Details

Autor(en) / Beteiligte

• Adamová, D.
• Ahmad, S.
• Ahn, S. U.
• Akindinov, A.
• Antinori, F.
• Apadula, N.
• Arata, C.
• Bailung, Y.
• Balbino, A.
• Baldisseri, A.
• Bartels, C.
• Basu, S.
• Bielčík, J.
• Biro, G.
• Bombara, M.
• Borissov, A.
• Camacho, J. M. M.
• Canedo, F. D. M.
• Cho, S.
• Ciacco, M.
• Colella, D.
• Cot, C.
• de Cuveland, J.
• De Falco, A.
• Dzalaiova, N.
• Ehlers, R. J.
• Fan, W.
• Ferrero, C.
• Feuillard, V. J. G.
• Gargiulo, C.
• Gasik, P.
• Germain, M.
• Ghosh, C.
• Giubellino, P.
• Giubilato, P.
• Grosso, R.
• Gundem, T.
• Helstrup, H.
• Huhta, L. M.
• Isakov, A.
• Kaewjai, J.
• Kalinak, P.
• Karavicheva, T.
• Keijdener, D. L. D.
• Khuntia, A.
• Kim, S.
• Kroesen, M.
• Kweon, M. J.
• Lakrathok, A.
• Larionov, P.
• Lévai, P.
• Lietava, R.
• Lindenstruth, V.
• López Torres, E.
• Lunardon, M.
• Margagliotti, G. V.
• Markert, C.
• Masera, M.
• Mazuecos, A. L.
• Melikyan, Y.
• Menchaca-Rocha, A.
• Mulligan, J. D.
• Nania, R.
• Nesbo, S. V.
• Nikulin, S.
• Nystrand, J.
• Patra, R. N.
• Planinic, M.
• Reckziegel, C.
• Rescakova, Z.
• Ricci, R.
• Richter, M.
• Riedel, A. A.
• Rogoschinski, T. S.
• Rubini, N.
• Rui, R.
• Rzesa, W.
• Sahoo, R.
• Schmidt, M.
• Schmier, A. R.
• Schukraft, J.
• Serebryakov, D.
• Shirinkin, S.
• Sinha, T.
• Storehaug, I.
• Sumberia, V.
• Tauro, A.
• Tkacik, M.
• Tkacik, T.
• Varga, Z.
• Vergara Limón, S.
• Verweij, M.
• Villalobos Baillie, O.
• Virgili, T.
• Vislavicius, V.
• Weiglhofer, F. T.
• Wilkinson, J.
• Willems, G. A.
• Zhalov, M.
• Zhang, X.

Titel

Measurement of the angle between jet axes in pp collisions at $$ \sqrt{s} $$ = 5.02 TeV

Ist Teil von

• The journal of high energy physics, 2023-07, Vol.2023 (7), Article 201

Ort / Verlag

United States: Springer

Erscheinungsjahr

2023

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• A bstract This article reports measurements of the angle between differently defined jet axes in pp collisions at $$ \sqrt{s} $$ s = 5 . 02 TeV carried out by the ALICE Collaboration. Charged particles at midrapidity are clustered into jets with resolution parameters R = 0 . 2 and 0.4. The jet axis, before and after Soft Drop grooming, is compared to the jet axis from the Winner-Takes-All (WTA) recombination scheme. The angle between these axes, ∆ R axis , probes a wide phase space of the jet formation and evolution, ranging from the initial high-momentum-transfer scattering to the hadronization process. The ∆ R axis observable is presented for 20 < $$ {p}_{\textrm{T}}^{\textrm{ch}\ \textrm{jet}} $$ p T ch jet < 100 GeV/ c , and compared to predictions from the PYTHIA 8 and Herwig 7 event generators. The distributions can also be calculated analytically with a leading hadronization correction related to the non-perturbative component of the Collins-Soper-Sterman (CSS) evolution kernel. Comparisons to analytical predictions at next-to-leading-logarithmic accuracy with leading hadronization correction implemented from experimental extractions of the CSS kernel in Drell-Yan measurements are presented. The analytical predictions describe the measured data within 20% in the perturbative regime, with surprising agreement in the non-perturbative regime as well. These results are compatible with the universality of the CSS kernel in the context of jet substructure.