Limits for the central production of Θ+ and Ξ- - pentaquarks in 920-GeV pA collisions

I. Abt; M. Adams; M. Agari; H. Albrecht; A. Aleksandrov; V. Amaral; A. Amorim; S. J. Aplin; V. Aushev; Y. Bagaturia; V. Balagura; M. Bargiotti; O. Barsukova; J. Bastos; J. Batista; C. Bauer; Th S. Bauer; A. Belkov; Ar Belkov; I. Belotelov; A. Bertin; B. Bobchenko; M. Böcker; A. Bogatyrev; G. Bohm; M. Bräuer; M. Bruinsma; M. Bruschi; P. Buchholz; T. Buran; J. Carvalho; P. Conde; C. Cruse; M. Dam; K. M. Danielsen; M. Danilov; S. de Castro; H. Deppe; X. Dong; H. B. Dreis; V. Egorytchev; K. Ehret; F. Eisele; D. Emeliyanov; S. Essenov; L. Fabbri; P. Faccioli; M. Feuerstack-Raible; J. Flammer; B. Fominykh; M. Funcke; L. Garrido; B. Giacobbe; J. Glöß; D. Goloubkov; Y. Golubkov; A. Golutvin; I. Golutvin; I. Gorbounov; A. Gorišek; O. Gouchtchine; D. C. Goulart; S. Gradl; W. Gradl; F. Grimaldi; J. Groth-Jensen; Y. Guilitsky; J. D. Hansen; J. M. Hernández; W. Hofmann; T. Hott; W. Hulsbergen; U. Husemann; O. Igonkina; M. Ispiryan; T. Jagla; C. Jiang; H. Kapitza; S. Karabekyan; N. Karpenko; S. Keller; J. Kessler; F. Khasanov; Y. Kiryushin; E. Klinkby; K. T. Knöpfle; H. Kolanoski; S. Korpar; C. Krauss; P. Kreuzer; P. Križan; D. Krücker; S. Kupper; T. Kvaratskheliia; A. Lanyov; K. Lau; B. Lewendel; T. Lohse; B. Lomonosov; R. Männer; S. Masciocchi; I. Massa; I. Matchikhilian; G. Medin; M. Medinnis; M. Mevius; A. Michetti; Y. Mikhailov; R. Mizuk; R. Muresan; M. zur Nedden; M. Negodaev; M. Nörenberg; S. Nowak; M. T. Núñez Pardo de Vera; M. Ouchrif; F. Ould-Saada; C. Padilla; D. Peralta; R. Pernack; R. Pestotnik; M. Piccinini; M. A. Pleier; M. Poli; V. Popov; A. Pose; D. Pose; S. Prystupa; V. Pugatch; Y. Pylypchenko; J. Pyrlik; K. Reeves; D. Reßing; H. Rick; I. Riu; P. Robmann; I. Rostovtseva; V. Rybnikov; F. Sánchez; A. Sbrizzi; M. Schmelling; B. Schmidt; A. Schreiner; H. Schröder; A. J. Schwartz; A. S. Schwarz; B. Schwenninger; B. Schwingenheuer; F. Sciacca; N. Semprini-Cesari; S. Shuvalov; L. Silva; K. Smirnov; L. Sözüer; S. Solunin; A. Somov; S. Somov; J. Spengler; R. Spighi; A. Spiridonov; A. Stanovnik; M. Starič; C. Stegmann; H. S. Subramania; M. Symalla; I. Tikhomirov; M. Titov; I. Tsakov; U. Uwer; C. van Eldik; Y. Vassiliev; M. Villa; A. Vitale; I. Vukotic; H. Wahlberg; A. H. Walenta; M. Walter; J. J. Wang; D. Wegener; U. Werthenbach; H. Wolters; R. Wurth; A. Wurz; Y. Zaitsev; M. Zavertyaev; G. Zech; T. Zeuner; A. Zhelezov; Z. Zheng; R. Zimmermann; T. Živko; A. Zoccoli

doi:10.1103/PhysRevLett.93.212003

Limits for the central production of Θ⁺ and Ξ^{- -} pentaquarks in 920-GeV pA collisions

