Flavor dependence of unpolarized quark Transverse Momentum Distributions from a global fit

التفاصيل البيبلوغرافية
العنوان: Flavor dependence of unpolarized quark Transverse Momentum Distributions from a global fit
المؤلفون: Bacchetta, Alessandro, Bertone, Valerio, Bissolotti, Chiara, Bozzi, Giuseppe, Cerutti, Matteo, Delcarro, Filippo, Radici, Marco, Rossi, Lorenzo, Signori, Andrea
سنة النشر: 2024
المجموعة: High Energy Physics - Phenomenology
Nuclear Experiment
Nuclear Theory
مصطلحات موضوعية: High Energy Physics - Phenomenology, Nuclear Experiment, Nuclear Theory
الوصف: We present an extraction of the unpolarized transverse-momentum-dependent parton distribution and fragmentation functions that takes into account possible differences between quark flavors and final-state hadrons. The extraction is based on experimental measurements from Drell-Yan processes and semi-inclusive deep-inelastic scattering, whose combination is essential to distinguish flavor differences. The analysis is carried out at N$^3$LL accuracy. The extracted flavor-dependent distributions give a very good description of the data ($\chi^2/N_{\rm dat} = 1.08$). The resulting uncertainties take fully into account also the uncertainties in the determination of the corresponding collinear distributions.
Comment: 32 pages, 25 (multiple) figures, RevTeX4
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2405.13833
رقم الأكسشن: edsarx.2405.13833
قاعدة البيانات: arXiv