Production of 4 ΛΛH hypernuclei

Jung Keun Ahn, S. Ajimura, H. Akikawa, B. Bassalleck, A. Berdoz, D. Carman, R. E. Chrien, C. A. Davis, P. Eugenio, H. Fischer, G. B. Franklin, J. Franz, T. Fukuda, L. Gan, H. Hotchi, A. Ichikawa, K. Imai, S. H. Kahana, P. Khaustov, T. KishimotoP. Koran, H. Kohri, A. Kourepin, K. Kubota, M. Landry, M. May, C. Meyer, Z. Meziani, S. Minami, T. Miyachi, T. Nagae, J. Nakano, H. Outa, K. Paschke, P. Pile, M. Prokhabatilov, B. P. Quinn, V. Rasin, A. Rusek, H. Schmitt, R. A. Schumacher, M. Sekimoto, K. Shileev, Y. Shimizu, R. Sutter, T. Tamagawa, L. Tang, K. Tanida, K. Yamamoto, L. Yuan

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

An experiment demonstrating the production of double-Λ hypernuclei in reactions on 9Be was carried out at the D6 line in the BNL alternating-gradient synchrotron. The technique was the observation of pions produced in sequential mesonic weak decay, each pion associated with one unit of strangeness change. The results indicate the production of a significant number of the double hypernucleus 4 ΛΛH and the twin hypernuclei 4 ΛH and 3 ΛH. The relevant decay chains are discussed and a simple model of the production mechanism is presented. An implication of this experiment is that the existence of an S = −2 dibaryon more than a few MeV below the Λ Λ mass is unlikely.

Original languageEnglish
Pages (from-to)132504-1-132504-4
JournalPhysical Review Letters
Volume87
Issue number13
DOIs
Publication statusPublished - 2001 Sep 24
Externally publishedYes

Fingerprint

hypernuclei
pions
strangeness
decay
synchrotrons
gradients

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Ahn, J. K., Ajimura, S., Akikawa, H., Bassalleck, B., Berdoz, A., Carman, D., ... Yuan, L. (2001). Production of 4 ΛΛH hypernuclei. Physical Review Letters, 87(13), 132504-1-132504-4. https://doi.org/10.1103/PhysRevLett.87.132504

Production of 4 ΛΛH hypernuclei. / Ahn, Jung Keun; Ajimura, S.; Akikawa, H.; Bassalleck, B.; Berdoz, A.; Carman, D.; Chrien, R. E.; Davis, C. A.; Eugenio, P.; Fischer, H.; Franklin, G. B.; Franz, J.; Fukuda, T.; Gan, L.; Hotchi, H.; Ichikawa, A.; Imai, K.; Kahana, S. H.; Khaustov, P.; Kishimoto, T.; Koran, P.; Kohri, H.; Kourepin, A.; Kubota, K.; Landry, M.; May, M.; Meyer, C.; Meziani, Z.; Minami, S.; Miyachi, T.; Nagae, T.; Nakano, J.; Outa, H.; Paschke, K.; Pile, P.; Prokhabatilov, M.; Quinn, B. P.; Rasin, V.; Rusek, A.; Schmitt, H.; Schumacher, R. A.; Sekimoto, M.; Shileev, K.; Shimizu, Y.; Sutter, R.; Tamagawa, T.; Tang, L.; Tanida, K.; Yamamoto, K.; Yuan, L.

In: Physical Review Letters, Vol. 87, No. 13, 24.09.2001, p. 132504-1-132504-4.