I. Abt
, M. Adams
, M. Agari
, H. Albrecht
, A. Aleksandrov
, V. Amaral
, A. Amorim
, S. J. Aplin
, V. Aushev
, Y. Bagaturia
, V. Balagura
, M. Bargiotti
, O. Barsukova
, J. Bastos
, J. Batista
, C. Bauer
, Th S. Bauer
, A. Belkov
, Ar Belkov
, I. Belotelov

A. Bertin, B. Bobchenko, M. Böcker, A. Bogatyrev, G. Bohm, M. Bräuer, M. Bruinsma, M. Bruschi, P. Buchholz, T. Buran, J. Carvalho, P. Conde, C. Cruse, M. Dam, K. M. Danielsen, M. Danilov, S. de Castro, H. Deppe, X. Dong, H. B. Dreis, V. Egorytchev, K. Ehret, F. Eisele, D. Emeliyanov, S. Essenov, L. Fabbri, P. Faccioli, M. Feuerstack-Raible, J. Flammer, B. Fominykh, M. Funcke, L. Garrido, B. Giacobbe, J. Glöß, D. Goloubkov, Y. Golubkov, A. Golutvin, I. Golutvin, I. Gorbounov, A. Gorišek, O. Gouchtchine, D. C. Goulart, S. Gradl, W. Gradl, F. Grimaldi, J. Groth-Jensen, Y. Guilitsky, J. D. Hansen, J. M. Hernández, W. Hofmann, T. Hott, W. Hulsbergen, U. Husemann, O. Igonkina, M. Ispiryan, T. Jagla, C. Jiang, H. Kapitza, S. Karabekyan, N. Karpenko, S. Keller, J. Kessler, F. Khasanov, Y. Kiryushin, E. Klinkby, K. T. Knöpfle, H. Kolanoski, S. Korpar, C. Krauss, P. Kreuzer, P. Križan, D. Krücker, S. Kupper, T. Kvaratskheliia, A. Lanyov, K. Lau, B. Lewendel, T. Lohse, B. Lomonosov, R. Männer, S. Masciocchi, I. Massa, I. Matchikhilian, G. Medin, M. Medinnis, M. Mevius, A. Michetti, Y. Mikhailov, R. Mizuk, R. Muresan, M. zur Nedden, M. Negodaev, M. Nörenberg, S. Nowak, M. T. Núñez Pardo de Vera, M. Ouchrif, F. Ould-Saada, C. Padilla, D. Peralta, R. Pernack, R. Pestotnik, M. Piccinini, M. A. Pleier, M. Poli, V. Popov, A. Pose, D. Pose, S. Prystupa, V. Pugatch, Y. Pylypchenko, J. Pyrlik, K. Reeves, D. Reßing, H. Rick, I. Riu, P. Robmann, I. Rostovtseva, V. Rybnikov, F. Sánchez, A. Sbrizzi, M. Schmelling, B. Schmidt, A. Schreiner, H. Schröder, A. J. Schwartz, A. S. Schwarz, B. Schwenninger, B. Schwingenheuer, F. Sciacca, N. Semprini-Cesari, S. Shuvalov, L. Silva, K. Smirnov, L. Sözüer, S. Solunin, A. Somov, S. Somov, J. Spengler, R. Spighi, A. Spiridonov, A. Stanovnik, M. Starič, C. Stegmann, H. S. Subramania, M. Symalla, I. Tikhomirov, M. Titov, I. Tsakov, U. Uwer, C. van Eldik, Y. Vassiliev, M. Villa, A. Vitale, I. Vukotic, H. Wahlberg, A. H. Walenta, M. Walter, J. J. Wang, D. Wegener, U. Werthenbach, H. Wolters, R. Wurth, A. Wurz, Y. Zaitsev, M. Zavertyaev, G. Zech, T. Zeuner, A. Zhelezov, Z. Zheng, R. Zimmermann, T. Živko, A. Zoccoli

