Caloric curve of 8 GeV/cπ-, p̄+ 197Au reactions

A. Ruangma; R. Laforest; E. Martin; E. Ramakrishnan; D. J. Rowland; M. Veselsky; E. M. Winchester; S. J. Yennello; L. Beaulieu; W. C. Hsi; K. Kwiatkowski; T. Lefort; V. E. Viola; A. Botvina; R. G. Korteling; L. Pienkowski; H. Breuer; S. Gushue; L. P. Remsberg; B. Back

doi:10.1103/PhysRevC.66.044603

Caloric curve of 8 GeV/cπ^-, p̄+ ¹⁹⁷Au reactions

A. Ruangma, R. Laforest, E. Martin, E. Ramakrishnan, D. J. Rowland, M. Veselsky, E. M. Winchester, S. J. Yennello, L. Beaulieu, W. C. Hsi, K. Kwiatkowski, T. Lefort, V. E. Viola, A. Botvina, R. G. Korteling, L. Pienkowski, H. Breuer, S. Gushue, L. P. Remsberg, B. Back

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Abstract

The relationship between nuclear temperature and excitation energy of hot nuclei formed by 8 GeV/c negative pion and antiproton beams incident on ¹⁹⁷Au has been investigated with the ISiS 4 π detector array at the BNL AGS accelerator. The double-isotope-ratio technique was used to calculate the temperature of the hot system. The two thermometers used, (p/d-³He/⁴He) and (d/t-³He/⁴He), are in agreement below E*/A ∼8 MeV when corrected for secondary decay. Caloric curves derived from successive segments of the H and He kinetic energy spectra show a systematic decrease in temperature as the kinetic energy bin decreases, consistent with "cooling curve" behavior. When extrapolated to the evaporative-peak region, these results provide good agreement with caloric curves measured for similar systems. The caloric curves from this experiment are also compared with the predictions from the SMM multifragmentation model.

Original language	English
Article number	044603
Pages (from-to)	446031-4460310
Number of pages	4014280
Journal	Physical Review C - Nuclear Physics
Volume	66
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.66.044603
State	Published - Oct 1 2002

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Ruangma, A., Laforest, R., Martin, E., Ramakrishnan, E., Rowland, D. J., Veselsky, M., Winchester, E. M., Yennello, S. J., Beaulieu, L., Hsi, W. C., Kwiatkowski, K., Lefort, T., Viola, V. E., Botvina, A., Korteling, R. G., Pienkowski, L., Breuer, H., Gushue, S., Remsberg, L. P., & Back, B. (2002). Caloric curve of 8 GeV/cπ^-, p̄+ ¹⁹⁷Au reactions. Physical Review C - Nuclear Physics, 66(4), 446031-4460310. Article 044603. https://doi.org/10.1103/PhysRevC.66.044603

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title = "Caloric curve of 8 GeV/cπ-, {\=p}+ 197Au reactions",

abstract = "The relationship between nuclear temperature and excitation energy of hot nuclei formed by 8 GeV/c negative pion and antiproton beams incident on 197Au has been investigated with the ISiS 4 π detector array at the BNL AGS accelerator. The double-isotope-ratio technique was used to calculate the temperature of the hot system. The two thermometers used, (p/d-3He/4He) and (d/t-3He/4He), are in agreement below E*/A ∼8 MeV when corrected for secondary decay. Caloric curves derived from successive segments of the H and He kinetic energy spectra show a systematic decrease in temperature as the kinetic energy bin decreases, consistent with {"}cooling curve{"} behavior. When extrapolated to the evaporative-peak region, these results provide good agreement with caloric curves measured for similar systems. The caloric curves from this experiment are also compared with the predictions from the SMM multifragmentation model.",

