Final state interaction or a <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>3</mn></mrow></msup></mrow><mi mathvariant="normal">H</mi></math></span> excited state?

G. V. Rogachev; J. J. Kolata; V. Z. Goldberg; L. V. Grigorenko; F. D. Becchetti; P. A. DeYoung; J. D. Hinnefeld; L. O. Lamm; J. Lupton; T. W. O’Donnell; D. A. Roberts; S. Shaheen

doi:10.1103/PhysRevC.68.024602

Final state interaction or a $^{3} H$ excited state?

G. V. Rogachev, J. J. Kolata, V. Z. Goldberg, L. V. Grigorenko, F. D. Becchetti, P. A. DeYoung, J. D. Hinnefeld, L. O. Lamm, J. Lupton, T. W. O’Donnell, D. A. Roberts, and S. Shaheen

Phys. Rev. C 68, 024602 – Published 15 August 2003

Abstract

An inclusive $α$ -particle spectrum from the $^{1} H (^{6} He, α)$ reaction has been measured at a $^{6} He$ laboratory energy of 23.9 MeV. A resonancelike structure is observed at an $α$ -particle lab energy of about 20 MeV, which corresponds to an energy of $E_{nd} = 0.6 MeV$ in the $n - d$ channel. An analysis of the spectrum shows that it cannot be explained by the effect of binary final-state interactions. The hypotheses that this structure represents (a) a new excited state of tritium or (b) a three-body final-state interaction are discussed.

Received 24 April 2003

DOI:https://doi.org/10.1103/PhysRevC.68.024602

Authors & Affiliations

G. V. Rogachev¹, J. J. Kolata¹, V. Z. Goldberg^1,*, L. V. Grigorenko^2,3, F. D. Becchetti⁴, P. A. DeYoung⁵, J. D. Hinnefeld⁶, L. O. Lamm¹, J. Lupton⁴, T. W. O’Donnell⁴, D. A. Roberts⁴, and S. Shaheen⁷

¹Physics Department, University of Notre Dame, Notre Dame, Indiana 46556-5670, USA
²Gesellschaft für Schwerionenforschung GmbH, Planckstrasse 1, D-64291 Darmstadt, Germany
³Russian Research Center “The Kurchatov Institute,” 123182 Moscow, Russia
⁴Physics Department, University of Michigan, Ann Arbor, Michigan 48109-1120, USA
⁵Physics Department, Hope College, Holland, Michigan 49422, USA
⁶Physics Department, Indiana University South Bend, South Bend, Indiana 46615, USA
⁷Physics Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia

^*Present address: Texas A& M University, College Station, TX.

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Vol. 68, Iss. 2 — August 2003

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