Modeling dihadron fragmentation functions

Abstract

We present a model for dihadron fragmentation functions, describing the fragmentation of a quark into two unpolarized hadrons. We tune the parameters of our model to the output of the PYTHIA event generator for two-hadron semi-inclusive production in deep inelastic scattering at HERMES. Once the parameters of the model are fixed, we make predictions for other unknown fragmentation functions and for a single-spin asymmetry in the azimuthal distribution of pi+ pi- pairs in semi-inclusive deep inelastic scattering on a transversely polarized target at HERMES and COMPASS. Such asymmetry could be used to measure the quark transversity distribution function.

16 pages, 10 figures

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• Transversity distributions in the nucleon in the large-N_c limit
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Cited by in corpus (40)

• Parton Fragmentation Functions
• First extraction of valence transversities in a collinear framework
• First Extraction of Transversity from a Global Analysis of Electron-Proton and Proton-Proton Data
• Observation of transverse polarization asymmetries of charged pion pairs in e+e- annihilation near sqrt s=10.58 GeV
• First glances at the transversity parton distribution through dihadron fragmentation functions
• Transverse spin effects in hadron-pair production from semi-inclusive deep inelastic scattering
• First extraction of Interference Fragmentation Functions from e+e- data
• Evidence for a Transverse Single-Spin Asymmetry in Leptoproduction of pi+pi- Pairs
• A high-statistics measurement of transverse spin effects in dihadron production from muon-proton semi-inclusive deep-inelastic scattering
• Evolution equations for extended dihadron fragmentation functions
• Asymmetries involving dihadron fragmentation functions: from DIS to e+e- annihilation
• Transverse spin effects in hard semi-inclusive collisions
• Exploring universality of transversity in proton-proton collisions
• Dihadron Fragmentation Functions within the NJL-jet Model
• Studies of Azimuthal Modulations in Two Hadron Fragmentation of a Transversely Polarised Quark
• Dihadron fragmentation functions for large invariant mass
• Di-hadron fragmentation and mapping of the nucleon structure
• Extraction of the higher-twist parton distribution $e(x)$ from CLAS data
• Transversity from two pion interference fragmentation
• Calculating Dihadron Fragmentation Functions in the NJL-jet model
• Production of vector mesons in the String+${}^3{P}_0$ model of polarized quark fragmentation
• Dihadron fragmentation functions in the quark-jet model: Transversely polarized quarks
• Fragmentation and quark distribution functions for the pion and kaon with explicit flavor-SU(3)-symmetry breaking
• Single-spin asymmetry in dihadron production in SIDIS off the longitudinally polarized nucleon target
• Realistic estimate of valence transversity distributions from inclusive dihadron production
• Dihadron Fragmentation Functions from the NJL-jet model and their QCD Evolution
• Double spin asymmetry in dihadron production in SIDIS off the longitudinally polarized nucleon target
• Sivers Effect in Dihadron Semi-Inclusive Deep Inelastic Scattering
• The quark-jet contribution to the fragmentation functions for the pion and kaon with the nonlocal interactions
• Analogies between hadron-in-jet and dihadron fragmentation
• Detecting correlated di-hadron pairs: about the extraction of transversity and beyond
• Single spin asymmetry $A_{UL}^{\sin ({\varphi }_h-{\varphi }_R)}$ in dihadron semi-inclusive DIS
• The cos${\varphi }_R$ asymmetry of dihadron production in double longitudinally polarized SIDIS
• Dihadron Fragmentation Functions and Transversity
• Single spin asymmetry $A_{UL}^{\sin (2{\varphi }_h-2{\varphi }_R)}$ in dihadron semi-inclusive DIS
• COMPASS Results on Transverse Single-Spin Asymmetries
• Dihadron fragmentation functions and their relevance for transverse spin studies
• Dihadron production in semi-inclusive DIS from transversely polarized protons
• Spin Physics at COMPASS
• Beam Spin Asymmetries of ${\pi }^{+}{\pi }^0$ Dihadrons from SIDIS at CLAS12