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1. The energy dependence of flow in Ni induced collisions from 400A to 1970A MeV

Author

Chance, J, Albergo, Sebastiano Francesco, Bieser, F, Brady, Fp, Caccia, Z, Cebra, D, Chacon, Ad, Choi, Y, Costa, Salvatore, Elliott, Jb, Gilkes, M, Hauger, Ja, Hirsch, As, Hjort, El, Insolia, A, Justice, M, Keane, D, Kintner, Jc, Lisa, Ma, Matis, Hs, Mcmahan, M, Mcparland, C, Olson, Dl, Partlan, Md, Porile, Nt, Potenza, R, Rai, G, Rasmussen, J, Ritter, Hg, Romanski, J, Romero, Jl, Russo, Gv, Scharenberg, R, Scott, A, Shao, Y, Srivastava, B, Symons, Tjm, Tincknell, M, Tuve', Cristina Natalina, Wang, S, Warren, P, Wieman, Hh, Wienold, T, and Wolf, K.

Published
1997

2. Delta resonance production in Ni-58+Cu collisions at E=1.97A GeV

Author

Hjort, El, Albergo, Sebastiano Francesco, Bieser, F, Brady, Fp, Caccia, Z, Cebra, Da, Chacon, Ad, Chance, Jl, Choi, Y, Costa, Salvatore, Elliott, Jb, Gilkes, Ml, Hauger, Ja, Hirsch, As, Insolia, Antonio, Justice, M, Keane, D, Kintner, Jc, Lisa, Ma, Matis, Hs, Mcmahan, M, Mcparland, C, Olson, Dl, Partlan, Md, Porile, Nt, Potenza, R, Rai, G, Rasmussen, J, Ritter, Hg, Romanski, J, Romero, Jl, Russo, Gv, Scharenberg, Rp, Scott, A, Shao, Y, Srivastava, Bk, Symons, Tjm, Tincknell, M, Tuve', Cristina Natalina, Wang, S, Warren, Pg, Wieman, Hh, Wienold, T, and Wolf, K.

Published
1997

3. Pion Flow and Anti-Flow in 1.15 A GeV Au + Au

Author

Kintner, Jc, Albergo, Sebastiano Francesco, Bieser, F, Brady, Fp, Caccia, Z, Cebra, D, Chacon, Ad, Chance, Jl, Choi, Y, Costa, Salvatore, Elliott, Jb, Gilkes, Ml, Hauger, Ja, Hirsch, As, Hjort, El, Insolia, Antonio, Justice, M, Keane, D, Lisa, Ma, Matis, Hs, Mcmahan, M, Mcparland, C, Olson, Dl, Partlan, Md, Porile, Nt, Potenza, R, Rai, G, Rasmussen, J, Ritter, Hg, Romanski, J, Romero, Jl, Russo, Gv, Scharenberg, R, Scott, A, Shao, Y, Srivastava, B, Symons, Tjm, Tincknell, M, Tuve', Cristina Natalina, Wang, S, Warren, P, Wieman, Hh, Wienold, T, and Wolf, K.

Published
1997

4. Flow and Multifragmentation in Nuclear Collisions at Intermediate Energies

Author

Ritter, Hg, Albergo, S., Bieser, F., Brady, Fp, Caccia, Z., Cebra, Da, Chacon, Ad, Chance, Jl, Choi, Y., Costa, S., Elliott, Jb, Gilkes, Ml, Hauger, Ja, Hirsch, As, Hjort, El, Antonio Insolia, Justice, M., Keane, D., Kintner, J., Lindenstruth, V., Lisa, Ma, Lynen, U., Matis, Hs, Mcmahan, M., Mcparland, C., Mueller, Wfj, Olson, Dl, Partlan, Md, Porile, Nt, Potenza, R., Rai, G., Rasmussen, J., Romanski, J., Romero, Jl, Russo, Gv, Sann, H., Scharenberg, Rp, Scott, A., Shao, Y., Srivastava, Bk, Symons, Tjm, Tincknell, Ml, Tuve, C., Wang, S., Warren, Pg, Wieman, Hh, and Wolfe, Kl

