[Formula Presented]-dibaryon and hypernucleus formation in the [Formula Presented] reaction at rest

Jung Keun Ahn, S. Aoki, K. S. Chung, M. S. Chung, H. En’yo, T. Fukuda, H. Funahashi, Y. Goto, A. Higashi, M. Ieiri, T. Iijima, M. Iinuma, K. Imai, Y. Itow, J. M. Lee, S. Makino, A. Masaike, Y. Matsuda, Y. Matsuyama, S. MiharaC. Nagoshi, I. Nomura, I. S. Park, N. Saito, M. Sekimoto, Y. M. Shin, K. S. Sim, R. Susukita, R. Takashima, F. Takeutchi, P. Tlustý, S. Weibe, S. Yokkaichi, K. Yoshida, M. Yoshida, T. Yoshida, S. Yamashita

Research output: Contribution to journalArticle

Abstract

Stopped-[Formula Presented] reactions have been investigated with respect to H-dibaryon and hypernucleus formation with a scintillating fiber detector. Out of [Formula Presented] tagged [Formula Presented] particles via the [Formula Presented] reaction we obtained 72 stopping [Formula Presented] events with [Formula Presented] background events after imposing kinematic constraints. Hypernuclear production has been studied by observing free Λ decays in the stopped-[Formula Presented] reactions. From the observed Λ momentum spectrum, we have found the hypernuclear production rates to be [Formula Presented] and [Formula Presented] for double/twin-Λ hypernucleus, single-Λ hypernucleus, and no hypernucleus cases, respectively. With the same sample, we set upper limits on R (stopped-[Formula Presented] stopped-[Formula Presented] all) for [Formula Presented] decaying into [Formula Presented] and [Formula Presented] for [Formula Presented] masses just below [Formula Presented] mass threshold and for [Formula Presented] lifetime range [Formula Presented] The upper limits on [Formula Presented] are [Formula Presented] assuming all of the [Formula Presented] decay into each decay mode. Our results give a tight constraint on the existence of the bound [Formula Presented] in comparison with the theoretical estimates of Aerts and Dover, albeit with different target nuclei.

Original languageEnglish
Number of pages1
JournalPhysical Review C - Nuclear Physics
Volume62
Issue number5
DOIs
Publication statusPublished - 2000 Jan 1
Externally publishedYes

Fingerprint

hypernuclei
decay

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

[Formula Presented]-dibaryon and hypernucleus formation in the [Formula Presented] reaction at rest. / Ahn, Jung Keun; Aoki, S.; Chung, K. S.; Chung, M. S.; En’yo, H.; Fukuda, T.; Funahashi, H.; Goto, Y.; Higashi, A.; Ieiri, M.; Iijima, T.; Iinuma, M.; Imai, K.; Itow, Y.; Lee, J. M.; Makino, S.; Masaike, A.; Matsuda, Y.; Matsuyama, Y.; Mihara, S.; Nagoshi, C.; Nomura, I.; Park, I. S.; Saito, N.; Sekimoto, M.; Shin, Y. M.; Sim, K. S.; Susukita, R.; Takashima, R.; Takeutchi, F.; Tlustý, P.; Weibe, S.; Yokkaichi, S.; Yoshida, K.; Yoshida, M.; Yoshida, T.; Yamashita, S.

In: Physical Review C - Nuclear Physics, Vol. 62, No. 5, 01.01.2000.

