{ital J}/{ital {psi}} and {ital {psi}}(2{ital S}) Production in p{bar p} Collisions at {radical}({ital s})=1.8 TeV
Journal Article
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· Physical Review Letters
OSTI ID:628676
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- Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna (Italy)
- Brandeis University, Waltham, Massachusetts 02264 (United States)
- University of California at Los Angeles, Los Angeles, California 90024 (United States)
- University of Chicago, Chicago, Illinois 60638 (United States)
- Duke University, Durham, North Carolina 28708 (United States)
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
- University of Florida, Gainesville, Florida 33611 (United States)
- Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati (Italy)
- University of Geneva, CH-1211 Geneva 4 (Switzerland)
We present a study of J/{psi} and {psi}(2S) production in p{bar p} collisions, at {radical}(s)=1.8 TeV with the CDF detector at Fermilab. The J/{psi} and {psi}(2S) mesons are reconstructed using their {mu}{sup +}{mu}{sup {minus}} decay modes. We have measured the inclusive production cross section for both mesons as a function of their transverse momentum in the central region, {vert_bar}{eta}{vert_bar}{lt}0.6 . We also measure the fraction of these events originating from b hadrons. We thus extract individual cross sections for J/{psi} and {psi}(2S) mesons from b -quark decays and prompt production. We find a large excess (approximately a factor of 50) of direct {psi}(2S) production compared with predictions from the color singlet model. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 628676
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 4 Vol. 79; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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Production of {ital J}/{ital {psi}} Mesons from {ital {chi}}{sub {ital c}} Meson Decays in p{bar p} Collisions at {radical}({ital s})=1.8 TeV
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Tue Jul 01 00:00:00 EDT 1997
· Physical Review Letters
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OSTI ID:628677
Inclusive J/{psi}, {psi} (2S) and b-quark production in {bar p}p collisions at {radical}s = 1.8 TeV
Conference
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Sat Oct 31 23:00:00 EST 1992
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OSTI ID:10113337