Max-Planck-Institut für Physik
University of Dortmund
Max-Planck-Institut für Kernphysik
c/o DESY
LIP Coimbra
Institute of Nuclear Research, National Academy of Sciences in Ukraine
High Energy Physics Institute
Institute for Theoretical and Experimental Physics
University of Bologna
Joint Institute for Nuclear Research, Dubna
Science Park 105
Universität Siegen
Universiteit Utrecht
University of Oslo
University of Barcelona
Niels Bohr Institutet
University of Heidelberg
Institute of High Energy Physics, Chinese Academy of Sciences
University of Mannheim
National Research Nuclear University MEPhI
Moscow State University
Department of Biochemistry and Molecular and Structural Biology
University of Cincinnati
Kurchatov Institute
University of Houston
Universität Rostock
Humboldt-Universität zu Berlin
University of Maribor
University of California, Los Angeles
University of Ljubljana
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
University of Florence
Physik-Institut der Universität Zürich
Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
Tsinghua University

Research output: Contribution to journal › Article › peer-review

84 Citations (Scopus)

Abstract

The limits for the central production of θ⁺ and ξ ^-- pentaquark candidates in proton-induced reactions on C, Ti and W in 920-GeV pA collisions was investigated. It was found that there was no evidence for narrow signals in the θ⁺ → pK _s⁰ and ξ^-- → ξ^-π ^- channels. It was observed that the upper limits (UL) for the inclusive production cross section times branching fraction Bdσ/dyι_y∼0 were (4-16) μb/N. It was also observed that the calculated UL for θ⁺/λ(1520) < 2.7% was lower than statistical hadronization predictions.

Original language	English
Article number	212003
Journal	Physical Review Letters
Volume	93
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.93.212003
Publication status	Published - 19 Nov 2004
Externally published	Yes

Access to Document

10.1103/PhysRevLett.93.212003

Cite this

Abt, I., Adams, M., Agari, M., Albrecht, H., Aleksandrov, A., Amaral, V., Amorim, A., Aplin, S. J., Aushev, V., Bagaturia, Y., Balagura, V., Bargiotti, M., Barsukova, O., Bastos, J., Batista, J., Bauer, C., Bauer, T. S., Belkov, A., Belkov, A., ... Zoccoli, A. (2004). Limits for the central production of Θ⁺ and Ξ^{- -} pentaquarks in 920-GeV pA collisions. Physical Review Letters, 93(21), Article 212003. https://doi.org/10.1103/PhysRevLett.93.212003

@article{fad4059806504e869ca0605045006773,

title = "Limits for the central production of Θ+ and Ξ- - pentaquarks in 920-GeV pA collisions",

abstract = "The limits for the central production of θ+ and ξ -- pentaquark candidates in proton-induced reactions on C, Ti and W in 920-GeV pA collisions was investigated. It was found that there was no evidence for narrow signals in the θ+ → pK s0 and ξ-- → ξ-π - channels. It was observed that the upper limits (UL) for the inclusive production cross section times branching fraction Bdσ/dyιy∼0 were (4-16) μb/N. It was also observed that the calculated UL for θ+/λ(1520) < 2.7\% was lower than statistical hadronization predictions.",