author = "A. Ruangma and R. Laforest and E. Martin and E. Ramakrishnan and Rowland, {D. J.} and M. Veselsky and Winchester, {E. M.} and Yennello, {S. J.} and L. Beaulieu and Hsi, {W. C.} and K. Kwiatkowski and T. Lefort and Viola, {V. E.} and A. Botvina and Korteling, {R. G.} and L. Pienkowski and H. Breuer and S. Gushue and Remsberg, {L. P.} and B. Back",

year = "2002",

month = oct,

day = "1",

doi = "10.1103/PhysRevC.66.044603",

language = "English",

volume = "66",

pages = "446031--4460310",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

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Ruangma, A, Laforest, R, Martin, E, Ramakrishnan, E, Rowland, DJ, Veselsky, M, Winchester, EM, Yennello, SJ, Beaulieu, L, Hsi, WC, Kwiatkowski, K, Lefort, T, Viola, VE, Botvina, A, Korteling, RG, Pienkowski, L, Breuer, H, Gushue, S, Remsberg, LP & Back, B 2002, 'Caloric curve of 8 GeV/cπ^-, p̄+ ¹⁹⁷Au reactions', Physical Review C - Nuclear Physics, vol. 66, no. 4, 044603, pp. 446031-4460310. https://doi.org/10.1103/PhysRevC.66.044603

TY - JOUR

T1 - Caloric curve of 8 GeV/cπ-, p̄+ 197Au reactions

AU - Ruangma, A.

AU - Laforest, R.

AU - Martin, E.

AU - Ramakrishnan, E.

AU - Rowland, D. J.

AU - Veselsky, M.

AU - Winchester, E. M.

AU - Yennello, S. J.

AU - Beaulieu, L.

AU - Hsi, W. C.

AU - Kwiatkowski, K.

AU - Lefort, T.

AU - Viola, V. E.

AU - Botvina, A.

AU - Korteling, R. G.

AU - Pienkowski, L.

AU - Breuer, H.

AU - Gushue, S.

AU - Remsberg, L. P.

AU - Back, B.

PY - 2002/10/1

Y1 - 2002/10/1

N2 - The relationship between nuclear temperature and excitation energy of hot nuclei formed by 8 GeV/c negative pion and antiproton beams incident on 197Au has been investigated with the ISiS 4 π detector array at the BNL AGS accelerator. The double-isotope-ratio technique was used to calculate the temperature of the hot system. The two thermometers used, (p/d-3He/4He) and (d/t-3He/4He), are in agreement below E*/A ∼8 MeV when corrected for secondary decay. Caloric curves derived from successive segments of the H and He kinetic energy spectra show a systematic decrease in temperature as the kinetic energy bin decreases, consistent with "cooling curve" behavior. When extrapolated to the evaporative-peak region, these results provide good agreement with caloric curves measured for similar systems. The caloric curves from this experiment are also compared with the predictions from the SMM multifragmentation model.

AB - The relationship between nuclear temperature and excitation energy of hot nuclei formed by 8 GeV/c negative pion and antiproton beams incident on 197Au has been investigated with the ISiS 4 π detector array at the BNL AGS accelerator. The double-isotope-ratio technique was used to calculate the temperature of the hot system. The two thermometers used, (p/d-3He/4He) and (d/t-3He/4He), are in agreement below E*/A ∼8 MeV when corrected for secondary decay. Caloric curves derived from successive segments of the H and He kinetic energy spectra show a systematic decrease in temperature as the kinetic energy bin decreases, consistent with "cooling curve" behavior. When extrapolated to the evaporative-peak region, these results provide good agreement with caloric curves measured for similar systems. The caloric curves from this experiment are also compared with the predictions from the SMM multifragmentation model.

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U2 - 10.1103/PhysRevC.66.044603

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M3 - Article

AN - SCOPUS:14244271130

SN - 0556-2813

VL - 66

SP - 446031

EP - 4460310

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 4

M1 - 044603

ER -

Caloric curve of 8 GeV/cπ^-, p̄+ ¹⁹⁷Au reactions

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