Development and validation of HERWIG 7 tunes from CMS underlying-event measurements

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 collect...

Full description

Saved in:
Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2021-04, Vol.81 (4), p.312-312
Main Authors: 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.
Format: Article
Language:English
Subjects:
Analysis
Astronomy
Astrophysics and Cosmology
Bias
Collisions (Nuclear physics)
Distribution (Probability theory)
Distribution functions
Elementary Particles
Hadrons
Heavy Ions
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Parameters
Particle collisions
Partons
Physics
Physics and Astronomy
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Protons
Quantum Field Theories
Quantum Field Theory
Quarks
Regular - Experimental Physics
Regular Article - Experimental Physics
String Theory
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-021-08949-5