Cover Image

Invariant jet mass measurements in pp collisions at √s = 200  GeV at RHIC

Show other versions (93)

We present the first inclusive measurements of the invariant and softdrop jet mass in proton-proton collisions at √s=200 GeV at STAR. The measurements are fully corrected for detector effects, and reported differentially in both the jet transverse momentum and jet radius parameter. We compare the me...

Full description

Saved in:
Bibliographic Details
Main Authors: Abdallah, Mohamed Samy (Author) , Deppner, Ingo Martin (Author) , Herrmann, Norbert (Author) , Söhngen, Yannick (Author) , Weidenkaff, Philipp (Author)
Corporate Author: STAR Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 15 September 2021
In: Physical review
Year: 2021, Volume: 104, Issue: 5, Pages: 1-13
ISSN:2470-0029
DOI:10.1103/PhysRevD.104.052007
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.104.052007
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.104.052007
Get full text
Author Notes:M.S. Abdallah, I.M. Deppner, N. Herrmann, Y. Söhngen, P.C. Weidenkaff, und weitere 384 (STAR Collaboration, )
Description
Summary:We present the first inclusive measurements of the invariant and softdrop jet mass in proton-proton collisions at √s=200 GeV at STAR. The measurements are fully corrected for detector effects, and reported differentially in both the jet transverse momentum and jet radius parameter. We compare the measurements to established leading-order Monte Carlo event generators and find that STAR-tuned pythia-6 reproduces the data, while LHC tunes of pythia-8 and herwig-7 do not agree with the data, providing further constraints on parameter tuning. Finally, we observe that softdrop grooming, for which the contribution of wide-angle nonperturbative radiation is suppressed, shifts the jet mass distributions into closer agreement with the partonic jet mass as determined by both pythia-8 and a next-to-leading-logarithmic accuracy perturbative QCD calculation. These measurements complement recent LHC measurements in a different kinematic region, as well as establish a baseline for future jet mass measurements in heavy-ion collisions at RHIC.
Item Description:Im Titel steht der Buchstabe s unter dem Wurzelsymbol
Gesehen am 12.11.2021
Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.104.052007

Similar Items