author = "I. Abt and M. Adams and M. Agari and H. Albrecht and A. Aleksandrov and V. Amaral and A. Amorim and Aplin, \{S. J.\} and V. Aushev and Y. Bagaturia and V. Balagura and M. Bargiotti and O. Barsukova and J. Bastos and J. Batista and C. Bauer and Bauer, \{Th S.\} and A. Belkov and Ar Belkov and I. Belotelov and A. Bertin and B. Bobchenko and M. B{\"o}cker and A. Bogatyrev and G. Bohm and M. Br{\"a}uer and M. Bruinsma and M. Bruschi and P. Buchholz and T. Buran and J. Carvalho and P. Conde and C. Cruse and M. Dam and Danielsen, \{K. M.\} and M. Danilov and \{de Castro\}, S. and H. Deppe and X. Dong and Dreis, \{H. B.\} and V. Egorytchev and K. Ehret and F. Eisele and D. Emeliyanov and S. Essenov and L. Fabbri and P. Faccioli and M. Feuerstack-Raible and J. Flammer and B. Fominykh and M. Funcke and L. Garrido and B. Giacobbe and J. Gl{\"o}{\ss} and D. Goloubkov and Y. Golubkov and A. Golutvin and I. Golutvin and I. Gorbounov and A. Gori{\v s}ek and O. Gouchtchine and Goulart, \{D. C.\} and S. Gradl and W. Gradl and F. Grimaldi and J. Groth-Jensen and Y. Guilitsky and Hansen, \{J. D.\} and Hern{\'a}ndez, \{J. M.\} and W. Hofmann and T. Hott and W. Hulsbergen and U. Husemann and O. Igonkina and M. Ispiryan and T. Jagla and C. Jiang and H. Kapitza and S. Karabekyan and N. Karpenko and S. Keller and J. Kessler and F. Khasanov and Y. Kiryushin and E. Klinkby and Kn{\"o}pfle, \{K. T.\} and H. Kolanoski and S. Korpar and C. Krauss and P. Kreuzer and P. Kri{\v z}an and D. Kr{\"u}cker and S. Kupper and T. Kvaratskheliia and A. Lanyov and K. Lau and B. Lewendel and T. Lohse and B. Lomonosov and R. M{\"a}nner and S. Masciocchi and I. Massa and I. Matchikhilian and G. Medin and M. Medinnis and M. Mevius and A. Michetti and Y. Mikhailov and R. Mizuk and R. Muresan and \{zur Nedden\}, M. and M. Negodaev and M. N{\"o}renberg and S. Nowak and \{N{\'u}{\~n}ez Pardo de Vera\}, \{M. T.\} and M. Ouchrif and F. Ould-Saada and C. Padilla and D. Peralta and R. Pernack and R. Pestotnik and M. Piccinini and Pleier, \{M. A.\} and M. Poli and V. Popov and A. Pose and D. Pose and S. Prystupa and V. Pugatch and Y. Pylypchenko and J. Pyrlik and K. Reeves and D. Re{\ss}ing and H. Rick and I. Riu and P. Robmann and I. Rostovtseva and V. Rybnikov and F. S{\'a}nchez and A. Sbrizzi and M. Schmelling and B. Schmidt and A. Schreiner and H. Schr{\"o}der and Schwartz, \{A. J.\} and Schwarz, \{A. S.\} and B. Schwenninger and B. Schwingenheuer and F. Sciacca and N. Semprini-Cesari and S. Shuvalov and L. Silva and K. Smirnov and L. S{\"o}z{\"u}er and S. Solunin and A. Somov and S. Somov and J. Spengler and R. Spighi and A. Spiridonov and A. Stanovnik and M. Stari{\v c} and C. Stegmann and Subramania, \{H. S.\} and M. Symalla and I. Tikhomirov and M. Titov and I. Tsakov and U. Uwer and \{van Eldik\}, C. and Y. Vassiliev and M. Villa and A. Vitale and I. Vukotic and H. Wahlberg and Walenta, \{A. H.\} and M. Walter and Wang, \{J. J.\} and D. Wegener and U. Werthenbach and H. Wolters and R. Wurth and A. Wurz and Y. Zaitsev and M. Zavertyaev and G. Zech and T. Zeuner and A. Zhelezov and Z. Zheng and R. Zimmermann and T. {\v Z}ivko and A. Zoccoli",

