https://scholars.lib.ntu.edu.tw/handle/123456789/574830
標題: | Invariant-mass and fractional-energy dependence of inclusive production of dihadrons in e + e ? annihilation at √s = 10.58 GeV | 作者: | Seidl R. WEI-SHU HOU et al. |
公開日期: | 2017 | 卷: | 96 | 期: | 3 | 來源出版物: | Physical Review D | 摘要: | The inclusive cross sections for dihadrons of charged pions and kaons (e+e? → hhX) in electron-positron annihilation are reported. They are obtained as a function of the total fractional energy and invariant mass for any di-hadron combination in the same hemisphere as defined by the thrust event-shape variable and its axis. Since same-hemisphere dihadrons can be assumed to originate predominantly from the same initial parton, di-hadron fragmentation functions are probed. These di-hadron fragmentation functions are needed as an unpolarized baseline in order to quantitatively understand related spin-dependent measurements in other processes and to apply them to the extraction of quark transversity distribution functions in the nucleon. The di-hadron cross sections are obtained from a 655 fb?1 data sample collected at or near the ??4S? resonance with the Belle detector at the KEKB asymmetric-energy e?e? collider. ? 2017 American Physical Society. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85049865379&doi=10.1103%2fPhysRevD.96.032005&partnerID=40&md5=5c413305cd272e52e23fc806e7e12a8d https://scholars.lib.ntu.edu.tw/handle/123456789/574830 |
ISSN: | 24700010 | DOI: | 10.1103/PhysRevD.96.032005 |
顯示於: | 物理學系 |
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