Formation of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">H</mi></mrow><mprescripts></mprescripts><mrow><mi>Λ</mi></mrow><mrow><mn>4</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span> hypernuclei from <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>K</mi></mrow><mrow><mo>−</mo></mrow></msup></mrow></math></span> absorption at rest on light nuclei

H. Tamura; T. Yamazaki; R. S. Hayano; T. Ishikawa; M. Iwasaki; T. Motoki; H. Outa; H. Sakurai; E. Takada; W. Brückner; S. Paul; B. Povh; A. Sakaguchi; R. Schüssler; H. Döbbeling; K. H. Tanaka

doi:10.1103/PhysRevC.40.R479

Rapid Communication

Formation of ${}_{Λ}^{4}H$ hypernuclei from $K^{-}$ absorption at rest on light nuclei

H. Tamura, T. Yamazaki, R. S. Hayano, T. Ishikawa, M. Iwasaki, T. Motoki, H. Outa, H. Sakurai, E. Takada, W. Brückner, S. Paul, B. Povh, A. Sakaguchi, R. Schüssler, H. Döbbeling, and K. H. Tanaka

Phys. Rev. C 40, R479(R) – Published 1 August 1989

Abstract

Formation of ${}_{Λ}^{4}H$ hypernuclei from $K^{-}$ absorption at rest on light nuclear targets was studied by measuring monochromatic $π^{-}' s$ from the two-body decay, ${}_{Λ}^{4}H \to {}^{4}{He} + π^{-}$ . The formation probabilities of ${}_{Λ}^{4}H$ from ${}^{4}{He}$ , ${}^{7}{Li}$ , ${}^{9}{Be}$ , ${}^{12}C$ , and ${}^{16}O$ targets were extracted to be (0.74±0.10)× $10^{- 2}$ , (3.0±0.4)× $10^{- 2}$ , (1.57±0.18)× $10^{- 2}$ , (1.00±0.14)× $10^{- 2}$ , and (0.47±0.08)× $10^{- 2}$ per stopped $K^{-}$ , respectively. Possible mechanisms for the production of ${}_{Λ}^{4}H$ are discussed.

Received 20 June 1988

DOI:https://doi.org/10.1103/PhysRevC.40.R479

Authors & Affiliations

H. Tamura^* and T. Yamazaki

Institute for Nuclear Study, University of Tokyo, Tanashi, Tokyo 188, Japan

R. S. Hayano, T. Ishikawa, M. Iwasaki, T. Motoki, H. Outa, H. Sakurai, and E. Takada

Department of Physics and Meson Science Laboratory, University of Tokyo, Tokyo 113, Japan

W. Brückner, S. Paul, B. Povh, A. Sakaguchi^†, and R. Schüssler

Max Planck Institut für Kernphysik, Heidelberg D-6900, Federal Republic of Germany

H. Döbbeling

Physikalisches Institut der Universität Heidelberg, Heidelberg D-6900, Federal Republic of Germany

K. H. Tanaka

National Laboratory for High Energy Physics (KEK), Tsukuba, Ibaraki 305, Japan

^*Present address: Department of Physics, University of Tokyo, Hongo, Tokyo 113, Japan.
^†Present address: Department of Physics, Hiroshima University, Hiroshima 730, Japan.

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Vol. 40, Iss. 2 — August 1989

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