year = "2004",

month = nov,

day = "19",

doi = "10.1103/PhysRevLett.93.212003",

language = "English",

volume = "93",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "21",

}

Abt, I, Adams, M, Agari, M, Albrecht, H, Aleksandrov, A, Amaral, V, Amorim, A, Aplin, SJ, Aushev, V, Bagaturia, Y, Balagura, V, Bargiotti, M, Barsukova, O, Bastos, J, Batista, J, Bauer, C, Bauer, TS, Belkov, A, Belkov, A, Belotelov, I, Bertin, A, Bobchenko, B, Böcker, M, Bogatyrev, A, Bohm, G, Bräuer, M, Bruinsma, M, Bruschi, M, Buchholz, P, Buran, T, Carvalho, J, Conde, P, Cruse, C, Dam, M, Danielsen, KM, Danilov, M, de Castro, S, Deppe, H, Dong, X, Dreis, HB, Egorytchev, V, Ehret, K, Eisele, F, Emeliyanov, D, Essenov, S, Fabbri, L, Faccioli, P, Feuerstack-Raible, M, Flammer, J, Fominykh, B, Funcke, M, Garrido, L, Giacobbe, B, Glöß, J, Goloubkov, D, Golubkov, Y, Golutvin, A, Golutvin, I, Gorbounov, I, Gorišek, A, Gouchtchine, O, Goulart, DC, Gradl, S, Gradl, W, Grimaldi, F, Groth-Jensen, J, Guilitsky, Y, Hansen, JD, Hernández, JM, Hofmann, W, Hott, T, Hulsbergen, W, Husemann, U, Igonkina, O, Ispiryan, M, Jagla, T, Jiang, C, Kapitza, H, Karabekyan, S, Karpenko, N, Keller, S, Kessler, J, Khasanov, F, Kiryushin, Y, Klinkby, E, Knöpfle, KT, Kolanoski, H, Korpar, S, Krauss, C, Kreuzer, P, Križan, P, Krücker, D, Kupper, S, Kvaratskheliia, T, Lanyov, A, Lau, K, Lewendel, B, Lohse, T, Lomonosov, B, Männer, R, Masciocchi, S, Massa, I, Matchikhilian, I, Medin, G, Medinnis, M, Mevius, M, Michetti, A, Mikhailov, Y, Mizuk, R, Muresan, R, zur Nedden, M, Negodaev, M, Nörenberg, M, Nowak, S, Núñez Pardo de Vera, MT, Ouchrif, M, Ould-Saada, F, Padilla, C, Peralta, D, Pernack, R, Pestotnik, R, Piccinini, M, Pleier, MA, Poli, M, Popov, V, Pose, A, Pose, D, Prystupa, S, Pugatch, V, Pylypchenko, Y, Pyrlik, J, Reeves, K, Reßing, D, Rick, H, Riu, I, Robmann, P, Rostovtseva, I, Rybnikov, V, Sánchez, F, Sbrizzi, A, Schmelling, M, Schmidt, B, Schreiner, A, Schröder, H, Schwartz, AJ, Schwarz, AS, Schwenninger, B, Schwingenheuer, B, Sciacca, F, Semprini-Cesari, N, Shuvalov, S, Silva, L, Smirnov, K, Sözüer, L, Solunin, S, Somov, A, Somov, S, Spengler, J, Spighi, R, Spiridonov, A, Stanovnik, A, Starič, M, Stegmann, C, Subramania, HS, Symalla, M, Tikhomirov, I, Titov, M, Tsakov, I, Uwer, U, van Eldik, C, Vassiliev, Y, Villa, M, Vitale, A, Vukotic, I, Wahlberg, H, Walenta, AH, Walter, M, Wang, JJ, Wegener, D, Werthenbach, U, Wolters, H, Wurth, R, Wurz, A, Zaitsev, Y, Zavertyaev, M, Zech, G, Zeuner, T, Zhelezov, A, Zheng, Z, Zimmermann, R, Živko, T & Zoccoli, A 2004, 'Limits for the central production of Θ⁺ and Ξ^{- -} pentaquarks in 920-GeV pA collisions', Physical Review Letters, vol. 93, no. 21, 212003. https://doi.org/10.1103/PhysRevLett.93.212003

TY - JOUR

T1 - Limits for the central production of Θ+ and Ξ- - pentaquarks in 920-GeV pA collisions

AU - Abt, I.

