Journal Article

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

Contreras, J. G., Ferencei, J., Gayler, J., Raicevic, N., Olsson, J. E., Katzy, J., Robmann, P., Pitzl, D., Zohrabyan, H., Hladkỳ, J., Kiesling, C., Brisson, V., Truöl, P., Diaconu, C., Goerlich, L., Ravdandorj, T., Chekelian, V., Lipka, K., Radescu, V., Pirumov, H., Belousov, A., Meyer, J., Boudry, V., Lange, W., Polifka, R., Lebedev, A., Šálek, D., Horisberger, R., Meyer, A. B., Sauter, M., Fedotov, A., Bolz, A., Rotaru, M., Roosen, R., Tsakov, I., Schoeffel, L., Laycock, P., Thompson, P. D., Campbell, A. J., Steder, M., Feltesse, J., Mehta, A., Vallée, C., Wünsch, E., Henderson, R. C. W., Favart, L., Kapichine, M., Patel, G. D., Fleischer, M., Dobre, M., Kostka, P., Shushkevich, S., Bylinkin, A., Sykora, T., Brandt, G., Buniatyan, A., Reimer, P., Zomer, F., Plačakytė, R., Zhang, Z., Schöning, A., Britzger, D., Meyer, H., Jung, H., Sopicki, P., Avila, K. B. Cantun, Fomenko, A., Newman, P. R., Soloviev, Y., Andreev, V., Cvach, J., Eckerlin, G., Cerny, K., Perez, E., Gouzevitch, M., Grindhammer, G., Egli, S., Maxfield, S. J., Sauvan, E., Kleinwort, C., Greenshaw, T., Nowak, G., Ozerov, D., Wegener, D., Huber, F., List, B., Straumann, U., List, J., Janssen, X

2017

Overview

A precision measurement of jet cross sections in neutral current deep-inelastic scattering for photon virtualities 5.5 < Q 2 < 80 GeV 2 and inelasticities 0.2 < y < 0.6 is presented, using data taken with the H1 detector at HERA, corresponding to an integrated luminosity of 290 pb - 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 . Jet cross sections normalised to the inclusive neutral current DIS cross section in the respective Q 2 -interval are also determined. Previous results of inclusive jet cross sections in the range 150 < Q 2 < 15 , 000 GeV 2 are extended to low transverse jet momenta 5 < P T jet < 7 GeV . 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 , the strong coupling constant α s ( M Z ) is determined in next-to-leading order.

• Publisher: Springer Berlin Heidelberg
• Subject: Astronomy / Astrophysics and Cosmology / Elementary Particles / Hadrons / Heavy Ions / Measurement Science and Instrumentation / Nuclear Energy / Nuclear Physics / Physics / Physics and Astronomy / Quantum Field Theories / Quantum Field Theory / Regular Article - Experimental Physics / String Theory