Search for the Neutral Dibaryon with Strangeness −2 in High Transverse Momentum π Nucleus Interactions at 40 GeV/c

H. Bärwolff, W. Friebel, U. Gensch, U. Kundt, K. Lanius, H. Roloff, H. J. Schreiber, E. Dénes, L. Diosy, T. Gemesy, L. Jenik, J. Krasnovsky, Gy Pinter, I. Wagner, A. V. Bannikov, J. Böhm, Ya V. Grishkevich, B. A. Khomenko, Z. V. Krumstein, Yu P. MerekovV. I. Petrukhin, K. Safarik, G. A. Shelkov, L. G. Tkachev, L. S. Vertogradov, T. Soukup, A. Valkarova, S. Valkar, P. Zavada, V. N. Penev, A. I. Sklovskaja, A. K. Jarishvili, A. I. Kharchillava, T. A. Lomtadze, L. A. Razdolskaya, W. Dominik, J. Gajewski, S. Majewski, K. Pniewska, L. Ropelewski, J. A. Zakrzewski

Research output: Contribution to journalArticle

Abstract

Analysing high transverse momentum π nucleus interactions at 40 GeV/c, a search has been made for the hypothetical dibaryon H0 with strangeness −2, spin‐parity 0+ and mass below the two lambda mass. The data came from an experiment performed with a streamer chamber which is well suited to find the H0 through its unique signature of the weak p decay. No H0 event has been found. The 90% confidence upper limit for the observed frequency of production of the H° dibaryon per inelastic πA collision amounts to 1.5 ·104. Cross section upper limits are estimated for C, Cu and Pb targets, also with 90% confidence level.

Original languageEnglish
Pages (from-to)407-412
Number of pages6
JournalAnnalen der Physik
Volume498
Issue number6-8
DOIs
Publication statusPublished - 1986

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strangeness
transverse momentum
confidence
nuclei
chambers
signatures
interactions
collisions
cross sections
decay

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Bärwolff, H., Friebel, W., Gensch, U., Kundt, U., Lanius, K., Roloff, H., ... Zakrzewski, J. A. (1986). Search for the Neutral Dibaryon with Strangeness −2 in High Transverse Momentum π Nucleus Interactions at 40 GeV/c. Annalen der Physik, 498(6-8), 407-412. https://doi.org/10.1002/andp.19864980604

Search for the Neutral Dibaryon with Strangeness −2 in High Transverse Momentum π Nucleus Interactions at 40 GeV/c. / Bärwolff, H.; Friebel, W.; Gensch, U.; Kundt, U.; Lanius, K.; Roloff, H.; Schreiber, H. J.; Dénes, E.; Diosy, L.; Gemesy, T.; Jenik, L.; Krasnovsky, J.; Pinter, Gy; Wagner, I.; Bannikov, A. V.; Böhm, J.; Grishkevich, Ya V.; Khomenko, B. A.; Krumstein, Z. V.; Merekov, Yu P.; Petrukhin, V. I.; Safarik, K.; Shelkov, G. A.; Tkachev, L. G.; Vertogradov, L. S.; Soukup, T.; Valkarova, A.; Valkar, S.; Zavada, P.; Penev, V. N.; Sklovskaja, A. I.; Jarishvili, A. K.; Kharchillava, A. I.; Lomtadze, T. A.; Razdolskaya, L. A.; Dominik, W.; Gajewski, J.; Majewski, S.; Pniewska, K.; Ropelewski, L.; Zakrzewski, J. A.

In: Annalen der Physik, Vol. 498, No. 6-8, 1986, p. 407-412.

