QCD studies at SLD: Identified hadron production in jets of different flavors
- Rutgers Univ., Piscataway, NJ (US)
- Nagoya Univ. (Japan)
- Tohoku Univ., Sendai (Japan); and others
The authors have measured the differential cross sections for the production of {pi}{sup {+-}}, K{sup {+-}}, K{sup 0}, K{sup *}(892), {phi}(1020), p and {Lambda} in hadronic Z{sup 0} decays and in subsets of flavor-tagged Z{sup 0} {yields} light-flavor (u{bar u}, d{bar d}, or s{bar s}), Z{sup 0} {yields} c{bar c} and Z{sup 0} {yields} b{bar b} events. Charged hadrons were identified with the SLD Cherenkov Ring Imaging Detector. A vertex detector was employed to select flavor-enriched samples, and the polarized electron beam from SLC was used to tag quark and antiquark jets. The authors observes a flavor dependence in the hadron fragmentation functions. They also present evidence for leading particle production in hadronic decays of the Z{sup 0} boson to light-flavor jets and a direct measurement of the strangeness suppression factor {gamma}{sub s}.
- Research Organization:
- Stanford Univ., Stanford Linear Accelerator Center, CA (US); Boston Univ., MA (US); Univ. of California, Santa Barbara, CA (US); Univ. of California, Santa Cruz, CA (US); Colorado State Univ., Fort Collins, CO (US); Univ. of Colorado, Boulder, CO (US); Univ. of Illinois, Urbana, IL (US); Lawrence Berkeley Lab., CA (US); Univ. of Massachusetts, Amherst, MA (US); Massachusetts Inst. of Tech., Cambridge, MA (US); Univ. of Oregon, Eugene, OR (US); Univ. of Tennessee, Knoxville, TN (US); Univ. of Wisconsin, Madison, WI (US); Yale Univ., New Haven, CT (US)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (US); National Science Foundation, Washington, DC (US); United Kingdom Particle Physics and Astronomy Research Council (United Kingdom); Korea Science and Engineering Foundation (Korea, Republic of) (US)
- DOE Contract Number:
- AC03-76SF00515; FG02-91ER40676; FG03-91ER40618; FG03-92ER40689; FG03-93ER40788; FG02-91ER40672; FG02-91ER40677; AC03-76SF00098; FG02-92ER40715; FC02-94ER40818; FG03-96ER40969; FG02-91ER40627; FG02-95ER40896; FG02-92ER40704
- OSTI ID:
- 664467
- Report Number(s):
- SLAC-PUB-7639; CONF-9707114-; ON: DE98059132; CNN: Grant NSF PHY-91-13428; Grant NSF PHY-89-21320; Grant NSF PHY-92-04239; Grant NSF PHY-95-10439; Grant NSF PHY-88-19316; Grant NSF PHY-92-03212; TRN: US200305%%630
- Resource Relation:
- Journal Volume: 64; Journal Issue: 1-3; Conference: International workshop in high energy physics: Euroconference on quantum photodynamics: QCD'97, Montpellier (FR), 07/03/1997--07/08/1997; Other Information: Supercedes report DE98059132; PBD: Sep 1997; PBD: 1 Sep 1997
- Country of Publication:
- United States
- Language:
- English
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