Research output: Contribution to journalArticle

Ahn, JK, Aoki, S, Chung, KS, Chung, MS, En’yo, H, Fukuda, T, Funahashi, H, Goto, Y, Higashi, A, Ieiri, M, Iijima, T, Iinuma, M, Imai, K, Itow, Y, Lee, JM, Makino, S, Masaike, A, Matsuda, Y, Matsuyama, Y, Mihara, S, Nagoshi, C, Nomura, I, Park, IS, Saito, N, Sekimoto, M, Shin, YM, Sim, KS, Susukita, R, Takashima, R, Takeutchi, F, Tlustý, P, Weibe, S, Yokkaichi, S, Yoshida, K, Yoshida, M, Yoshida, T & Yamashita, S 2000, '[Formula Presented]-dibaryon and hypernucleus formation in the [Formula Presented] reaction at rest', Physical Review C - Nuclear Physics, vol. 62, no. 5. https://doi.org/10.1103/PhysRevC.62.055201
Ahn, Jung Keun ; Aoki, S. ; Chung, K. S. ; Chung, M. S. ; En’yo, H. ; Fukuda, T. ; Funahashi, H. ; Goto, Y. ; Higashi, A. ; Ieiri, M. ; Iijima, T. ; Iinuma, M. ; Imai, K. ; Itow, Y. ; Lee, J. M. ; Makino, S. ; Masaike, A. ; Matsuda, Y. ; Matsuyama, Y. ; Mihara, S. ; Nagoshi, C. ; Nomura, I. ; Park, I. S. ; Saito, N. ; Sekimoto, M. ; Shin, Y. M. ; Sim, K. S. ; Susukita, R. ; Takashima, R. ; Takeutchi, F. ; Tlustý, P. ; Weibe, S. ; Yokkaichi, S. ; Yoshida, K. ; Yoshida, M. ; Yoshida, T. ; Yamashita, S. / [Formula Presented]-dibaryon and hypernucleus formation in the [Formula Presented] reaction at rest. In: Physical Review C - Nuclear Physics. 2000 ; Vol. 62, No. 5.
@article{267c394928dd4725a4ed80599d823409,
title = "[Formula Presented]-dibaryon and hypernucleus formation in the [Formula Presented] reaction at rest",
abstract = "Stopped-[Formula Presented] reactions have been investigated with respect to H-dibaryon and hypernucleus formation with a scintillating fiber detector. Out of [Formula Presented] tagged [Formula Presented] particles via the [Formula Presented] reaction we obtained 72 stopping [Formula Presented] events with [Formula Presented] background events after imposing kinematic constraints. Hypernuclear production has been studied by observing free Λ decays in the stopped-[Formula Presented] reactions. From the observed Λ momentum spectrum, we have found the hypernuclear production rates to be [Formula Presented] and [Formula Presented] for double/twin-Λ hypernucleus, single-Λ hypernucleus, and no hypernucleus cases, respectively. With the same sample, we set upper limits on R (stopped-[Formula Presented] stopped-[Formula Presented] all) for [Formula Presented] decaying into [Formula Presented] and [Formula Presented] for [Formula Presented] masses just below [Formula Presented] mass threshold and for [Formula Presented] lifetime range [Formula Presented] The upper limits on [Formula Presented] are [Formula Presented] assuming all of the [Formula Presented] decay into each decay mode. Our results give a tight constraint on the existence of the bound [Formula Presented] in comparison with the theoretical estimates of Aerts and Dover, albeit with different target nuclei.",
author = "Ahn, {Jung Keun} and S. Aoki and Chung, {K. S.} and Chung, {M. S.} and H. En’yo and T. Fukuda and H. Funahashi and Y. Goto and A. Higashi and M. Ieiri and T. Iijima and M. Iinuma and K. Imai and Y. Itow and Lee, {J. M.} and S. Makino and A. Masaike and Y. Matsuda and Y. Matsuyama and S. Mihara and C. Nagoshi and I. Nomura and Park, {I. S.} and N. Saito and M. Sekimoto and Shin, {Y. M.} and Sim, {K. S.} and R. Susukita and R. Takashima and F. Takeutchi and P. Tlust{\'y} and S. Weibe and S. Yokkaichi and K. Yoshida and M. Yoshida and T. Yoshida and S. Yamashita",
year = "2000",
month = "1",
day = "1",
doi = "10.1103/PhysRevC.62.055201",
language = "English",
volume = "62",
journal = "Physical Review C - Nuclear Physics",
issn = "0556-2813",
publisher = "American Physical Society",
number = "5",

}

TY - JOUR

T1 - [Formula Presented]-dibaryon and hypernucleus formation in the [Formula Presented] reaction at rest

AU - Ahn, Jung Keun

AU - Aoki, S.

