Experimental study of the 12c(kstopped-, π0)λ12B reaction

M. W. Ahmed; X. Cui; A. Empl; E. V. Hungerford; K. J. Lan; M. Youn; R. E. Chrien; R. Gill; P. Pile; A. Rusek; R. Sutter; J. Bjoraker; D. Dehnhard; J. M. O'Donnell; J. Gerald; H. Juengst; J. H. Liu; J. C. Peng; C. L. Morris; C. M. Riedel; H. A. Thiessen; D. Androic; I. Bertovic; M. Furic; T. Petkovic; M. Planinic; L. Tang; V. Zeps

Experimental study of the ¹²c(k_stopped^-, π⁰)_λ¹²B reaction

M. W. Ahmed, X. Cui, A. Empl, E. V. Hungerford, K. J. Lan, M. Youn, R. E. Chrien, R. Gill, P. Pile, A. Rusek, R. Sutter, J. Bjoraker, D. Dehnhard, J. M. O'Donnell, J. Gerald, H. Juengst, J. H. Liu, J. C. Peng, C. L. Morris, C. M. RiedelH. A. Thiessen, D. Androic, I. Bertovic, M. Furic, T. Petkovic, M. Planinic, L. Tang, V. Zeps

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Abstract

The (K_stopped^-, π⁰) strangeness and charge changing reaction was investigated by producing a _λ¹²B hypernucleus from a carbon target, The branching ratio for K^- capture to the ground and p-shell states of this hypernucleus was found to be (0.28±0.08) ×10^-3 and (0.35±0.09) ×10^-3, respectively, which after correction for isospin was lower than a previously measured value for the ¹²C(K_stopped^-, π^-) _λ¹²C reaction, but still above the theoretical predictions for the ground state. The experiment obtained a missing-mass resolution comparable to in-flight reactions, however the higher background and lower selectivity of the K_stopped^- reaction limits its usefulness in the study of new hypernuclear species.

Original language	English (US)
Article number	064004
Pages (from-to)	640041-6400413
Number of pages	5760373
Journal	Physical Review C - Nuclear Physics
Volume	68
Issue number	6
State	Published - Dec 2003

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Nuclear and High Energy Physics

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Ahmed, M. W., Cui, X., Empl, A., Hungerford, E. V., Lan, K. J., Youn, M., Chrien, R. E., Gill, R., Pile, P., Rusek, A., Sutter, R., Bjoraker, J., Dehnhard, D., O'Donnell, J. M., Gerald, J., Juengst, H., Liu, J. H., Peng, J. C., Morris, C. L., ... Zeps, V. (2003). Experimental study of the ¹²c(k_stopped^-, π⁰)_λ¹²B reaction. Physical Review C - Nuclear Physics, 68(6), 640041-6400413. Article 064004.

Ahmed, MW, Cui, X, Empl, A, Hungerford, EV, Lan, KJ, Youn, M, Chrien, RE, Gill, R, Pile, P, Rusek, A, Sutter, R, Bjoraker, J, Dehnhard, D, O'Donnell, JM, Gerald, J, Juengst, H, Liu, JH, Peng, JC, Morris, CL, Riedel, CM, Thiessen, HA, Androic, D, Bertovic, I, Furic, M, Petkovic, T, Planinic, M, Tang, L & Zeps, V 2003, 'Experimental study of the ¹²c(k_stopped^-, π⁰)_λ¹²B reaction', Physical Review C - Nuclear Physics, vol. 68, no. 6, 064004, pp. 640041-6400413.

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title = "Experimental study of the 12c(kstopped-, π0)λ12B reaction",

abstract = "The (Kstopped-, π0) strangeness and charge changing reaction was investigated by producing a λ12B hypernucleus from a carbon target, The branching ratio for K- capture to the ground and p-shell states of this hypernucleus was found to be (0.28±0.08) ×10-3 and (0.35±0.09) ×10-3, respectively, which after correction for isospin was lower than a previously measured value for the 12C(Kstopped-, π-) λ12C reaction, but still above the theoretical predictions for the ground state. The experiment obtained a missing-mass resolution comparable to in-flight reactions, however the higher background and lower selectivity of the Kstopped- reaction limits its usefulness in the study of new hypernuclear species.",

author = "Ahmed, {M. W.} and X. Cui and A. Empl and Hungerford, {E. V.} and Lan, {K. J.} and M. Youn and Chrien, {R. E.} and R. Gill and P. Pile and A. Rusek and R. Sutter and J. Bjoraker and D. Dehnhard and O'Donnell, {J. M.} and J. Gerald and H. Juengst and Liu, {J. H.} and Peng, {J. C.} and Morris, {C. L.} and Riedel, {C. M.} and Thiessen, {H. A.} and D. Androic and I. Bertovic and M. Furic and T. Petkovic and M. Planinic and L. Tang and V. Zeps",

year = "2003",

month = dec,

language = "English (US)",

volume = "68",

pages = "640041--6400413",

journal = "Physical Review C - Nuclear Physics",

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number = "6",

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T1 - Experimental study of the 12c(kstopped-, π0)λ12B reaction

AU - Ahmed, M. W.

AU - Cui, X.

AU - Empl, A.

AU - Hungerford, E. V.

AU - Lan, K. J.

AU - Youn, M.

AU - Chrien, R. E.

AU - Gill, R.

AU - Pile, P.

AU - Rusek, A.

AU - Sutter, R.

AU - Bjoraker, J.

AU - Dehnhard, D.

AU - O'Donnell, J. M.

AU - Gerald, J.

AU - Juengst, H.

AU - Liu, J. H.

AU - Peng, J. C.

AU - Morris, C. L.

AU - Riedel, C. M.

AU - Thiessen, H. A.

AU - Androic, D.

AU - Bertovic, I.

AU - Furic, M.

AU - Petkovic, T.

AU - Planinic, M.

AU - Tang, L.

AU - Zeps, V.

PY - 2003/12

Y1 - 2003/12

N2 - The (Kstopped-, π0) strangeness and charge changing reaction was investigated by producing a λ12B hypernucleus from a carbon target, The branching ratio for K- capture to the ground and p-shell states of this hypernucleus was found to be (0.28±0.08) ×10-3 and (0.35±0.09) ×10-3, respectively, which after correction for isospin was lower than a previously measured value for the 12C(Kstopped-, π-) λ12C reaction, but still above the theoretical predictions for the ground state. The experiment obtained a missing-mass resolution comparable to in-flight reactions, however the higher background and lower selectivity of the Kstopped- reaction limits its usefulness in the study of new hypernuclear species.

AB - The (Kstopped-, π0) strangeness and charge changing reaction was investigated by producing a λ12B hypernucleus from a carbon target, The branching ratio for K- capture to the ground and p-shell states of this hypernucleus was found to be (0.28±0.08) ×10-3 and (0.35±0.09) ×10-3, respectively, which after correction for isospin was lower than a previously measured value for the 12C(Kstopped-, π-) λ12C reaction, but still above the theoretical predictions for the ground state. The experiment obtained a missing-mass resolution comparable to in-flight reactions, however the higher background and lower selectivity of the Kstopped- reaction limits its usefulness in the study of new hypernuclear species.

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M3 - Article

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SN - 0556-2813

VL - 68

SP - 640041

EP - 6400413

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 6

M1 - 064004

ER -

Experimental study of the ¹²c(k_stopped^-, π⁰)_λ¹²B reaction

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