Subjects
Nuclear Physics
Published
1994

5. Two-stage multifragmentation of 1A GeV Kr, La, and Au

Author

Hauger, Ja, Srivastava, Bk, Albergo, S., Bieser, F., Brady, Fp, Caccia, Z., Cebra, Da, Chacon, Ad, Chance, Jl, Choi, Y., Costa, S., Elliott, Jb, Gilkes, Ml, Hirsch, As, Hjort, El, Insolia, A., Justice, M., Keane, D., Kintner, Jc, Lindenstruth, V., Lisa, Ma, Matis, Hs, Mcmahan, M., Mcparland, C., Muller, Wfj, Olson, Dl, Partlan, Md, Porile, Nt, Potenza, R., Rai, C., Rasmussen, J., Ritter, Hg, Romanski, J., Romero, Jl, Russo, Gv, Sann, H., Scharenberg, Rp, Scott, A., Shao, Y., Symons, Tjm, Tincknell, M., Cristina TUVE', Wang, S., Warren, P., Wieman, Hh, Wienold, T., and Wolf, K.

6. Comparison of the 1A (GeVAu)-Au-197+C interaction with first-stage transport codes

Author

Srivastava, Bk, Albergo, S., Bieser, F., Brady, Fp, Caccia, Z., Cebra, Da, Chacon, Ad, Chance, Jl, Choi, Y., Costa, S., Danielewicz, P., Elliott, Jb, Gilkes, Ml, Hauger, Ja, Hirsch, As, Hjort, El, Insolia, A., Justice, M., Keane, D., Kintner, Jc, Lindenstruth, V., Lisa, Ma, Matis, Hs, Mcmahan, M., Mcparland, C., Muller, Wfj, Olson, Dl, Partlan, Md, Porile, Nt, Potenza, R., Rai, G., Rasmussen, J., Ritter, Hg, Romanski, J., Romero, Jl, Russo, Gv, Sann, H., Scharenberg, Rp, Scott, A., Shao, Y., Symons, Tjm, Tincknell, M., Cristina TUVE', Wang, S., Warren, P., Wieman, Hh, Wienold, T., and Wolf, K.

7. Near-threshold production of the multistrange Xi- hyperon.

Author

Chung P, Ajitanand NN, Alexander JM, Anderson M, Best D, Brady FP, Case T, Caskey W, Cebra D, Chance JL, Cole B, Crowe K, Das AC, Draper JE, Gilkes ML, Gushue S, Heffner M, Hirsch AS, Hjort EL, Holzmann W, Huo L, Issah M, Justice M, Kaplan M, Keane D, Kintner JC, Klay J, Krofcheck D, Lacey RA, Lauret J, Lisa MA, Liu H, Liu YM, Milan J, McGrath R, Milosevich Z, Odyniec G, Olson DL, Panitkin S, Porile NT, Rai G, Ritter HG, Romero JL, Scharenberg R, Srivastava B, Stone NT, Symons TJ, Taranenko A, Whitfield J, Wienold T, Witt R, Wood L, Zhang WN, and Oeschler H

Abstract

The yield for the multistrange Xi(-) hyperon has been measured in 6A GeV Au+Au collisions via reconstruction of its decay products pi(-) and Lambda, the latter also being reconstructed from its daughter tracks of pi(-) and p. The measurement is rather close to the threshold for Xi(-) production and therefore provides an important test of model predictions. The measured yield for Xi(-) and Lambda are compared for several centralities. In central collisions the Xi(-) yield is found to be in excellent agreement with statistical and transport model predictions, suggesting that multistrange hadron production approaches chemical equilibrium in high baryon density nuclear matter.

Published
2003
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8. Comparison of source images for protons, pi-'s, and lambda's in 6A GeV Au+Au collisions.

