Charm search in 19 GeV/c pi /sup -/p exclusive reactions

A search for charmed particles produced in pi /sup -/p exclusive reactions at 19 GeV/c incident beam momentum has been carried out with the Omega spectrometer at CERN. Three million interactions were recorded with a trigger which required a forward K/sup -/ of p with transverse momentum greater than...

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Autores principales: Ghidini, B, Aebischer, B, Armstrong, T, Bienlein, J K, Bizeau, C, Bouquet, B, Bourgeois, F, Chounet, J M, Cribier, Michel, Davies, H, De Rosny, G, Dowell, J, Drévillon, B, Dufey, J P, Eades, John, Ferrer, A, Fluri, L, French, Bernard R, Freudenreich, Klaus, Gandois, B, Gildemeister, O, Hartung, R, Houlden, M, Hubbard, John R, Irwin, G, Kenyon, I R, Kumar, R, Lahellec, A, Lassalle, J C, Lauper, S, Mandelli, L, Messerli, R, Mitaroff, W A, Müller, K, Navach, F, Palazzi-Cerrina, C, Pape, L, Petroff, P, Roudeau, P, Rougé, A, Rumpf, M, Salmeron, Roberto Aureliano, Savoy-Navarro, A, Six, J, Sleeman, J C, Smith, I, Sonderegger, P, Strub, R, Thompson, A, Townsend, D, Treille, D, Wilson, J, Woodworth, P L, Wuthrick, J P, Yoshida, H
Lenguaje:eng
Publicado: 1976
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0550-3213(76)90539-3
http://cds.cern.ch/record/873991
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author Ghidini, B
Aebischer, B
Armstrong, T
Bienlein, J K
Bizeau, C
Bouquet, B
Bourgeois, F
Chounet, J M
Cribier, Michel
Davies, H
De Rosny, G
Dowell, J
Drévillon, B
Dufey, J P
Eades, John
Ferrer, A
Fluri, L
French, Bernard R
Freudenreich, Klaus
Gandois, B
Gildemeister, O
Hartung, R
Houlden, M
Hubbard, John R
Irwin, G
Kenyon, I R
Kumar, R
Lahellec, A
Lassalle, J C
Lauper, S
Mandelli, L
Messerli, R
Mitaroff, W A
Müller, K
Navach, F
Palazzi-Cerrina, C
Pape, L
Petroff, P
Roudeau, P
Rougé, A
Rumpf, M
Salmeron, Roberto Aureliano
Savoy-Navarro, A
Six, J
Sleeman, J C
Smith, I
Sonderegger, P
Strub, R
Thompson, A
Townsend, D
Treille, D
Wilson, J
Woodworth, P L
Wuthrick, J P
Yoshida, H
author_facet Ghidini, B
Aebischer, B
Armstrong, T
Bienlein, J K
Bizeau, C
Bouquet, B
Bourgeois, F
Chounet, J M
Cribier, Michel
Davies, H
De Rosny, G
Dowell, J
Drévillon, B
Dufey, J P
Eades, John
Ferrer, A
Fluri, L
French, Bernard R
Freudenreich, Klaus
Gandois, B
Gildemeister, O
Hartung, R
Houlden, M
Hubbard, John R
Irwin, G
Kenyon, I R
Kumar, R
Lahellec, A
Lassalle, J C
Lauper, S
Mandelli, L
Messerli, R
Mitaroff, W A
Müller, K
Navach, F
Palazzi-Cerrina, C
Pape, L
Petroff, P
Roudeau, P
Rougé, A
Rumpf, M
Salmeron, Roberto Aureliano
Savoy-Navarro, A
Six, J
Sleeman, J C
Smith, I
Sonderegger, P
Strub, R
Thompson, A
Townsend, D
Treille, D
Wilson, J
Woodworth, P L
Wuthrick, J P
Yoshida, H
author_sort Ghidini, B
collection CERN
description A search for charmed particles produced in pi /sup -/p exclusive reactions at 19 GeV/c incident beam momentum has been carried out with the Omega spectrometer at CERN. Three million interactions were recorded with a trigger which required a forward K/sup -/ of p with transverse momentum greater than 0.5 GeV/c. An additional two million triggers were recorded with a forward K/sup +/ or proton, with no transverse momentum restriction. Analysis of the four-constraint final states K/sup +/K/sup -/ pi /sup -/p and K/sup +/K/sup -/ pi /sup +/ pi /sup -/ pi /sup -/p shows no evidence for the associated production of charmed particles. The upper limits for the product of production cross sections and the two charmed particle decay branching ratios are below 100 nb for most of the channels. The experiment was sensitive over a wide range of production angles. (16 refs).
