On Kaon production in e+e- and Semi-inclusive DIS reactions

Abstract

We consider semi-inclusive unpolarized DIS for the production of charged kaons and the different possibilities to test the conventionally used assumptions s-\bar=0 and D_d^{K^+-K^-}=0. The considered tests have the advantage that they do not require any knowledge of the fragmentation functions. We also show that measurements of both charged and neutral kaons would allow the determination of the kaon FFs D_q^{K^++K^-} solely from SIDIS measurements, and discuss the comparison of (D_u-D_d)^{K^+-K^-} obtained independently in SIDIS and e+e- reactions. All analysis are performed in LO and NLO in QCD. The feasibility of the tests to HERMES SIDIS data is considered.

arXiv comment7 pages, NLO analysis for all presented tests and feasibility to HERMES data added

References in corpus (5)

• NNLO global parton analysis
• Fragmentation Functions from Flavour-inclusive and Flavour-tagged e^+e^- Annihilations
• QCD Analysis of Unpolarized and Polarized Lambda - Baryon Production in Leading and Next-to-Leading Order
• Sea quark and gluon polarization in the nucleon at NLO accuracy
• Fragmentation functions from semi-inclusive DIS pion production and implications for the polarized parton densities

Cited by in corpus (10)

• The hadronization of partons
• Parton-distribution functions for the pion and kaon in the gauge-invariant nonlocal chiral-quark model
• Fragmentation functions and parton distribution functions for the pion with the nonlocal interactions
• Towards a model independent approach to fragmentation functions
• Fragmentation and quark distribution functions for the pion and kaon with explicit flavor-SU(3)-symmetry breaking
• The non-singlet kaon fragmentation function from e^+e^- kaon production
• The quark-jet contribution to the fragmentation functions for the pion and kaon with the nonlocal interactions
• The difference cross sections of unpolarized SIDIS with transverse momentum dependence
• Gluon fragmentation functions in the Nambu-Jona-Lasinio model
• Charm fragmentation functions in the Nambu-Jona-Lasinio model