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    Krammer, N.; Pitters, F. M.; Postiau, N.; Roskas, C.; Misheva, M.; Ahmad, M.; Liao, H.; Zhang, S.; Ban, Y.; Razis, P. A.; Dewanjee, R. K.; Eerola, P.; Kim, M. S.; Tuominiemi, J.; Besancon, M.; Couderc, F.; Denegri, D.; Buchot Perraguin, A.; Hakimi, A.; Fontaine, J.-C.; Carle, A.; Fackeldey, P.; Meyer, A.; Mondal, S.; Kasem, A.; Mussgiller, A.; Tholen, H.; Benecke, A.; De Leo, K.; Stadie, H.; Heidecker, C.; Katkov, I.; Karasavvas, D.; Mandal, K.; Meena, M.; Sharan, M.; Pugliese, G.; Marcellini, S.; Seidita, R.; Malvezzi, S.; Paganoni, M.; Castaldi, R.; Verdini, P. G.; Mariotti, C.; Lee, H.; Kazana, M.; Zhokin, A.; Cirkovic, P.; Brochero Cifuentes, J. A.; Soares, M. S.; Alvarez Gonzalez, B.; Kailasapathy, B.; Sonnadara, D. U. J.; Bendavid, J.; Hegeman, J.; Kieseler, J.; Meschi, E.; Orsini, L.; Pantaleo, F.; Pfeiffer, A.; Tavolaro, V. R.; Ristic, B.; Asavapibhop, B.; Kaya, M.; Manolopoulos, K.; Bainbridge, R.; Malik, S.; Winterbottom, D.; Hobson, P. R.; Sawant, S.; Dominguez, A.; Buccilli, A.; Henderson, C.; Rumerio, P.; West, C.; Benelli, G.; Yu, D.; Derdzinski, M.; Newman, H. B.; Tao, Z.; Banerjee, S.; Gutsche, O.; Klima, B.; Ravera, F.; Guerrero, D.; Alhusseini, M.; Swartz, M.; Modak, A.; Wang, L.; Mcginn, C.; Iashvili, I.; Pekkanen, J.; Jung, A. W.; Wang, F.; Heindl, M.; Laflotte, I.; Thomas, S.; Spanier, S.; Kim, H.; Kunori, S.

    The European physical journal. C, Particles and fields, 04/2021, Letnik: 81, Številka: 4
    Journal Article

    This paper presents new sets of parameters (“tunes”) for the underlying-event model of the H E R W I G 7 event generator. These parameters control the description of multiple-parton interactions (MPI) and colour reconnection in H E R W I G 7 , and are obtained from a fit to minimum-bias data collected by the CMS experiment at s = 0.9 , 7, and 13 Te . The tunes are based on the NNPDF 3.1 next-to-next-to-leading-order parton distribution function (PDF) set for the parton shower, and either a leading-order or next-to-next-to-leading-order PDF set for the simulation of MPI and the beam remnants. Predictions utilizing the tunes are produced for event shape observables in electron-positron collisions, and for minimum-bias, inclusive jet, top quark pair, and Z and W boson events in proton-proton collisions, and are compared with data. Each of the new tunes describes the data at a reasonable level, and the tunes using a leading-order PDF for the simulation of MPI provide the best description of the data.