Collins asymmetries in inclusive charged KK and Kπ pairs produced in e^+e^− annihilation
Abstract
We present measurements of Collins asymmetries in the inclusive process e^+e^− → h_1h_2X, h_1h_2 = KK, Kπ, ππ, at the center-of-mass energy of 10.6 GeV, using a data sample of 468 fb^(−1) collected by the BABAR experiment at the PEP-II B factory at SLAC National Accelerator Center. Considering hadrons in opposite thrust hemispheres of hadronic events, we observe clear azimuthal asymmetries in the ratio of unlike sign to like sign, and unlike sign to all charged h_1h_2 pairs, which increase with hadron energies. The Kπ asymmetries are similar to those measured for the ππ pairs, whereas those measured for high-energy KK pairs are, in general, larger.
Additional Information
© 2015 American Physical Society. Received 23 June 2015; published 22 December 2015. We are grateful for the excellent luminosity and machine conditions provided by our PEP-II2 colleagues, and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (U.S.), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MEC (Spain), and STFC (U.K.). Individuals have received support from the Marie Curie EIF (European Union) and the A. P. Sloan Foundation.Attached Files
Published - PhysRevD.92.111101.pdf
Submitted - 1506.05864v1.pdf
Supplemental Material - SuppMat.pdf
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Additional details
- Eprint ID
- 63724
- Resolver ID
- CaltechAUTHORS:20160115-151138278
- Department of Energy (DOE)
- NSF
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Commissariat à l'Energie Atomique (CEA)
- Bundesministerium für Bildung und Forschung (BMBF)
- Istituto Nazionale di Fisica Nucleare (INFN)
- Stichting voor Fundamenteel Onderzoek der Materie (FOM)
- Norwegian Research Council (NFR)
- Ministry of Education and Science of the Russian Federation
- Science and Technology Facilities Council (STFC)
- Marie Curie Fellowship
- Alfred P. Sloan Foundation
- Centre National de la Recherche Scientifique (CNRS)
- Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)
- Deutsche Forschungsgemeinschaft (DFG)
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2016-01-15Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field