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Pion-pion correlations at low relative momentum produced in [ital p]-[ital p] collisions at 27. 5 GeV/[ital c]
We have measured the momentum correlation of pion pairs produced in the collisions of 27.5 GeV/[ital c] protons in liquid hydrogen. By considering events for which all final state particles have been measured, we have succeeded in reducing backgrounds due to particle misidentification below 5% for [...
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| Published in: | Physical review. D, Particles and fields Particles and fields, 1994-05, Vol.49:9 |
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| Main Authors: | , , , , , , , , , , , , , , , , , |
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| container_title | Physical review. D, Particles and fields |
| container_volume | 49:9 |
| creator | Uribe, J. Hartouni, E.P. Jensen, D.A. Kreisler, M.N. Church, M.D. Gottschalk, E.E. Knapp, B.C. Sippach, W. Stern, B.J. Wiencke, L.R. Christian, D.C. Gutierrez, G. Holmes, S.D. Wehmann, A. Avilez, C. Forbush, M. Huson, F.R. White, J.T. |
| description | We have measured the momentum correlation of pion pairs produced in the collisions of 27.5 GeV/[ital c] protons in liquid hydrogen. By considering events for which all final state particles have been measured, we have succeeded in reducing backgrounds due to particle misidentification below 5% for [pi][sup +] and 1% for [pi][sup [minus]]. Our use of a precision magnetic spectrometer has provided an accurate determination of particle momenta and excellent acceptance for particle pairs with small relative momentum essential for correlations studies. A large data sample of fully reconstructed events (1[times]10[sup 6]) allows us to analyze the correlations for [pi][sup +][pi][sup +] and [pi][sup [minus]][pi][sup [minus]] pairs separately, and also as a function of the final state multiplicity. We find that the pion pair correlations scale 0.98 fm describes the data well. We do not find any indication of multiplicity dependence of the correlation scale for multiplicities from 6 to 14 final state particles. |
| doi_str_mv | 10.1103/PhysRevD.49.4373 |
| format | article |
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By considering events for which all final state particles have been measured, we have succeeded in reducing backgrounds due to particle misidentification below 5% for [pi][sup +] and 1% for [pi][sup [minus]]. Our use of a precision magnetic spectrometer has provided an accurate determination of particle momenta and excellent acceptance for particle pairs with small relative momentum essential for correlations studies. A large data sample of fully reconstructed events (1[times]10[sup 6]) allows us to analyze the correlations for [pi][sup +][pi][sup +] and [pi][sup [minus]][pi][sup [minus]] pairs separately, and also as a function of the final state multiplicity. We find that the pion pair correlations scale 0.98 fm describes the data well. We do not find any indication of multiplicity dependence of the correlation scale for multiplicities from 6 to 14 final state particles.</description><identifier>ISSN: 0556-2821</identifier><identifier>EISSN: 1089-4918</identifier><identifier>DOI: 10.1103/PhysRevD.49.4373</identifier><language>eng</language><publisher>United States</publisher><subject>662340 - Hadron Interactions- (1992-) ; BARYON-BARYON INTERACTIONS ; BOSONS ; CORRELATIONS ; ELEMENTARY PARTICLES ; HADRON-HADRON INTERACTIONS ; HADRONS ; INTERACTIONS ; MAGNETIC SPECTROMETERS ; MEASURING INSTRUMENTS ; MESONS ; MULTIPLICITY ; NUCLEON-NUCLEON INTERACTIONS ; PAIR PRODUCTION ; PARTICLE INTERACTIONS ; PARTICLE PRODUCTION ; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ; PIONS ; PROTON-NUCLEON INTERACTIONS ; PROTON-PROTON INTERACTIONS ; PSEUDOSCALAR MESONS ; SPECTROMETERS</subject><ispartof>Physical review. 