Zobrazeno 1 - 10
of 274
pro vyhledávání: '"Deep Inelastic Scattering or Small-X Physics"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 11, Pp 1-30 (2024)
Abstract The assumption of factorization lies at the core of calculations of medium effects on observables computable in perturbative Quantum Chromodynamics. In this work we examine this assumption, for which we propose a setup to study hard processe
Externí odkaz:
https://doaj.org/article/99ede502a7024fa3b2fd4dc188d405ce
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 11, Pp 1-25 (2024)
Abstract Quantitatively connecting properties of parton distribution functions (PDFs, or parton densities) to the theoretical assumptions made within the QCD analyses which produce them has been a longstanding problem in HEP phenomenology. To confron
Externí odkaz:
https://doaj.org/article/6dfd38c0fc3342d79fe76db3f3882974
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-32 (2024)
Abstract We continue exploring the Unitary Toy Model (UTM) as a playground for high energy collisions in QCD. Our new approach is based on the diagonalization of the evolution Hamiltonian. Part of the spectrum can be identified with intercepts of dre
Externí odkaz:
https://doaj.org/article/a108c53a2bc741a8aa2394d157bc5945
Autor:
R. Boussarie, Y. Mehtar-Tani
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-41 (2024)
Abstract We revisit the high energy semi-classical description of the exclusive processes DVCS, TCS, and Double DVCS by explicitly keeping track of the Feynman x dependence in both the hard and the hadronic matrix elements. This is achieved by a modi
Externí odkaz:
https://doaj.org/article/562e7987c1f443c6b47c61f29f3eacf3
Autor:
I. Balitsky, G. A. Chirilli
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-18 (2024)
Abstract High-energy scattering in pQCD in the Regge limit is described by the evolution of Wilson lines governed by the BK equation [1, 2]. In the leading order, the BK equation is conformally invariant and the eigenfunctions of the linearized BFKL
Externí odkaz:
https://doaj.org/article/33220fbb49034228b008868edcc06a02
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-21 (2024)
Abstract We present a new prescription to account for heavy quark mass effects in the determination of parton distribution functions (PDFs) based on the FONLL scheme. Our prescription makes explicit use of the freedom to choose the number of active f
Externí odkaz:
https://doaj.org/article/7e2d3b5e61874274bfaae64ab97a36c3
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-51 (2024)
Abstract We include the quark to gluon and gluon to quark shock-wave transition operators into the small Bjorken-x evolution equations for helicity in the flavor-singlet channel derived earlier in [1–3]. While such transitions do not affect the lar
Externí odkaz:
https://doaj.org/article/075c43c38d044d75a994c4148462bb4d
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-32 (2024)
Abstract We present a next-to-leading order perturbative QCD calculation of dimuon production in neutrino-nucleus collisions. This process is typically calculated by assuming it to be proportional to inclusive charm production, which requires an effe
Externí odkaz:
https://doaj.org/article/970640e6e93145db80861b21c3c9a123
Autor:
The MAP collaboration, Alessandro Bacchetta, Valerio Bertone, Chiara Bissolotti, Giuseppe Bozzi, Matteo Cerutti, Filippo Delcarro, Marco Radici, Lorenzo Rossi, Andrea Signori
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-45 (2024)
Abstract 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
Externí odkaz:
https://doaj.org/article/f8122fe02c674c8e85d98ce23c562fcc
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-42 (2024)
Abstract We establish a sum rule that connects fracture functions to nucleon energy-energy correlators (NEECs) in a one-to-one correspondence. Using this sum rule, we study the energy pattern in the target fragmentation region of deep inelastic scatt
Externí odkaz:
https://doaj.org/article/5fc35b11c09c4e4f89c3569d4b46fd5e