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Measurement of np r arrow d. pi. sup 0 cross sections very near threshold

We have measured {ital np}{r arrow}{ital d}{pi}{sup 0} cross sections at eleven beam energies within 16 MeV of threshold. Total cross sections are only 0.67{plus minus}0.10 of the value which has been generally accepted for {ital s}-wave pion production strength near threshold. The differential cros...

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Published in:	Physical review letters 1990-01, Vol.64:2
Main Authors:	Hutcheon, D.A., Korkmaz, E., Moss, G.A., Abegg, R., Davison, N.E., Edwards, G.W.R., Greeniaus, L.G., Mack, D., Miller, C.A., Olsen, W.C., van Heerden, I.J., Yanlin, Y.
Format:	Article
Language:	English
Subjects:	645102 - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties 651220 - Nuclear Properties & Reactions, A=1-5, Experimental BARYON-BARYON INTERACTIONS BARYONS BASIC INTERACTIONS BOSONS CROSS SECTIONS DATA DATA ANALYSIS DELTA BARYONS DELTA-1232 BARYONS DEUTERIUM DIFFERENTIAL CROSS SECTIONS ELECTROMAGNETIC INTERACTIONS ELEMENTARY PARTICLES ENERGY RANGE EXPERIMENTAL DATA FERMIONS HADRON-HADRON INTERACTIONS HADRONS HYDROGEN ISOTOPES INFORMATION INTERACTIONS ISOTOPES LIGHT NUCLEI MEASURING INSTRUMENTS MESON-BARYON INTERACTIONS MESONS MEV RANGE MEV RANGE 100-1000 N BARYONS NUCLEAR PHYSICS AND RADIATION PHYSICS NUCLEI NUCLEON-NUCLEON INTERACTIONS NUMERICAL DATA ODD-ODD NUCLEI P WAVES PARTIAL WAVES PARTICLE IDENTIFICATION PARTICLE INTERACTIONS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PION-DEUTERON INTERACTIONS PIONS PIONS NEUTRAL PROTON-NEUTRON INTERACTIONS PROTON-NUCLEON INTERACTIONS PSEUDOSCALAR MESONS S WAVES SPECTROMETERS STABLE ISOTOPES TOTAL CROSS SECTIONS
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container_title	Physical review letters
container_volume	64:2
creator	Hutcheon, D.A. Korkmaz, E. Moss, G.A. Abegg, R. Davison, N.E. Edwards, G.W.R. Greeniaus, L.G. Mack, D. Miller, C.A. Olsen, W.C. van Heerden, I.J. Yanlin, Y.
description	We have measured {ital np}{r arrow}{ital d}{pi}{sup 0} cross sections at eleven beam energies within 16 MeV of threshold. Total cross sections are only 0.67{plus minus}0.10 of the value which has been generally accepted for {ital s}-wave pion production strength near threshold. The differential cross sections are anisotropic at only 1 MeV (c.m.) above threshold. Our results are compared to {pi}{sup +}d{r arrow}pp data and to predictions of two models.
doi_str_mv	10.1103/PhysRevLett.64.176
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Total cross sections are only 0.67{plus minus}0.10 of the value which has been generally accepted for {ital s}-wave pion production strength near threshold. The differential cross sections are anisotropic at only 1 MeV (c.m.) above threshold. 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Total cross sections are only 0.67{plus minus}0.10 of the value which has been generally accepted for {ital s}-wave pion production strength near threshold. The differential cross sections are anisotropic at only 1 MeV (c.m.) above threshold. 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Korkmaz, E. ; Moss, G.A. ; Abegg, R. ; Davison, N.E. ; Edwards, G.W.R. ; Greeniaus, L.G. ; Mack, D. ; Miller, C.A. ; Olsen, W.C. ; van Heerden, I.J. ; Yanlin, Y.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-osti_scitechconnect_71626883</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1990</creationdate><topic>645102 - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties</topic><topic>651220 - Nuclear Properties & Reactions, A=1-5, Experimental</topic><topic>BARYON-BARYON INTERACTIONS</topic><topic>BARYONS</topic><topic>BASIC INTERACTIONS</topic><topic>BOSONS</topic><topic>CROSS SECTIONS</topic><topic>DATA</topic><topic>DATA ANALYSIS</topic><topic>DELTA BARYONS</topic><topic>DELTA-1232 BARYONS</topic><topic>DEUTERIUM</topic><topic>DIFFERENTIAL CROSS SECTIONS</topic><topic>ELECTROMAGNETIC INTERACTIONS</topic><topic>ELEMENTARY PARTICLES</topic><topic>ENERGY