AU - Adams, M.

AU - Agari, M.

AU - Albrecht, H.

AU - Aleksandrov, A.

AU - Amaral, V.

AU - Amorim, A.

AU - Aplin, S. J.

AU - Aushev, V.

AU - Bagaturia, Y.

AU - Balagura, V.

AU - Bargiotti, M.

AU - Barsukova, O.

AU - Bastos, J.

AU - Batista, J.

AU - Bauer, C.

AU - Bauer, Th S.

AU - Belkov, A.

AU - Belkov, Ar

AU - Belotelov, I.

AU - Bertin, A.

AU - Bobchenko, B.

AU - Böcker, M.

AU - Bogatyrev, A.

AU - Bohm, G.

AU - Bräuer, M.

AU - Bruinsma, M.

AU - Bruschi, M.

AU - Buchholz, P.

AU - Buran, T.

AU - Carvalho, J.

AU - Conde, P.

AU - Cruse, C.

AU - Dam, M.

AU - Danielsen, K. M.

AU - Danilov, M.

AU - de Castro, S.

AU - Deppe, H.

AU - Dong, X.

AU - Dreis, H. B.

AU - Egorytchev, V.

AU - Ehret, K.

AU - Eisele, F.

AU - Emeliyanov, D.

AU - Essenov, S.

AU - Fabbri, L.

AU - Faccioli, P.

AU - Feuerstack-Raible, M.

AU - Flammer, J.

AU - Fominykh, B.

AU - Funcke, M.

AU - Garrido, L.

AU - Giacobbe, B.

AU - Glöß, J.

AU - Goloubkov, D.

AU - Golubkov, Y.

AU - Golutvin, A.

AU - Golutvin, I.

AU - Gorbounov, I.

AU - Gorišek, A.

AU - Gouchtchine, O.

AU - Goulart, D. C.

AU - Gradl, S.

AU - Gradl, W.

AU - Grimaldi, F.

AU - Groth-Jensen, J.

AU - Guilitsky, Y.

AU - Hansen, J. D.

AU - Hernández, J. M.

AU - Hofmann, W.

AU - Hott, T.

AU - Hulsbergen, W.

AU - Husemann, U.

AU - Igonkina, O.

AU - Ispiryan, M.

AU - Jagla, T.

AU - Jiang, C.

AU - Kapitza, H.

AU - Karabekyan, S.

AU - Karpenko, N.

AU - Keller, S.

AU - Kessler, J.

AU - Khasanov, F.

AU - Kiryushin, Y.

AU - Klinkby, E.

AU - Knöpfle, K. T.

AU - Kolanoski, H.

AU - Korpar, S.

AU - Krauss, C.

AU - Kreuzer, P.

AU - Križan, P.

AU - Krücker, D.

AU - Kupper, S.

AU - Kvaratskheliia, T.

AU - Lanyov, A.

AU - Lau, K.

AU - Lewendel, B.

AU - Lohse, T.

AU - Lomonosov, B.

AU - Männer, R.

AU - Masciocchi, S.

AU - Massa, I.

AU - Matchikhilian, I.

AU - Medin, G.

AU - Medinnis, M.

AU - Mevius, M.

AU - Michetti, A.

AU - Mikhailov, Y.

AU - Mizuk, R.

AU - Muresan, R.

AU - zur Nedden, M.

AU - Negodaev, M.

AU - Nörenberg, M.

AU - Nowak, S.

AU - Núñez Pardo de Vera, M. T.

AU - Ouchrif, M.

