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192 results on '"Yennello, S.J."'

5. Extending the dynamic range of electronics in a Time Projection Chamber

Author

Estee, J., Lynch, W.G., Barney, J., Cerizza, G., Jhang, G., Lee, J.W., Wang, R., Isobe, T., Kaneko, M., Kurata-Nishimura, M., Murakami, T., Shane, R., Tangwancharoen, S., Tsang, C.Y., Tsang, M.B., Hong, B., Lasko, P., Łukasik, J., McIntosh, A.B., Pawłowski, P., Pelczar, K., Sakurai, H., Santamaria, C., Suzuki, D., Yennello, S.J., and Zhang, Y.

Published
2019
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7. Constraining nucleon effective masses with flow and stopping observables from the SπRIT experiment

Author

Tsang, C.Y., Kurata-Nishimura, M., Tsang, M.B., Lynch, W.G., Zhang, Y.X., Barney, J., Estee, J., Jhang, G., Wang, R., Kaneko, M., Lee, J.W., Isobe, T., Murakami, T., Ahn, D.S., Atar, L., Aumann, T., Baba, H., Boretzky, K., Brzychczyk, J., Cerizza, G., Chiga, N., Fukuda, N., Gasparic, I., Hong, B., Horvat, A., Ieki, K., Inabe, N., Kim, Y.J., Kobayashi, T., Kondo, Y., Lasko, P., Lee, H.S., Leifels, Y., Łukasik, J., Manfredi, J., McIntosh, A.B., Morfouace, P., Nakamura, T., Nakatsuka, N., Nishimura, S., Otsu, H., Pawłowski, P., Pelczar, K., Rossi, D., Sakurai, H., Santamaria, C., Sato, H., Scheit, H., Shane, R., Shimizu, Y., Simon, H., Snoch, A., Sochocka, A., Sumikama, T., Suzuki, H., Suzuki, D., Takeda, H., Tangwancharoen, S., Törnqvist, H., Togano, Y., Xiao, Z.G., Yennello, S.J., and Zhang, Y.

Published
2024
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11. The liquid to vapor phase transition in excited nuclei

Author

Elliott, J.B., Moretto, L.G., Phair, L., Wozniak, G.J., Beaulieu, L., Breuer, H., Korteling, R.G., Kwiatkowski, K., Lefort, T., Pienkowski, L., Ruangma, A., Viola, V.E., and Yennello, S.J.

Subjects
nuclear multifragmentation liquid vapor phase transition
Abstract

For many years it has been speculated that excited nuclei would undergo a liquid to vapor phase transition. For even longer, it has been known that clusterization in a vapor carries direct information on the liquid-vapor equilibrium according to Fisher's droplet model. Now the thermal component of the 8 GeV/c pion + 197 Au multifragmentation data of the ISiS Collaboration is shown to follow the scaling predicted by Fisher's model, thus providing the strongest evidence yet of the liquid to vapor phase transition.

Published
2001

12. The coexistence curve of finite charged nuclear matter

Author

Elliott, J.B., Moretto, L.G., Phair, L., Wozniak, G.J., Beaulieu, L., Breuer, H., Korteling, R.G., Kwiatkowski, K., Lefort, T., Pienkowski, L., Ruangma, A., Viola, V.E., Yennello, S.J., Albergo, S., Bieser, F., Brady, F.P., Caccia, Z., Cebra, D.A., Chacon, A.D., Chance, J.L., Choi, Y., Costa, S., Gilkes, M.L., Hauger, J.A., Hirsch, A.S., Hjort, E.L., Insolia, A., Justice, M., Keane, D., Kintner, J.C., Lindenstruth, V., Lisa, M.A., Matis, H.S., McMahan, M., McParland, C., Muller, W.F.J., Olson, D.L., Partlan, M.D., Porile, N.T., Potenza, R., Rai, G., Rasmussen, J., Ritter, H.G., Romanski, J., Romero, J.L., Russo, G.V., Sann, H., Scharenberg, R.P., Scott, A., Shao, Y., Srivastava, B.K., Symons, T.J.M., Tincknell, M., Tuve, C., Wang, S., Warren, P., Wieman, H.H., Wienold, T., and Wolf, K.

