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Related papers: $\Lambda_c^+$ fragmentation functions from pQCD ap…

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We present new sets of nonperturbative fragmentation functions for D^0, D^+, and D_s^+ mesons as well as for Lambda_c^+ baryons, both at leading and next-to-leading order in the MSbar factorization scheme with five massless quark flavors.…

High Energy Physics - Phenomenology · Physics 2009-11-11 Bernd A. Kniehl , Gustav Kramer

The main aim of this paper is to present new sets of non-perturbative fragmentation functions (FFs) for $D^0$ and $D^+$ mesons at next-to-leading (NLO) and, for the first time, at next-to-next-to-leading order (NNLO) in the…

High Energy Physics - Phenomenology · Physics 2019-12-17 Maral Salajegheh , S. Mohammad Moosavi Nejad , Maryam Soleymaninia , Hamzeh Khanpour , S. Atashbar Tehrani

We present a determination of fragmentation functions (FFs) for the octet baryon $\Xi ^-/\bar{\Xi}^+$ from data for single inclusive electron-positron annihilation. Our parametrization in this QCD analysis is provided in terms of a Neural…

High Energy Physics - Phenomenology · Physics 2022-11-01 Maryam Soleymaninia , Hadi Hashamipour , Hamzeh Khanpour , Hubert Spiesberger

We present MAPFF1.0_Lambda, the first global analysis at next-to-next-to-leading order in perturbative QCD of the collinear unpolarised fragmentation functions of Lambda hyperons. The fit is based on data from single-inclusive…

High Energy Physics - Phenomenology · Physics 2026-05-08 Valerio Bertone , Alessia Bongallino , Amedeo Chiefa , Miguel G. Echevarria , Gunar Schnell

We present nonperturbative fragmentation functions (FFs) for bottom-flavored ($B$) hadrons both at next-to-leading (NLO) and, for the first time, at next-to-next-to-leading order (NNLO) in the $\overline{\mathrm{MS}}$ factorization scheme…

High Energy Physics - Phenomenology · Physics 2019-06-12 Maral Salajegheh , S. Mohammad Moosavi Nejad , Hamzeh Khanpour , Bernd A. Kniehl , Maryam Soleymaninia

The current paper presents a determination of $K^0_S$ and $\Lambda/\bar{\Lambda}$ fragmentation functions (FFs) from QCD analysis of single-inclusive electron-positron annihilation process (SIA). Our FFs determinations are performed at…

High Energy Physics - Phenomenology · Physics 2020-12-29 Maryam Soleymaninia , Hamed Abdolmaleki , Hamzeh Khanpour

It is well-known that the dominant mechanism to produce hadronic bound states with large transverse momentum is fragmentation. This mechanism is described by the fragmentation functions (FFs) which are the universal and process-independent…

High Energy Physics - Phenomenology · Physics 2016-10-19 S. M. Moosavi Nejad , P. Sartipi Yarahmadi

In Phys. Rev. D 58, 014014 (1998) and 71, 094013 (2005), we determined non-perturbative D^0, D^+, D^{*+}, D_s^+, and Lambda_c^+ fragmentation functions, both at leading and next-to-leading order in the MS-bar factorization scheme, by…

High Energy Physics - Phenomenology · Physics 2014-11-18 Bernd A. Kniehl , Gustav Kramer

A perturbative QCD calculation of heavy flavor quark fragmentation into heavy flavor baryons is developed along the lines of corresponding heavy meson models. The non-perturbative formation of the baryon is accomplished by implementing the…

High Energy Physics - Phenomenology · Physics 2009-10-30 Anatoly D. Adamov , Gary R. Goldstein

We present, for the first time, a set of next-to-next-to-leading order (NNLO) fragmentation functions (FFs) describing the production of charmed-meson $D^{*+}$ from partons. Exploiting the universality and scaling violations of FFs, we…