Author

Chung P, Ajitanand NN, Alexander JM, Anderson M, Best D, Brady FP, Case T, Caskey W, Cebra D, Chance JL, Cole B, Crowe K, Das AC, Draper JE, Gilkes ML, Gushue S, Heffner M, Hirsch AS, Hjort EL, Holzmann W, Huo L, Issah M, Justice M, Kaplan M, Keane D, Kintner JC, Klay J, Krofcheck D, Lacey RA, Lauret J, Lisa MA, Liu H, Liu YM, McGrath R, Milosevich Z, Odyniec G, Olson DL, Panitkin S, Porile NT, Rai G, Ritter HG, Romero JL, Scharenberg R, Srivastava B, Stone NT, Symons TJ, Taranenko A, Whitfield J, Witt R, Wood L, Zhang WN, Brown D, Pratt S, Wang F, and Danielewicz P

Abstract

Source images are extracted from two-particle correlations constructed from strange and nonstrange hadrons produced in 6A GeV Au+Au collisions. Very different source images result from pp vs p Lambda vs pi(-)pi(-) correlations. Scaling by transverse mass can describe the apparent source size ratio for p/pi(-) but not for Lambda/pi(-) or Lambda/p. These observations suggest important differences in the space-time emission histories for protons, pions, and neutral strange baryons produced in the same events.

Published
2003
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9. Longitudinal flow of protons from (2-8)A GeV central Au+Au collisions.

Author

Klay JL, Ajitanand NN, Alexander JM, Anderson MG, Best D, Brady FP, Case T, Caskey W, Cebra D, Chance JL, Chung P, Cole B, Crowe K, Das AC, Draper JE, Gilkes ML, Gushue S, Heffner M, Hirsch AS, Hjort EL, Huo L, Justice M, Kaplan M, Keane D, Kintner JC, Krofcheck D, Lacey RA, Lauret J, Law C, Lisa MA, Liu H, Liu YM, McGrath R, Milosevich Z, Odyniec G, Olson DL, Panitkin SY, Pinkenburg C, Porile NT, Rai G, Ritter HG, Romero JL, Scharenberg R, Schroeder L, Srivastava B, Stone NT, Symons TJ, Wang S, Wells R, Whitfield J, Wienold T, Witt R, Wood L, and Zhang WN

Abstract

Rapidity distributions of protons from central 197Au+197Au collisions measured by the E895 Collaboration in the energy range from (2-8)A GeV at the Brookhaven AGS are presented. Longitudinal flow parameters derived using a thermal model including collective longitudinal expansion are extracted from these distributions. The results show an approximately linear increase in the longitudinal flow velocity, (L), as a function of the logarithm of beam energy.

Published
2002
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10. Directed flow of lambda hyperons in (2-6 )A GeV Au+Au collisions.

Author

Chung P, Ajitanand NN, Alexander JM, Anderson M, Best D, Brady FP, Case T, Caskey W, Cebra D, Chance JL, Cole B, Crowe K, Das A, Draper JE, Gilkes ML, Gushue S, Heffner M, Hirsch AS, Hjort EL, Huo L, Justice M, Kaplan M, Keane D, Kintner JC, Klay J, Krofcheck D, Lacey RA, Lauret J, Lisa MA, Liu H, Liu YM, McGrath R, Milosevich Z, Odyniec G, Olson DL, Panitkin SY, Pinkenburg C, Porile NT, Rai G, Ritter HG, Romero JL, Scharenberg R, Schroeder L, Srivastava B, Stone NT, Symons TJ, Wienold T, Witt R, Whitfield J, Wood L, and Zhang WN

Abstract

Directed flow measurements for Lambda hyperons are presented and compared to those for protons produced in the same Au+Au collisions (2A, 4A, and 6A GeV; b<5-6 fm). The measurements indicate that Lambda hyperons flow consistently in the same direction but with smaller magnitudes. A strong positive flow [for Lambdas] has been predicted in calculations which include the influence of the Lambda-nucleon potential. The experimental flow ratio Lambda/p is in qualitative agreement with expectations (approximately 2/3) from the quark counting rule at 2A GeV but is found to decrease with increasing beam energy.

