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Title: Inclusive cross sections for pairs of identified light charged hadrons and for single protons in e + e - at s = 10.58 GeV

Journal Article · · Physical Review. D, Particles, Fields, Gravitation and Cosmology
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We report the first double differential cross sections of two charged pions and kaons (e+e- → hhX) in electron-positron annihilation as a function of the fractional energies of the two hadrons for any charge and hadron combination. The dependence of these di-hadron cross sections on the topology (same, opposite-hemisphere or anywhere) is also studied with the help of the event shape variable combinations directly shed light on the contributing fragmentation functions. For example, we find energies where disfavored fragmentation is expected to be suppressed. These di-hadron results are the KEKB asymmetric-energy e+e- collider. Extending the previously published single-pion and single-kaon cross sections, single-proton (e+e- → pX) cross sections are extracted from a 159 fb-1 data sub-sample.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
Belle Collaboration
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1234790
Report Number(s):
PNNL-SA-115023; PRVDAQ; KA2201020
Journal Information:
Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 92, Issue 9; ISSN 1550-7998
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

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