Research output: Contribution to journalArticle

Ahn, JK, Ajimura, S, Akikawa, H, Bassalleck, B, Berdoz, A, Carman, D, Chrien, RE, Davis, CA, Eugenio, P, Fischer, H, Franklin, GB, Franz, J, Fukuda, T, Gan, L, Hotchi, H, Ichikawa, A, Imai, K, Kahana, SH, Khaustov, P, Kishimoto, T, Koran, P, Kohri, H, Kourepin, A, Kubota, K, Landry, M, May, M, Meyer, C, Meziani, Z, Minami, S, Miyachi, T, Nagae, T, Nakano, J, Outa, H, Paschke, K, Pile, P, Prokhabatilov, M, Quinn, BP, Rasin, V, Rusek, A, Schmitt, H, Schumacher, RA, Sekimoto, M, Shileev, K, Shimizu, Y, Sutter, R, Tamagawa, T, Tang, L, Tanida, K, Yamamoto, K & Yuan, L 2001, 'Production of 4 ΛΛH hypernuclei', Physical Review Letters, vol. 87, no. 13, pp. 132504-1-132504-4. https://doi.org/10.1103/PhysRevLett.87.132504
Ahn JK, Ajimura S, Akikawa H, Bassalleck B, Berdoz A, Carman D et al. Production of 4 ΛΛH hypernuclei. Physical Review Letters. 2001 Sep 24;87(13):132504-1-132504-4. https://doi.org/10.1103/PhysRevLett.87.132504
Ahn, Jung Keun ; Ajimura, S. ; Akikawa, H. ; Bassalleck, B. ; Berdoz, A. ; Carman, D. ; Chrien, R. E. ; Davis, C. A. ; Eugenio, P. ; Fischer, H. ; Franklin, G. B. ; Franz, J. ; Fukuda, T. ; Gan, L. ; Hotchi, H. ; Ichikawa, A. ; Imai, K. ; Kahana, S. H. ; Khaustov, P. ; Kishimoto, T. ; Koran, P. ; Kohri, H. ; Kourepin, A. ; Kubota, K. ; Landry, M. ; May, M. ; Meyer, C. ; Meziani, Z. ; Minami, S. ; Miyachi, T. ; Nagae, T. ; Nakano, J. ; Outa, H. ; Paschke, K. ; Pile, P. ; Prokhabatilov, M. ; Quinn, B. P. ; Rasin, V. ; Rusek, A. ; Schmitt, H. ; Schumacher, R. A. ; Sekimoto, M. ; Shileev, K. ; Shimizu, Y. ; Sutter, R. ; Tamagawa, T. ; Tang, L. ; Tanida, K. ; Yamamoto, K. ; Yuan, L. / Production of 4 ΛΛH hypernuclei. In: Physical Review Letters. 2001 ; Vol. 87, No. 13. pp. 132504-1-132504-4.
@article{5ffc5e84245d45c0a9141322a74408be,
title = "Production of 4 ΛΛH hypernuclei",
abstract = "An experiment demonstrating the production of double-Λ hypernuclei in reactions on 9Be was carried out at the D6 line in the BNL alternating-gradient synchrotron. The technique was the observation of pions produced in sequential mesonic weak decay, each pion associated with one unit of strangeness change. The results indicate the production of a significant number of the double hypernucleus 4 ΛΛH and the twin hypernuclei 4 ΛH and 3 ΛH. The relevant decay chains are discussed and a simple model of the production mechanism is presented. An implication of this experiment is that the existence of an S = −2 dibaryon more than a few MeV below the Λ Λ mass is unlikely.",
author = "Ahn, {Jung Keun} and S. Ajimura and H. Akikawa and B. Bassalleck and A. Berdoz and D. Carman and Chrien, {R. E.} and Davis, {C. A.} and P. Eugenio and H. Fischer and Franklin, {G. B.} and J. Franz and T. Fukuda and L. Gan and H. Hotchi and A. Ichikawa and K. Imai and Kahana, {S. H.} and P. Khaustov and T. Kishimoto and P. Koran and H. Kohri and A. Kourepin and K. Kubota and M. Landry and M. May and C. Meyer and Z. Meziani and S. Minami and T. Miyachi and T. Nagae and J. Nakano and H. Outa and K. Paschke and P. Pile and M. Prokhabatilov and Quinn, {B. P.} and V. Rasin and A. Rusek and H. Schmitt and Schumacher, {R. A.} and M. Sekimoto and K. Shileev and Y. Shimizu and R. Sutter and T. Tamagawa and L. Tang and K. Tanida and K. Yamamoto and L. Yuan",
year = "2001",
month = "9",
day = "24",
doi = "10.1103/PhysRevLett.87.132504",
language = "English",
volume = "87",
pages = "132504--1--132504--4",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "13",

}

TY - JOUR

T1 - Production of 4 ΛΛH hypernuclei

AU - Ahn, Jung Keun

AU - Ajimura, S.

AU - Akikawa, H.

AU - Bassalleck, B.

AU - Berdoz, A.

AU - Carman, D.

AU - Chrien, R. E.

AU - Davis, C. A.

AU - Eugenio, P.

AU - Fischer, H.

AU - Franklin, G. B.

AU - Franz, J.

AU - Fukuda, T.

AU - Gan, L.

AU - Hotchi, H.

AU - Ichikawa, A.

AU - Imai, K.

AU - Kahana, S. H.

AU - Khaustov, P.

AU - Kishimoto, T.

AU - Koran, P.

AU - Kohri, H.

AU - Kourepin, A.

AU - Kubota, K.

AU - Landry, M.

AU - May, M.

AU - Meyer, C.

AU - Meziani, Z.

AU - Minami, S.

AU - Miyachi, T.

AU - Nagae, T.

AU - Nakano, J.

AU - Outa, H.

AU - Paschke, K.

AU - Pile, P.

AU - Prokhabatilov, M.

AU - Quinn, B. P.

AU - Rasin, V.

AU - Rusek, A.

AU - Schmitt, H.

AU - Schumacher, R. A.

AU - Sekimoto, M.

AU - Shileev, K.

AU - Shimizu, Y.

AU - Sutter, R.

AU - Tamagawa, T.

AU - Tang, L.

AU - Tanida, K.

AU - Yamamoto, K.

AU - Yuan, L.

PY - 2001/9/24

Y1 - 2001/9/24

N2 - An experiment demonstrating the production of double-Λ hypernuclei in reactions on 9Be was carried out at the D6 line in the BNL alternating-gradient synchrotron. The technique was the observation of pions produced in sequential mesonic weak decay, each pion associated with one unit of strangeness change. The results indicate the production of a significant number of the double hypernucleus 4 ΛΛH and the twin hypernuclei 4 ΛH and 3 ΛH. The relevant decay chains are discussed and a simple model of the production mechanism is presented. An implication of this experiment is that the existence of an S = −2 dibaryon more than a few MeV below the Λ Λ mass is unlikely.

AB - An experiment demonstrating the production of double-Λ hypernuclei in reactions on 9Be was carried out at the D6 line in the BNL alternating-gradient synchrotron. The technique was the observation of pions produced in sequential mesonic weak decay, each pion associated with one unit of strangeness change. The results indicate the production of a significant number of the double hypernucleus 4 ΛΛH and the twin hypernuclei 4 ΛH and 3 ΛH. The relevant decay chains are discussed and a simple model of the production mechanism is presented. An implication of this experiment is that the existence of an S = −2 dibaryon more than a few MeV below the Λ Λ mass is unlikely.

UR - http://www.scopus.com/inward/record.url?scp=85037256227&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85037256227&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.87.132504

DO - 10.1103/PhysRevLett.87.132504

M3 - Article

AN - SCOPUS:85037256227

VL - 87

SP - 132504-1-132504-4

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 13

ER -