Published
2001
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11. Nuclear multifragmentation, percolation, and the fisher droplet model: common features of reducibility and thermal scaling

Author

Elliott JB, Moretto LG, Phair L, Wozniak GJ, Albergo S, Bieser F, Brady FP, Caccia Z, Cebra DA, Chacon AD, Chance JL, Choi Y, Costa S, Gilkes ML, Hauger JA, Hirsch AS, Hjort EL, Insolia A, Justice M, Keane D, Kintner JC, Lindenstruth V V, Lisa MA, Matis HS, McMahan M, and McParland C

Abstract

It is shown that the Fisher droplet model, percolation, and nuclear multifragmentation share the common features of reducibility (stochasticity in multiplicity distributions) and thermal scaling (one-fragment production probabilities are Boltzmann factors). Barriers obtained, for cluster production on percolation lattices, from the Boltzmann factors show a power-law dependence on cluster size with an exponent of 0.42+/-0.02. The EOS Collaboration Au multifragmentation data yield barriers with a power-law exponent of 0.68+/-0.03. Values of the surface energy coefficient of a low density nuclear system are also extracted.

Published
2000
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12. Antiflow of K(0)(s) mesons in 6A GeV Au + Au collisions

Author

Chung P, Ajitanand NN, Alexander JM, Anderson M, Best D, Brady FP, Case T, Caskey W, Cebra D, Chance JL, Cole B, Crowe K, Das A, Draper JE, Gilkes ML, Gushue S, Heffner M, Hirsch AS, Hjort EL, Huo L, Justice M, Kaplan M, Keane D, Kintner JC, Klay J, and Krofcheck D

Abstract

We have measured the sideward flow of neutral strange ( K(0)(s)) mesons in 6A GeV Au+Au collisions. A prominent antiflow signal is observed for an impact parameter range ( b less, similar7 fm) which spans central and midcentral events. Since the K(0)(s) scattering cross section is relatively small in nuclear matter, this observation suggests that the in-medium kaon vector potential plays an important role in high density nuclear matter.

Published
2000
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13. Bombarding energy dependence of pi(-) interferometry at the brookhaven AGS

Author

Lisa MA, Ajitanand NN, Alexander JM, Anderson M, Best D, Brady FP, Case T, Caskey W, Cebra D, Chance JL, Chung P, Cole B, Crowe K, Das AC, Draper JE, Gilkes ML, Gushue S, Heffner M, Hirsch AS, Hjort EL, Huo L, Justice M, Kaplan M, Keane D, Kintner JC, and Klay J

Abstract

We present the first excitation function of pi(-) intensity interferometry at Alternating Gradient Synchrotron (AGS) energies (2-8 A GeV). The sensitivity of the multidimensional correlation functions to the geometry and dynamics of the pion-emitting system provides a stringent test of transport models of heavy ion collisions. Detailed comparisons with a realistic transport model, both with and without an explicit nuclear mean field, suggest that the beam energy evolution in the reaction dynamics is different in the model than in the data. A significantly increased pi(-) emission time scale, which has been suggested as a signal of the onset of the transition to quark-gluon plasma, is not observed.

Published
2000
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14. Dynamics of the Multifragmentation of 1A GeV Gold on Carbon.

Author

Hauger JA, Albergo S, Bieser F, Brady FP, Caccia Z, Cebra DA, Chacon AD, Chance JL, Choi Y, Costa S, Elliott JB, Gilkes ML, Hirsch AS, Hjort EL, Insolia A, Justice M, Keane D, Kintner JC, Lindenstruth V V, Lisa MA, Lynen U, Matis HS, McMahan M, McParland C, Müller WF, Olson DL, Partlan MD, Porile NT, Potenza R, Rai G, Rasmussen J, Ritter HG, Romanski J, Romero JL, Russo GV, Sann H, Scharenberg R, Scott A, Shao Y, Srivastava BK, Symons TJ, Tincknell M, Tuvé C, Wang S, Warren P, Wieman HH, Wienold T, and Wolf K

Published
1996
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15. In-plane retardation of collective expansion in Au+Au collisions.