AU - Chung, K. S.

AU - Chung, M. S.

AU - En’yo, H.

AU - Fukuda, T.

AU - Funahashi, H.

AU - Goto, Y.

AU - Higashi, A.

AU - Ieiri, M.

AU - Iijima, T.

AU - Iinuma, M.

AU - Imai, K.

AU - Itow, Y.

AU - Lee, J. M.

AU - Makino, S.

AU - Masaike, A.

AU - Matsuda, Y.

AU - Matsuyama, Y.

AU - Mihara, S.

AU - Nagoshi, C.

AU - Nomura, I.

AU - Park, I. S.

AU - Saito, N.

AU - Sekimoto, M.

AU - Shin, Y. M.

AU - Sim, K. S.

AU - Susukita, R.

AU - Takashima, R.

AU - Takeutchi, F.

AU - Tlustý, P.

AU - Weibe, S.

AU - Yokkaichi, S.

AU - Yoshida, K.

AU - Yoshida, M.

AU - Yoshida, T.

AU - Yamashita, S.

PY - 2000/1/1

Y1 - 2000/1/1

N2 - Stopped-[Formula Presented] reactions have been investigated with respect to H-dibaryon and hypernucleus formation with a scintillating fiber detector. Out of [Formula Presented] tagged [Formula Presented] particles via the [Formula Presented] reaction we obtained 72 stopping [Formula Presented] events with [Formula Presented] background events after imposing kinematic constraints. Hypernuclear production has been studied by observing free Λ decays in the stopped-[Formula Presented] reactions. From the observed Λ momentum spectrum, we have found the hypernuclear production rates to be [Formula Presented] and [Formula Presented] for double/twin-Λ hypernucleus, single-Λ hypernucleus, and no hypernucleus cases, respectively. With the same sample, we set upper limits on R (stopped-[Formula Presented] stopped-[Formula Presented] all) for [Formula Presented] decaying into [Formula Presented] and [Formula Presented] for [Formula Presented] masses just below [Formula Presented] mass threshold and for [Formula Presented] lifetime range [Formula Presented] The upper limits on [Formula Presented] are [Formula Presented] assuming all of the [Formula Presented] decay into each decay mode. Our results give a tight constraint on the existence of the bound [Formula Presented] in comparison with the theoretical estimates of Aerts and Dover, albeit with different target nuclei.

AB - Stopped-[Formula Presented] reactions have been investigated with respect to H-dibaryon and hypernucleus formation with a scintillating fiber detector. Out of [Formula Presented] tagged [Formula Presented] particles via the [Formula Presented] reaction we obtained 72 stopping [Formula Presented] events with [Formula Presented] background events after imposing kinematic constraints. Hypernuclear production has been studied by observing free Λ decays in the stopped-[Formula Presented] reactions. From the observed Λ momentum spectrum, we have found the hypernuclear production rates to be [Formula Presented] and [Formula Presented] for double/twin-Λ hypernucleus, single-Λ hypernucleus, and no hypernucleus cases, respectively. With the same sample, we set upper limits on R (stopped-[Formula Presented] stopped-[Formula Presented] all) for [Formula Presented] decaying into [Formula Presented] and [Formula Presented] for [Formula Presented] masses just below [Formula Presented] mass threshold and for [Formula Presented] lifetime range [Formula Presented] The upper limits on [Formula Presented] are [Formula Presented] assuming all of the [Formula Presented] decay into each decay mode. Our results give a tight constraint on the existence of the bound [Formula Presented] in comparison with the theoretical estimates of Aerts and Dover, albeit with different target nuclei.

UR - http://www.scopus.com/inward/record.url?scp=85035256549&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85035256549&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.62.055201

DO - 10.1103/PhysRevC.62.055201

M3 - Article

AN - SCOPUS:85035256549

VL - 62

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 5

ER -