AU - Ould-Saada, F.

AU - Padilla, C.

AU - Peralta, D.

AU - Pernack, R.

AU - Pestotnik, R.

AU - Piccinini, M.

AU - Pleier, M. A.

AU - Poli, M.

AU - Popov, V.

AU - Pose, A.

AU - Pose, D.

AU - Prystupa, S.

AU - Pugatch, V.

AU - Pylypchenko, Y.

AU - Pyrlik, J.

AU - Reeves, K.

AU - Reßing, D.

AU - Rick, H.

AU - Riu, I.

AU - Robmann, P.

AU - Rostovtseva, I.

AU - Rybnikov, V.

AU - Sánchez, F.

AU - Sbrizzi, A.

AU - Schmelling, M.

AU - Schmidt, B.

AU - Schreiner, A.

AU - Schröder, H.

AU - Schwartz, A. J.

AU - Schwarz, A. S.

AU - Schwenninger, B.

AU - Schwingenheuer, B.

AU - Sciacca, F.

AU - Semprini-Cesari, N.

AU - Shuvalov, S.

AU - Silva, L.

AU - Smirnov, K.

AU - Sözüer, L.

AU - Solunin, S.

AU - Somov, A.

AU - Somov, S.

AU - Spengler, J.

AU - Spighi, R.

AU - Spiridonov, A.

AU - Stanovnik, A.

AU - Starič, M.

AU - Stegmann, C.

AU - Subramania, H. S.

AU - Symalla, M.

AU - Tikhomirov, I.

AU - Titov, M.

AU - Tsakov, I.

AU - Uwer, U.

AU - van Eldik, C.

AU - Vassiliev, Y.

AU - Villa, M.

AU - Vitale, A.

AU - Vukotic, I.

AU - Wahlberg, H.

AU - Walenta, A. H.

AU - Walter, M.

AU - Wang, J. J.

AU - Wegener, D.

AU - Werthenbach, U.

AU - Wolters, H.

AU - Wurth, R.

AU - Wurz, A.

AU - Zaitsev, Y.

AU - Zavertyaev, M.

AU - Zech, G.

AU - Zeuner, T.

AU - Zhelezov, A.

AU - Zheng, Z.

AU - Zimmermann, R.

AU - Živko, T.

AU - Zoccoli, A.

PY - 2004/11/19

Y1 - 2004/11/19

N2 - The limits for the central production of θ+ and ξ -- pentaquark candidates in proton-induced reactions on C, Ti and W in 920-GeV pA collisions was investigated. It was found that there was no evidence for narrow signals in the θ+ → pK s0 and ξ-- → ξ-π - channels. It was observed that the upper limits (UL) for the inclusive production cross section times branching fraction Bdσ/dyιy∼0 were (4-16) μb/N. It was also observed that the calculated UL for θ+/λ(1520) < 2.7% was lower than statistical hadronization predictions.

AB - The limits for the central production of θ+ and ξ -- pentaquark candidates in proton-induced reactions on C, Ti and W in 920-GeV pA collisions was investigated. It was found that there was no evidence for narrow signals in the θ+ → pK s0 and ξ-- → ξ-π - channels. It was observed that the upper limits (UL) for the inclusive production cross section times branching fraction Bdσ/dyιy∼0 were (4-16) μb/N. It was also observed that the calculated UL for θ+/λ(1520) < 2.7% was lower than statistical hadronization predictions.

U2 - 10.1103/PhysRevLett.93.212003

DO - 10.1103/PhysRevLett.93.212003

M3 - Article

AN - SCOPUS:37649028167

SN - 0031-9007

VL - 93

JO - Physical Review Letters

JF - Physical Review Letters

IS - 21

M1 - 212003

ER -

Limits for the central production of Θ+ and Ξ- - pentaquarks in 920-GeV pA collisions

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Limits for the central production of Θ⁺ and Ξ^{- -} pentaquarks in 920-GeV pA collisions