:mn>2</mml:mn></mml:msup><mml:mo>&lt;</mml:mo><mml:mn>15</mml:mn><mml:mo>,</mml:mo><mml:mn>000</mml:mn><mml:mspace /><mml:msup><mml:mrow><mml:mi>GeV</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msup></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>are extended to low transverse jet momenta<jats:inline-formula><jats:alternatives><jats:tex-math>$$5&lt;P_\mathrm{T}^\mathrm{jet} &lt;7\,\mathrm {GeV} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>5</mml:mn><mml:mo>&lt;</mml:mo><mml:msubsup><mml:mi>P</mml:mi><mml:mrow><mml:mi>T</mml:mi></mml:mrow><mml:mi>jet</mml:mi></mml:msubsup><mml:mo>&lt;</mml:mo><mml:mn>7</mml:mn><mml:mspace /><mml:mi>GeV</mml:mi></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>. 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<jats:inline-formula><jats:alternatives><jats:tex-math>$$Q^2$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mi>Q</mml:mi><mml:mn>2</mml:mn></mml:msup></mml:math></jats:alternatives></jats:inline-formula>, the strong coupling constant<jats:inline-formula><jats:alternatives><jats:tex-math>$$\alpha _s(M_Z)$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>α</mml:mi><mml:mi>s</mml:mi></mml:msub><mml:mrow><mml:mo>(</mml:mo><mml:msub><mml:mi>M</mml:mi><mml:mi>Z</mml:mi></mml:msub><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>is determined in next-to-leading order.</jats:p>

Item Type:	Article
Depositing User:	Symplectic Admin
Date Deposited:	21 Apr 2017 13:36
Last Modified:	04 Sep 2023 14:48
DOI:	10.1140/epjc/s10052-017-4717-9
Open Access URL:	https://www-h1.desy.de/psfiles/papers/desy16-200.p...
Related URLs:	Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3007043