id cern-873991
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1976
record_format invenio
spelling cern-8739912019-09-30T06:29:59Zdoi:10.1016/0550-3213(76)90539-3http://cds.cern.ch/record/873991engGhidini, BAebischer, BArmstrong, TBienlein, J KBizeau, CBouquet, BBourgeois, FChounet, J MCribier, MichelDavies, HDe Rosny, GDowell, JDrévillon, BDufey, J PEades, JohnFerrer, AFluri, LFrench, Bernard RFreudenreich, KlausGandois, BGildemeister, OHartung, RHoulden, MHubbard, John RIrwin, GKenyon, I RKumar, RLahellec, ALassalle, J CLauper, SMandelli, LMesserli, RMitaroff, W AMüller, KNavach, FPalazzi-Cerrina, CPape, LPetroff, PRoudeau, PRougé, ARumpf, MSalmeron, Roberto AurelianoSavoy-Navarro, ASix, JSleeman, J CSmith, ISonderegger, PStrub, RThompson, ATownsend, DTreille, DWilson, JWoodworth, P LWuthrick, J PYoshida, HCharm search in 19 GeV/c pi /sup -/p exclusive reactionsParticle Physics - PhenomenologyA search for charmed particles produced in pi /sup -/p exclusive reactions at 19 GeV/c incident beam momentum has been carried out with the Omega spectrometer at CERN. Three million interactions were recorded with a trigger which required a forward K/sup -/ of p with transverse momentum greater than 0.5 GeV/c. An additional two million triggers were recorded with a forward K/sup +/ or proton, with no transverse momentum restriction. Analysis of the four-constraint final states K/sup +/K/sup -/ pi /sup -/p and K/sup +/K/sup -/ pi /sup +/ pi /sup -/ pi /sup -/p shows no evidence for the associated production of charmed particles. The upper limits for the product of production cross sections and the two charmed particle decay branching ratios are below 100 nb for most of the channels. The experiment was sensitive over a wide range of production angles. (16 refs).oai:cds.cern.ch:8739911976
spellingShingle Particle Physics - Phenomenology
Ghidini, B
Aebischer, B
Armstrong, T
Bienlein, J K
Bizeau, C
Bouquet, B
Bourgeois, F
Chounet, J M
Cribier, Michel
Davies, H
De Rosny, G
Dowell, J
Drévillon, B
Dufey, J P
Eades, John
Ferrer, A
Fluri, L
French, Bernard R
Freudenreich, Klaus
Gandois, B
Gildemeister, O
Hartung, R
Houlden, M
Hubbard, John R
Irwin, G
Kenyon, I R
Kumar, R
Lahellec, A
Lassalle, J C
Lauper, S
Mandelli, L
Messerli, R
Mitaroff, W A
Müller, K
Navach, F
Palazzi-Cerrina, C
Pape, L
Petroff, P
Roudeau, P
Rougé, A
Rumpf, M
Salmeron, Roberto Aureliano
Savoy-Navarro, A
Six, J
Sleeman, J C
Smith, I
Sonderegger, P
Strub, R
Thompson, A
Townsend, D
Treille, D
Wilson, J
Woodworth, P L
Wuthrick, J P
Yoshida, H
Charm search in 19 GeV/c pi /sup -/p exclusive reactions
title Charm search in 19 GeV/c pi /sup -/p exclusive reactions
title_full Charm search in 19 GeV/c pi /sup -/p exclusive reactions
title_fullStr Charm search in 19 GeV/c pi /sup -/p exclusive reactions
title_full_unstemmed Charm search in 19 GeV/c pi /sup -/p exclusive reactions
title_short Charm search in 19 GeV/c pi /sup -/p exclusive reactions
title_sort charm search in 19 gev/c pi /sup -/p exclusive reactions
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/0550-3213(76)90539-3
http://cds.cern.ch/record/873991
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