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D, Particles and fields</title><description>We have measured the momentum correlation of pion pairs produced in the collisions of 27.5 GeV/[ital c] protons in liquid hydrogen. By considering events for which all final state particles have been measured, we have succeeded in reducing backgrounds due to particle misidentification below 5% for [pi][sup +] and 1% for [pi][sup [minus]]. Our use of a precision magnetic spectrometer has provided an accurate determination of particle momenta and excellent acceptance for particle pairs with small relative momentum essential for correlations studies. A large data sample of fully reconstructed events (1[times]10[sup 6]) allows us to analyze the correlations for [pi][sup +][pi][sup +] and [pi][sup [minus]][pi][sup [minus]] pairs separately, and also as a function of the final state multiplicity. We find that the pion pair correlations scale 0.98 fm describes the data well. We do not find any indication of multiplicity dependence of the correlation scale for multiplicities from 6 to 14 final state particles.</description><subject>662340 - Hadron Interactions- (1992-)</subject><subject>BARYON-BARYON INTERACTIONS</subject><subject>BOSONS</subject><subject>CORRELATIONS</subject><subject>ELEMENTARY PARTICLES</subject><subject>HADRON-HADRON INTERACTIONS</subject><subject>HADRONS</subject><subject>INTERACTIONS</subject><subject>MAGNETIC SPECTROMETERS</subject><subject>MEASURING INSTRUMENTS</subject><subject>MESONS</subject><subject>MULTIPLICITY</subject><subject>NUCLEON-NUCLEON INTERACTIONS</subject><subject>PAIR PRODUCTION</subject><subject>PARTICLE INTERACTIONS</subject><subject>PARTICLE PRODUCTION</subject><subject>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</subject><subject>PIONS</subject><subject>PROTON-NUCLEON INTERACTIONS</subject><subject>PROTON-PROTON INTERACTIONS</subject><subject>PSEUDOSCALAR MESONS</subject><subject>SPECTROMETERS</subject><issn>0556-2821</issn><issn>1089-4918</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1994</creationdate><recordtype>article</recordtype><recordid>eNqNTz1rwzAUFCGFOG33jo_uciT5e27TZjShZAnGGPkVq8iSsZSU_PsK0uy54e44joMj5IWzmHOWbOrh4vZ4fo_TKk6TIlmQiLOyomnFyyWJWJblVJSCr8jauR8WIPIkIqZW1tApEEg7z6g7H7yDzoO2v3ANzgijHdH40wjTbPuTxB6UgaPynYapoTcTNrRW7rYgihgy-MTD5lqQzRN5-O60w-d_fSSvH9uvtx21zqvWSeVRDtIag9K3GeO5CN_uKv0BjZdQBg</recordid><startdate>19940501</startdate><enddate>19940501</enddate><creator>Uribe, J.</creator><creator>Hartouni, E.P.</creator><creator>Jensen, D.A.</creator><creator>Kreisler, M.N.</creator><creator>Church, M.D.</creator><creator>Gottschalk, E.E.</creator><creator>Knapp, B.C.</creator><creator>Sippach, W.</creator><creator>Stern, B.J.</creator><creator>Wiencke, L.R.</creator><creator>Christian, D.C.</creator><creator>Gutierrez, G.</creator><creator>Holmes, S.D.</creator><creator>Wehmann, A.</creator><creator>Avilez, C.</creator><creator>Forbush, M.</creator><creator>Huson, F.R.</creator><creator>White, J.T.</creator><scope>OTOTI</scope></search><sort><creationdate>19940501</creationdate><title>Pion-pion correlations at low relative momentum produced in [ital p]-[ital p] collisions at 27. 5 GeV/[ital c]</title><author>Uribe, J. ; Hartouni, E.P. ; Jensen, D.A. ; Kreisler, M.N. ; Church, M.D. ; Gottschalk, E.E. ; Knapp, B.C. ; Sippach, W. ; Stern, B.J. ; Wiencke, L.R. ; Christian, D.C. ; Gutierrez, G. ; Holmes, S.D. ; Wehmann, A. ; Avilez, C. ; Forbush, M. ; Huson, F.R. ; White, J.T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-osti_scitechconnect_50162103</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1994</creationdate><topic>662340 - Hadron Interactions- (1992-)</topic><topic>BARYON-BARYON INTERACTIONS</topic><topic>BOSONS</topic><topic>CORRELATIONS</topic><topic>ELEMENTARY PARTICLES</topic><topic>HADRON-HADRON INTERACTIONS</topic><topic>HADRONS</topic><topic>INTERACTIONS</topic><topic>MAGNETIC SPECTROMETERS</topic><topic>MEASURING INSTRUMENTS</topic><topic>MESONS</topic><topic>MULTIPLICITY</topic><topic>NUCLEON-NUCLEON INTERACTIONS</topic><topic>PAIR PRODUCTION</topic><topic>PARTICLE INTERACTIONS</topic><topic>PARTICLE PRODUCTION</topic><topic>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</topic><topic>PIONS</topic><topic>PROTON-NUCLEON INTERACTIONS</topic><topic>PROTON-PROTON INTERACTIONS</topic><topic>PSEUDOSCALAR MESONS</topic><topic>SPECTROMETERS</topic><toplevel>online_resources</toplevel><creatorcontrib>Uribe, J.