Author

Wang S, Lisa MA, Albergo S, Bieser F, Brady FP, Caccia Z, Cebra DA, Chacon AD, Chance JL, Choi Y, Costa S, Elliott JB, Gilkes ML, Hauger JA, Hirsch AS, Hjort EL, Insolia A, Justice M, Keane D, Kintner J, Lindenstruth V V, Liu H, Matis HS, McMahan M, McParland C, Olson DL, Partlan MD, Porile NT, Potenza R, Rai G, Rasmussen J, Ritter HG, Romanski J, Romero JL, Russo GV, Scharenberg RP, Scott A, Shao Y, Srivastava BK, Symons TJ, Tincknell ML, Tuvè C, Warren PG, Weerasundara D, Wieman HH, and Wolf KL

Published
1996
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17. Radial flow in Au+Au collisions at E=(0.25-1.15)A GeV.

Author

Lisa MA, Albergo S, Bieser F, Brady FP, Caccia Z, Cebra DA, Chacon AD, Chance JL, Choi Y, Costa S, Elliott JB, Gilkes ML, Hauger JA, Hirsch AS, Hjort EL, Insolia A, Justice M, Keane D, Kintner J, Matis HS, McMahan M, McParland C, Olson DL, Partlan MD, Porile NT, Potenza R, Rai G, Rasmussen J, Ritter HG, Romanski J, Romero JL, Russo GV, Scharenberg R, Scott A, Shao Y, Srivastava BK, Symons TJ, Tincknell M, Tuvé C, Wang S, Warren P, Westfall GD, Wieman HH, and Wolf K

Published
1995
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18. Fragment flow in Au+Au collisions.

Author

Partlan MD, Albergo S, Bieser F, Brady FP, Caccia Z, Cebra D, Chacon AD, Chance J, Choi Y, Costa S, Elliott JB, Gilkes ML, Hauger JA, Hirsch AS, Hjort EL, Insolia A, Justice M, Keane D, Kintner J, Lisa MA, Matis HS, McMahan M, McParland C, Olson DL, Peilert G, Porile NT, Potenza R, Rai G, Rasmussen J, Ritter HG, Romanski J, Romero JL, Russo GV, Scharenberg RP, Scott A, Shao Y, Srivastava BK, Symons TJ, Tincknell ML, Tuvé C, Wang S, Warren PG, Wieman HH, and Wolf K

Published
1995
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20. Light Fragment Production and Power Law Behavior in Au + Au Collisions.

Author

Wang S, Albergo S, Bieser F, Brady FP, Caccia Z, Cebra DA, Chacon AD, Chance JL, Choi Y, Costa S, Elliott JB, Gilkes ML, Hauger JA, Hirsch AS, Hjort EL, Insolia A, Justice M, Keane D, Kintner J, Lisa MA, Matis HS, McMahan M, McParland C, Olson DL, Partlan MD, Porile NT, Potenza R, Rai G, Rasmussen J, Ritter HG, Romanski J, Romero JL, Russo GV, Scharenberg RP, Scott A, Shao Y, Srivastava BK, Symons TJ, Tincknell ML, Tuvè C, Warren PG, Weerasundara D, Wieman HH, and Wolf KL

Published
1995
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21. Determination of critical exponents from the multifragmentation of gold nuclei.

Author

Gilkes ML, Albergo S, Bieser F, Brady FP, Caccia Z, Cebra DA, Chacon AD, Chance JL, Choi Y, Costa S, Elliott JB, Hauger JA, Hirsch AS, Hjort EL, Insolia A, Justice M, Keane D, Kintner JC, Lindenstruth V V, Lisa MA, Lynen U, Matis HS, McMahan M, McParland C, Müller WF, Olson DL, Partlan MD, Porile NT, Potenza R, Rai G, Rasmussen J, Ritter HG, Romanski J, Romero JL, Russo GV, Sann H, Scharenberg R, Scott A, Shao Y, Srivastava BK, Symons TJ, Tincknell M, Tuvé C, Wang S, Warren P, Wieman HH, and Wolf K

Published
1994
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