High Energy Physics - Phenomenology · Physics 2018-04-19 Maryam Soleymaninia , Hamzeh Khanpour , S. Mohammad Moosavi Nejad

We study inclusive $\Lambda_c^{\pm}$-baryon production in $pp$ collisions in the general-mass variable-flavor number scheme and compare with data from the LHCb, ALICE and CMS collaborations. We perform a new fit of the $c \to \Lambda_c^+$…

High Energy Physics - Phenomenology · Physics 2020-07-01 B. A. Kniehl , G. Kramer , I. Schienbein , H. Spiesberger

The fragmentation functions for $c$ or $\bar{b}$ quark to $B_c$ or $B_c^*$ meson are derived up to QCD next-to-leading order (NLO). They are further computed numerically and presented in figures precisely. In order to reach a higher…

High Energy Physics - Phenomenology · Physics 2020-01-01 Xu-Chang Zheng , Chao-Hsi Chang , Tai-Fu Feng , Xing-Gang Wu

We propose a novel method for extracting non-singlet (NS) fragmentation functions (FFs) of light charged hadrons from charge asymmetries measured in hadron fragmentation, using data from both single-inclusive electron-positron annihilation…

High Energy Physics - Phenomenology · Physics 2026-04-06 Jun Gao , ChongYang Liu , Bin Zhou

The recent experimental developments require a more precise theoretical study of weak decays of heavy baryon $\Lambda_b^0$. In this work, we provide an updated and systematic analysis of both the semi-leptonic and nonleptonic decays of…

High Energy Physics - Phenomenology · Physics 2019-04-03 Jie Zhu , Zheng-Tao Wei , Hong-Wei Ke

We analyze experimental data for the production of Lambda baryons in e^+e^- annihilation in terms of scale dependent, QCD evolved, Lambda fragmentation functions. Apart from the vast majority of the data for which the polarization of an…

High Energy Physics - Phenomenology · Physics 2009-10-30 D. de Florian , M. Stratmann , W. Vogelsang

The processes of D^{(*)}-mesons and \Lambda_c-baryons production in e^+e^--annihilation at 10.58 GeV and 91.18 GeV energies are concerned. At the 10.58 GeV energy the production of charmed particles via the B-mesons decays is also…

High Energy Physics - Phenomenology · Physics 2010-12-30 Alexey Novoselov

The correct description of the hadron's structure requires understanding how quarks and gluons form the observable hadrons and how they are distributed within them. Two key nonperturbative quantities encapsulate this information: parton…

High Energy Physics - Phenomenology · Physics 2025-12-17 Gustavo B. Bopsin , Bruno El-Bennich , Gastão Krein , Fernando E. Serna , Roberto C. da Silveira

In this paper, we present ${\tt SGK18}$ FFs, a first global QCD analysis of parton-to-{\it unidentified} charged hadrons fragmentation functions (FFs) at next-to-next-to-leading order (NNLO) accuracy in perturbative QCD. This analysis is…

High Energy Physics - Phenomenology · Physics 2018-10-04 Maryam Soleymaninia , Muhammad Goharipour , Hamzeh Khanpour

We present NNFF1.0, a new determination of the fragmentation functions (FFs) of charged pions, charged kaons, and protons/antiprotons from an analysis of single-inclusive hadron production data in electron-positron annihilation. This…

High Energy Physics - Phenomenology · Physics 2017-09-13 Valerio Bertone , Stefano Carrazza , Nathan P. Hartland , Emanuele R. Nocera , Juan Rojo

We discuss the quark parton structure of the $\Lambda$ baryon and the fragmentation of quarks into $\Lambda$ baryons. We show that the hyperfine interaction, responsible for the $\Delta$-$N$ and $\Sigma^0$-$\Lambda$ mass splittings, leads…

High Energy Physics - Phenomenology · Physics 2010-02-17 C. Boros , J. T. Londergan , A. W. Thomas
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