RANGE</topic><topic>EXPERIMENTAL DATA</topic><topic>FERMIONS</topic><topic>HADRON-HADRON INTERACTIONS</topic><topic>HADRONS</topic><topic>HYDROGEN ISOTOPES</topic><topic>INFORMATION</topic><topic>INTERACTIONS</topic><topic>ISOTOPES</topic><topic>LIGHT NUCLEI</topic><topic>MEASURING INSTRUMENTS</topic><topic>MESON-BARYON INTERACTIONS</topic><topic>MESONS</topic><topic>MEV RANGE</topic><topic>MEV RANGE 100-1000</topic><topic>N BARYONS</topic><topic>NUCLEAR PHYSICS AND RADIATION PHYSICS</topic><topic>NUCLEI</topic><topic>NUCLEON-NUCLEON INTERACTIONS</topic><topic>NUMERICAL DATA</topic><topic>ODD-ODD NUCLEI</topic><topic>P WAVES</topic><topic>PARTIAL WAVES</topic><topic>PARTICLE IDENTIFICATION</topic><topic>PARTICLE INTERACTIONS</topic><topic>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</topic><topic>PION-DEUTERON INTERACTIONS</topic><topic>PIONS</topic><topic>PIONS NEUTRAL</topic><topic>PROTON-NEUTRON INTERACTIONS</topic><topic>PROTON-NUCLEON INTERACTIONS</topic><topic>PSEUDOSCALAR MESONS</topic><topic>S WAVES</topic><topic>SPECTROMETERS</topic><topic>STABLE ISOTOPES</topic><topic>TOTAL CROSS SECTIONS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hutcheon, D.A.</creatorcontrib><creatorcontrib>Korkmaz, E.</creatorcontrib><creatorcontrib>Moss, G.A.</creatorcontrib><creatorcontrib>Abegg, R.</creatorcontrib><creatorcontrib>Davison, N.E.</creatorcontrib><creatorcontrib>Edwards, G.W.R.</creatorcontrib><creatorcontrib>Greeniaus, L.G.</creatorcontrib><creatorcontrib>Mack, D.</creatorcontrib><creatorcontrib>Miller, C.A.</creatorcontrib><creatorcontrib>Olsen, W.C.</creatorcontrib><creatorcontrib>van Heerden, I.J.</creatorcontrib><creatorcontrib>Yanlin, Y.</creatorcontrib><collection>OSTI.GOV</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hutcheon, D.A.</au><au>Korkmaz, E.</au><au>Moss, G.A.</au><au>Abegg, R.</au><au>Davison, N.E.</au><au>Edwards, G.W.R.</au><au>Greeniaus, L.G.</au><au>Mack, D.</au><au>Miller, C.A.</au><au>Olsen, W.C.</au><au>van Heerden, I.J.</au><au>Yanlin, Y.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurement of np r arrow d. pi. sup 0 cross sections very near threshold</atitle><jtitle>Physical review letters</jtitle><date>1990-01-08</date><risdate>1990</risdate><volume>64:2</volume><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>We have measured {ital np}{r arrow}{ital d}{pi}{sup 0} cross sections at eleven beam energies within 16 MeV of threshold. Total cross sections are only 0.67{plus minus}0.10 of the value which has been generally accepted for {ital s}-wave pion production strength near threshold. The differential cross sections are anisotropic at only 1 MeV (c.m.) above threshold. Our results are compared to {pi}{sup +}d{r arrow}pp data and to predictions of two models.</abstract><cop>United States</cop><doi>10.1103/PhysRevLett.64.176</doi></addata></record>
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subjects	645102 - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties 651220 - Nuclear Properties & Reactions, A=1-5, Experimental BARYON-BARYON INTERACTIONS BARYONS BASIC INTERACTIONS BOSONS CROSS SECTIONS DATA DATA ANALYSIS DELTA BARYONS DELTA-1232 BARYONS DEUTERIUM DIFFERENTIAL CROSS SECTIONS ELECTROMAGNETIC INTERACTIONS ELEMENTARY PARTICLES ENERGY RANGE EXPERIMENTAL DATA FERMIONS HADRON-HADRON INTERACTIONS HADRONS HYDROGEN ISOTOPES INFORMATION INTERACTIONS ISOTOPES LIGHT NUCLEI MEASURING INSTRUMENTS MESON-BARYON INTERACTIONS MESONS MEV RANGE MEV RANGE 100-1000 N BARYONS NUCLEAR PHYSICS AND RADIATION PHYSICS NUCLEI NUCLEON-NUCLEON INTERACTIONS NUMERICAL DATA ODD-ODD NUCLEI P WAVES PARTIAL WAVES PARTICLE IDENTIFICATION PARTICLE INTERACTIONS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PION-DEUTERON INTERACTIONS PIONS PIONS NEUTRAL PROTON-NEUTRON INTERACTIONS PROTON-NUCLEON INTERACTIONS PSEUDOSCALAR MESONS S WAVES SPECTROMETERS STABLE ISOTOPES TOTAL CROSS SECTIONS
title	Measurement of np r arrow d. pi. sup 0 cross sections very near threshold
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