Research output: Contribution to journalArticle

Bärwolff, H, Friebel, W, Gensch, U, Kundt, U, Lanius, K, Roloff, H, Schreiber, HJ, Dénes, E, Diosy, L, Gemesy, T, Jenik, L, Krasnovsky, J, Pinter, G, Wagner, I, Bannikov, AV, Böhm, J, Grishkevich, YV, Khomenko, BA, Krumstein, ZV, Merekov, YP, Petrukhin, VI, Safarik, K, Shelkov, GA, Tkachev, LG, Vertogradov, LS, Soukup, T, Valkarova, A, Valkar, S, Zavada, P, Penev, VN, Sklovskaja, AI, Jarishvili, AK, Kharchillava, AI, Lomtadze, TA, Razdolskaya, LA, Dominik, W, Gajewski, J, Majewski, S, Pniewska, K, Ropelewski, L & Zakrzewski, JA 1986, 'Search for the Neutral Dibaryon with Strangeness −2 in High Transverse Momentum π Nucleus Interactions at 40 GeV/c', Annalen der Physik, vol. 498, no. 6-8, pp. 407-412. https://doi.org/10.1002/andp.19864980604
Bärwolff, H. ; Friebel, W. ; Gensch, U. ; Kundt, U. ; Lanius, K. ; Roloff, H. ; Schreiber, H. J. ; Dénes, E. ; Diosy, L. ; Gemesy, T. ; Jenik, L. ; Krasnovsky, J. ; Pinter, Gy ; Wagner, I. ; Bannikov, A. V. ; Böhm, J. ; Grishkevich, Ya V. ; Khomenko, B. A. ; Krumstein, Z. V. ; Merekov, Yu P. ; Petrukhin, V. I. ; Safarik, K. ; Shelkov, G. A. ; Tkachev, L. G. ; Vertogradov, L. S. ; Soukup, T. ; Valkarova, A. ; Valkar, S. ; Zavada, P. ; Penev, V. N. ; Sklovskaja, A. I. ; Jarishvili, A. K. ; Kharchillava, A. I. ; Lomtadze, T. A. ; Razdolskaya, L. A. ; Dominik, W. ; Gajewski, J. ; Majewski, S. ; Pniewska, K. ; Ropelewski, L. ; Zakrzewski, J. A. / Search for the Neutral Dibaryon with Strangeness −2 in High Transverse Momentum π Nucleus Interactions at 40 GeV/c. In: Annalen der Physik. 1986 ; Vol. 498, No. 6-8. pp. 407-412.
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abstract = "Analysing high transverse momentum π− nucleus interactions at 40 GeV/c, a search has been made for the hypothetical dibaryon H0 with strangeness −2, spin‐parity 0+ and mass below the two lambda mass. The data came from an experiment performed with a streamer chamber which is well suited to find the H0 through its unique signature of the weak p decay. No H0 event has been found. The 90{\%} confidence upper limit for the observed frequency of production of the H° dibaryon per inelastic π−A collision amounts to 1.5 ·10−4. Cross section upper limits are estimated for C, Cu and Pb targets, also with 90{\%} confidence level.",
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T1 - Search for the Neutral Dibaryon with Strangeness −2 in High Transverse Momentum π− Nucleus Interactions at 40 GeV/c

AU - Bärwolff, H.

AU - Friebel, W.

AU - Gensch, U.

AU - Kundt, U.

AU - Lanius, K.

AU - Roloff, H.

AU - Schreiber, H. J.

AU - Dénes, E.

AU - Diosy, L.

AU - Gemesy, T.

AU - Jenik, L.

AU - Krasnovsky, J.

AU - Pinter, Gy

AU - Wagner, I.

AU - Bannikov, A. V.

AU - Böhm, J.

AU - Grishkevich, Ya V.

AU - Khomenko, B. A.

AU - Krumstein, Z. V.

AU - Merekov, Yu P.

AU - Petrukhin, V. I.

AU - Safarik, K.

AU - Shelkov, G. A.

AU - Tkachev, L. G.

AU - Vertogradov, L. S.

AU - Soukup, T.

AU - Valkarova, A.

AU - Valkar, S.

AU - Zavada, P.

AU - Penev, V. N.

AU - Sklovskaja, A. I.

AU - Jarishvili, A. K.

AU - Kharchillava, A. I.

AU - Lomtadze, T. A.

AU - Razdolskaya, L. A.

AU - Dominik, W.

AU - Gajewski, J.

AU - Majewski, S.

AU - Pniewska, K.

AU - Ropelewski, L.

AU - Zakrzewski, J. A.

PY - 1986

Y1 - 1986

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