Measurement of the Soft-Drop Jet Mass in pp Collisions at root s = 13 TeV with the ATLAS Detector
Metadatos
Afficher la notice complèteEditorial
American Physical Society
Date
2018-08-28Referencia bibliográfica
Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abidi, S. H., ... & Abreu, R. (2018). Measurement of the Soft-Drop Jet Mass in p p Collisions at s= 13 TeV with the ATLAS Detector. Physical review letters, 121(9), 092001.
Patrocinador
We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS, CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF, and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF, I-CORE and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRC KI, Russian Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZŠ, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC andWallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, the Canada Council, CANARIE, CRC, Compute Canada, FQRNT, and the Ontario Innovation Trust, Canada; EPLANET, ERC, ERDF, FP7, Horizon 2020 and Marie Skłodowska-Curie Actions, European Union; Investissements d’Avenir Labex and Idex, ANR, R´egion Auvergne and Fondation Partager le Savoir, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF; BSF, GIF and Minerva, Israel; BRF, Norway; CERCA Programme Generalitat de Catalunya, Generalitat Valenciana, Spain; the Royal Society and Leverhulme Trust, United Kingdom.Résumé
Jet substructure observables have significantly extended the search program for physics beyond the
standard model at the Large Hadron Collider. The state-of-the-art tools have been motivated by theoretical
calculations, but there has never been a direct comparison between data and calculations of jet substructure
observables that are accurate beyond leading-logarithm approximation. Such observables are significant
not only for probing the collinear regime of QCD that is largely unexplored at a hadron collider, but also
for improving the understanding of jet substructure properties that are used in many studies at the Large
Hadron Collider. This Letter documents a measurement of the first jet substructure quantity at a hadron
collider to be calculated at next-to-next-to-leading-logarithm accuracy. The normalized, differential cross
section is measured as a function of log10ρ2, where ρ is the ratio of the soft-drop mass to the ungroomed jet
transverse momentum. This quantity is measured in dijet events from 32.9 fb−1 of
root s = 13 TeV protonproton
collisions recorded by the ATLAS detector. The data are unfolded to correct for detector effects and
compared to precise QCD calculations and leading-logarithm particle-level Monte Carlo simulations.