M. N. Kreisler

Search for exotic baryons in 800 GeV/cpp→pX

David Charles Christian, J. Félix, E. E. Gottschalk, Gaston Gutierrez et autres

We present preliminary results of the search for the pentaquark candidates Θ(1540) and Ξ(1862) using data from Fermilab experiment E690 in the reaction pp → pX at 800 GeV/c. We find that production of pentaquark resonances is heavily suppressed with respect to …

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Λ0 POLARIZATION IN pp → pΛ0K+(π+π-)5 AT 27.5 GeV

J. Félix, David Charles Christian, M. Church, Michael Forbush et autres

mx, us (code pays fourni par la source)

Search for Exotic Baryons in 800 GeV pp→pΞ±π±X Reactions

David Charles Christian, J. Félix, E. E. Gottschalk, Gaston Gutierrez et autres

We report the results of a high-statistics, sensitive search for narrow baryon resonances decaying to ${\ensuremath{\Xi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{\ensuremath{-}}$, ${\ensuremath{\Xi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$, ${\overline{\ensuremath{\Xi}}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$, and ${\overline{\ensuremath{\Xi}}}^{+}{\ensuremath{\pi}}^{+}$. The only resonances observed are the well known ${\ensuremath{\Xi}}^{0}(1530)$ and ${\overline{\ensuremath{\Xi}}}^{0}(1530)$. No evidence is found for the states near 1862 MeV, previously …

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Λ0 POLARIZATION IN pp → pΛ0K+ (π+π−)5 AT 27.5 GeV

J. Félix, David Charles Christian, M. Church, Michael Forbush et autres

mx, us (code pays fourni par la source)

Search for exotic baryons in 800-GeV pp ---> p Xi+- pi+- X

David Charles Christian, J. Felix, E. E. Gottschalk, E. P. Hartouni et autres

The authors report the results of a high-statistics, sensitive search for narrow baryon resonances decaying to {Xi}{sup -}{pi}{sup -}, {Xi}{sup -}{pi}{sup +}, {bar {Xi}}{sup +}{pi}{sup +}. The only resonances observed are the well known {Xi}{sup 0}(1530) and {bar {Xi}}{sup 0}(1530). No evidence …

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Lambda0 polarization in p p ---> p Lambda0 K+ (pi+ pi-) at 27.5-GeV

J. Félix, David Charles Christian, M. Church, Michael Forbush et autres

The polarization of 1973 {Lambda}{sup 0}'s from the specific reaction pp {yields} p{Lambda}{sup 0}K{sup +}({pi}{sup +}{pi}{sup -}){sup 5} created by 27.5 Gev incident protons on a liquid hydrogen target, as a function of {chi}{sub F}, P{sub T}, and M{sub {Lambda}{sup 0}K{sup +}}, …

[Formula presented] Polarization in [Formula presented]

J. Félix, G. Moreno, Modesto Antonio Sosa, M. C. Berisso et autres

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Antiproton production in p+A collisions at 12.3 and 17.5 GeV/c

I. Chemakin, V. Cianciolo, B. A. Cole, Richard Clinton Fernow et autres

Inclusive and semi-inclusive measurements are presented for antiproton $(\overline{p})$ production in proton-nucleus collisions at the Alternating Gradient Synchrotron (AGS). The inclusive yields per event increase strongly with increasing beam energy and decrease slightly with increasing target mass. The $\overline{p}$ yield in 17.5 …

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Study of Λ0 Polarization in Four Different Exclusive pp Reactions at 27.5 GeV/ c

J. Félix, C. Avilez, David Charles Christian, M. Church et autres

We have measured the ${x}_{F}$ and ${P}_{T}$ dependence of the polarization of ${\ensuremath{\Lambda}}^{0}$ hyperons produced in exclusive final states $\mathrm{pp}\ensuremath{\rightarrow}p{\ensuremath{\Lambda}}^{0}{K}^{+}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$, $\mathrm{pp}\ensuremath{\rightarrow}p{\ensuremath{\Lambda}}^{0}{K}^{+}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$, $\mathrm{pp}\ensuremath{\rightarrow}p{\ensuremath{\Lambda}}^{0}{K}^{+}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$, and $\mathrm{pp}\ensuremath{\rightarrow}p{\ensuremath{\Lambda}}^{0}{K}^{+}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ at 27.5 GeV/ $c$. We present an empirical parametrization for ${\ensuremath{\Lambda}}^{0}$ polarization as a function of ${x}_{F}$ and …

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H Dibaryon Search in p-A Collisions at the AGS

Anthony D. Frawley, I. Chemakin, V. Cianciolo, B. Cole et autres

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Λ[sup 0] polarization in exclusive pp reactions at 27.5 GeV/c

J. Félix, C. Avilez, David Charles Christian, M. Church et autres

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation J. Félix, C. Avilez, D. C. Christian, M. D. …

mx, us (code pays fourni par la source)

Study of Λ0 polarization in exclusive pp reactions at 27.5 GeV/c

J. Félix, C. Avilez, David Charles Christian, M. Church et autres

We report a measurement of the xF and PTΛ0 polarization dependence; Λ0’s were produced in the specific channels: pp→pΛ0K+π+π−, pp→pΛ0K+π+π−π+π−, pp→pΛ0K+π+π−π+π−π+π−, and pp→pΛ0K+π+π−π+π−π+π−π+π− with 27.5 GeV/c protons incident on a liquid hydrogen target. We find that Λ0 polarization is independent of the …

mx, us (code pays fourni par la source)