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We evaluate the QED corrections due to initial state radiation (ISR) to associated Higgs boson production in electron-positron ($e^+ e^-$) annihilation at typical energies of interest for the measurement of the Higgs properties at future…

High Energy Physics - Phenomenology · Physics 2018-01-17 Mario Greco , Guido Montagna , Oreste Nicrosini , Fulvio Piccinini , Gabriele Volpi

We present new sets of proton fragmentation functions describing the production of protons from the gluon and each of the quarks, obtained by a global fit to all relevant data sets extracted from the single-inclusive electron-positron…

High Energy Physics - Phenomenology · Physics 2016-10-19 S. M. Moosavi Nejad , M. Soleymaninia , A. Maktoubian

We compute the twist-three fragmentation contribution to the transverse single spin asymmetry (SSA) in light hadron production $p^\uparrow p\to hX$ and $p^\uparrow A\to hX$ including the gluon saturation effect in the unpolarized…

High Energy Physics - Phenomenology · Physics 2017-01-18 Yoshitaka Hatta , Bo-Wen Xiao , Shinsuke Yoshida , Feng Yuan

We investigate the resummation of large logarithmic perturbative corrections to hadron production in electron-positron annihilation and semi-inclusive deep-inelastic scattering. We find modest, but significant, enhancements of hadron…

High Energy Physics - Phenomenology · Physics 2015-06-12 Daniele P. Anderle , Felix Ringer , Werner Vogelsang

Power corrections to exclusive processes are usually calculated using models for twist-four distribution amplitudes (DA) which are based on the leading-order terms in the conformal expansion. In this work we develop a different approach…

High Energy Physics - Phenomenology · Physics 2010-04-05 Vladimir M. Braun , Einan Gardi , Stefan Gottwald

Within the collinear twist-3 framework, we study the single-spin asymmetry (SSA) in collisions between unpolarized protons and transversely polarized protons with focus on the fragmentation term. The fragmentation mechanism must be analyzed…

High Energy Physics - Phenomenology · Physics 2016-10-05 A. Metz , D. Pitonyak

Large double-logarithmic corrections are induced by soft gluon emissions near threshold in the semi-inclusive $e^+e^-$ annihilation (SIA) distributions, and must be resummed to all-orders in perturbation theory for reliable theoretical…

High Energy Physics - Phenomenology · Physics 2024-11-19 Zhen Xu , Hua Xing Zhu

We present analytic all-order results for the highest three threshold logarithms of the space-like and time-like off-diagonal splitting functions and the corresponding coefficient functions for inclusive deep-inelastic scattering (DIS) and…

High Energy Physics - Phenomenology · Physics 2016-02-17 A. A. Almasy , N. A. Lo Presti , A. Vogt

We calculate the differential cross section for the unpolarized semi-inclusive deeply inelastic scattering (SIDIS) process $e^-+N \to e^-+q+X$ in leading order (LO) of perturbative QCD and up to twist-4 in power corrections and study in…

High Energy Physics - Phenomenology · Physics 2011-03-22 Yu-kun Song , Jian-hua Gao , Zuo-tang Liang , Xin-Nian Wang

We present results on NLO electroweak (EW) corrections to multiple massive boson production processes at a future muon collider. Inclusive cross sections with $\mathcal{O}(\alpha)$ corrections for processes for up to four bosons in the…

High Energy Physics - Phenomenology · Physics 2023-01-18 Pia Bredt , Wolfgang Kilian , Jürgen Reuter , Pascal Stienemeier

We study the single spin asymmetry (SSA) for the pion production in semi-inclusive deep inelastic scattering, $ep^\uparrow\to e\pi X$, in the framework of the collinear factorization. We derive the complete cross section formula associated…

High Energy Physics - Phenomenology · Physics 2008-11-26 Hisato Eguchi , Yuji Koike , Kazuhiro Tanaka

We study the transverse polarization of hyperons produced in semi-inclusive deep inelastic scattering, $ep\to e\Lambda^\uparrow X$, in the framework of the collinear twist-3 factorization. The cross section from the twist-3 distribution…

High Energy Physics - Phenomenology · Physics 2022-04-06 Yuji Koike , Kazuki Takada , Sumire Usui , Kenta Yabe , Shinsuke Yoshida

We study the single transverse-spin asymmetry for inclusive light-hadron productions in the proton-proton collision, $\pphx$ ($h=\pi,K,\eta$), for the RHIC kinematics based on the twist-3 mechanism in the collinear factorization. The…

High Energy Physics - Phenomenology · Physics 2011-06-24 Koichi Kanazawa , Yuji Koike

We reanalyze the factorization theorems for Drell-Yan process and for deep inelastic scattering near threshold, as constructed in the framework of the soft-collinear effective theory (SCET), from a new, consistent perspective. In order to…

High Energy Physics - Phenomenology · Physics 2018-05-30 Junegone Chay , Chul Kim

In this paper we investigate the impact of the higher - twist effects, resummed by the non - linear approaches for the QCD dynamics, on the inclusive observables that will be measured in future electron - ion colliders. We assume a…

High Energy Physics - Phenomenology · Physics 2023-02-09 Yan B. Bandeira , Victor P. Goncalves

We use techniques from soft-collinear effective theory (SCET) to derive renormalization-group improved predictions for single-particle inclusive (1PI) observables in top-quark pair production at hadron colliders. In particular, we study the…

High Energy Physics - Phenomenology · Physics 2015-05-27 V. Ahrens , A. Ferroglia , M. Neubert , B. D. Pecjak , L. L. Yang

We have compared the existing experimental data on the leading power corrections to the structure functions $F_2(x,Q^2), F_3(x,Q^2)$, and $F_L(x,Q^2)$ with the IR-renormalon model predictions for higher-twist contributions. Our analysis…

High Energy Physics - Phenomenology · Physics 2014-11-17 M. Maul , E. Stein , A. Schäfer , L. Mankiewicz

This preprint has been superseded by (A. Courtoy, A. S. Miramontes, H. Avakian, M. Mirazita, and S. Pisano, Phys. Rev. D 106, 014027 (2022), 2203.14975). The latter should be consulted and referred to for the extraction of the $e(x)$ PDF.…

High Energy Physics - Phenomenology · Physics 2022-10-07 A. Courtoy

We show that the ratio of different structure functions have a maximum which depends on energy. We argue, using Golec-Biernat and Wusthoff model, that these maxima are the certain functions of the saturation scale. The analysis of leading…

High Energy Physics - Phenomenology · Physics 2009-10-31 E. Gotsman , E. Levin , U. Maor , L. McLerran , K. Tuchin

We discuss hadron mass corrections and threshold resummation for deep-inelastic scattering $\ell N\rightarrow\ell' X$ and semi-inclusive annihilation $e^+e^-\rightarrow h X$ processes, and provide a prescription how to consistently combine…

High Energy Physics - Phenomenology · Physics 2015-03-05 Alberto Accardi , Daniele P. Anderle , Felix Ringer