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arXiv · nucl-ex/0605033

Lifetime of 19Ne*(4.03 MeV)

R. Kanungo·T. K. Alexander·A. N. Andreyev·G. C. Ball·R. S. Chakrawarthy·M. Chicoine·R. Churchman·B. Davids·J. S. Forster·S. Gujrathi·G. Hackman·D. Howell·J. R. Leslie·A. C. Morton·S. Mythili·C. J. Pearson·J. J. Ressler·C. Ruiz·H. Savajols·M. A. Schumaker·I. Tanihata·P. Walden·S. Yen
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Abstract

The Doppler-shift attenuation method was applied to measure the lifetime of the 4.03 MeV state in 19Ne. Utilizing a 3He-implanted Au foil as a target, the state was populated using the 20Ne(3He,alpha)19Ne reaction in inverse kinematics at a 20Ne beam energy of 34 MeV. De-excitation gamma rays were detected in coincidence with alpha particles. At the 1 sigma level, the lifetime was determined to be 11 +4, -3 fs and at the 95.45% confidence level the lifetime is 11 +8, -7 fs.

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R. Kanungo, T. K. Alexander, A. N. Andreyev, G. C. Ball, R. S. Chakrawarthy, M. Chicoine, R. Churchman, B. Davids, J. S. Forster, S. Gujrathi, G. Hackman, D. Howell, J. R. Leslie, A. C. Morton, S. Mythili, C. J. Pearson, J. J. Ressler, C. Ruiz, H. Savajols, M. A. Schumaker, I. Tanihata, P. Walden, S. Yen. 2006-08-03. Lifetime of 19Ne*(4.03 MeV). https://doi.org/10.1103/physrevc.74.045803

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