</creatorcontrib><creatorcontrib>Hartouni, E.P.</creatorcontrib><creatorcontrib>Jensen, D.A.</creatorcontrib><creatorcontrib>Kreisler, M.N.</creatorcontrib><creatorcontrib>Church, M.D.</creatorcontrib><creatorcontrib>Gottschalk, E.E.</creatorcontrib><creatorcontrib>Knapp, B.C.</creatorcontrib><creatorcontrib>Sippach, W.</creatorcontrib><creatorcontrib>Stern, B.J.</creatorcontrib><creatorcontrib>Wiencke, L.R.</creatorcontrib><creatorcontrib>Christian, D.C.</creatorcontrib><creatorcontrib>Gutierrez, G.</creatorcontrib><creatorcontrib>Holmes, S.D.</creatorcontrib><creatorcontrib>Wehmann, A.</creatorcontrib><creatorcontrib>Avilez, C.</creatorcontrib><creatorcontrib>Forbush, M.</creatorcontrib><creatorcontrib>Huson, F.R.</creatorcontrib><creatorcontrib>White, J.T.</creatorcontrib><collection>OSTI.GOV</collection><jtitle>Physical review. D, Particles and fields</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Uribe, J.</au><au>Hartouni, E.P.</au><au>Jensen, D.A.</au><au>Kreisler, M.N.</au><au>Church, M.D.</au><au>Gottschalk, E.E.</au><au>Knapp, B.C.</au><au>Sippach, W.</au><au>Stern, B.J.</au><au>Wiencke, L.R.</au><au>Christian, D.C.</au><au>Gutierrez, G.</au><au>Holmes, S.D.</au><au>Wehmann, A.</au><au>Avilez, C.</au><au>Forbush, M.</au><au>Huson, F.R.</au><au>White, J.T.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pion-pion correlations at low relative momentum produced in [ital p]-[ital p] collisions at 27. 5 GeV/[ital c]</atitle><jtitle>Physical review. D, Particles and fields</jtitle><date>1994-05-01</date><risdate>1994</risdate><volume>49:9</volume><issn>0556-2821</issn><eissn>1089-4918</eissn><abstract>We have measured the momentum correlation of pion pairs produced in the collisions of 27.5 GeV/[ital c] protons in liquid hydrogen. By considering events for which all final state particles have been measured, we have succeeded in reducing backgrounds due to particle misidentification below 5% for [pi][sup +] and 1% for [pi][sup [minus]]. Our use of a precision magnetic spectrometer has provided an accurate determination of particle momenta and excellent acceptance for particle pairs with small relative momentum essential for correlations studies. A large data sample of fully reconstructed events (1[times]10[sup 6]) allows us to analyze the correlations for [pi][sup +][pi][sup +] and [pi][sup [minus]][pi][sup [minus]] pairs separately, and also as a function of the final state multiplicity. We find that the pion pair correlations scale 0.98 fm describes the data well. We do not find any indication of multiplicity dependence of the correlation scale for multiplicities from 6 to 14 final state particles.</abstract><cop>United States</cop><doi>10.1103/PhysRevD.49.4373</doi></addata></record> |
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| ispartof | Physical review. D, Particles and fields, 1994-05, Vol.49:9 |
| issn | 0556-2821 1089-4918 |
| language | eng |
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| source | American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list) |
| subjects | 662340 - Hadron Interactions- (1992-) BARYON-BARYON INTERACTIONS BOSONS CORRELATIONS ELEMENTARY PARTICLES HADRON-HADRON INTERACTIONS HADRONS INTERACTIONS MAGNETIC SPECTROMETERS MEASURING INSTRUMENTS MESONS MULTIPLICITY NUCLEON-NUCLEON INTERACTIONS PAIR PRODUCTION PARTICLE INTERACTIONS PARTICLE PRODUCTION PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PIONS PROTON-NUCLEON INTERACTIONS PROTON-PROTON INTERACTIONS PSEUDOSCALAR MESONS SPECTROMETERS |
| title | Pion-pion correlations at low relative momentum produced in [ital p]-[ital p] collisions at 27. 5 GeV/[ital c] |
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