Subjects
Nuclear physics and radiation physics
Published
2001

13. Advances in 211At production at Texas A&M University

Author

Yennello S.J., McIntosh L.A, Burns J.D., Tereshatov E.E., Tabacaru G., McCann L., Schultz S., Lofton K., Abbott A., Avila G., Berko M., Engelthaler E., Hagel K., Hannaman A., Harvey B., Hood A., McCarthy M., McIntosh A.B., Sorensen M., Tobin Z, and Vonder Haar A.

Subjects
Physics, QC1-999
Abstract

Alpha emitting radionuclides with medically relevant half-lives are interesting for treatment of tumors and other diseases because they deposit large amounts of energy close to the location of the radioisotope. Researchers at the Cyclotron Institute at Texas A&M University are developing a program to produce 211At, an alpha emitter with a medically relevant half-life. The properties of 211At make it a great candidate for targeted alpha therapy for cancer due to its short half-life (7.2 h). Astatine-211 has now been produced multiple times and reliability of this process is being improved.

Published
2021
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15. SπRIT: A time-projection chamber for symmetry-energy studies

Author

Shane, R., McIntosh, A.B., Isobe, T., Lynch, W.G., Baba, H., Barney, J., Chajecki, Z., Chartier, M., Estee, J., Famiano, M., Hong, B., Ieki, K., Jhang, G., Lemmon, R., Lu, F., Murakami, T., Nakatsuka, N., Nishimura, M., Olsen, R., Powell, W., Sakurai, H., Taketani, A., Tangwancharoen, S., Tsang, M.B., Usukura, T., Wang, R., Yennello, S.J., and Yurkon, J.

Published
2015
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20. Rapidity distributions of Z = 1 isotopes and the nuclear symmetry energy from Sn+Sn collisions with radioactive beams at 270 MeV/nucleon

Author

Kaneko, M., primary, Murakami, T., additional, Isobe, T., additional, Kurata-Nishimura, M., additional, Ono, A., additional, Ikeno, N., additional, Barney, J., additional, Cerizza, G., additional, Estee, J., additional, Jhang, G., additional, Lee, J.W., additional, Lynch, W.G., additional, Santamaria, C., additional, Tsang, C.Y., additional, Tsang, M.B., additional, Wang, R., additional, Ahn, D.S., additional, Atar, L., additional, Aumann, T., additional, Baba, H., additional, Boretzky, K., additional, Brzychczyk, J., additional, Chiga, N., additional, Fukuda, N., additional, Gašparić, I., additional, Hong, B., additional, Horvat, A., additional, Ichihara, T., additional, Ieki, K., additional, Inabe, N., additional, Kim, Y.J., additional, Kobayashi, T., additional, Kondo, Y., additional, Lasko, P., additional, Lee, H.S., additional, Leifels, Y., additional, Łukasik, J., additional, Manfredi, J., additional, McIntosh, A.B., additional, Morfouace, P., additional, Nakamura, T., additional, Nakatsuka, N., additional, Nishimura, S., additional, Olsen, R., additional, Otsu, H., additional, Pawłowski, P., additional, Pelczar, K., additional, Rossi, D., additional, Sakurai, H., additional, Sato, H., additional, Scheit, H., additional, Shane, R., additional, Shimizu, Y., additional, Simon, H., additional, Sumikama, T., additional, Suzuki, D., additional, Suzuki, H., additional, Takeda, H., additional, Tangwancharoen, S., additional, Togano, Y., additional, Törnqvist, H., additional, Xiao, Z., additional, Yennello, S.J., additional, Yurkon, J., additional, and Zhang, Y., additional

Published
2021
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21. Symmetry energy investigation with pion production from Sn+Sn systems

Author

Jhang, G., Estee, J., Barney, J., Cerizza, G., Kaneko, M., Lee, J.W., Lynch, W.G., Isobe, T., Kurata-Nishimura, M., Murakami, T., Tsang, C.Y., Tsang, M.B., Wang, R., Ahn, D.S., Atar, L., Aumann, T., Baba, H., Boretzky, K., Brzychczyk, J., Chiga, N., Fukuda, N., Gasparic, I., Hong, B., Horvat, A., Ieki, K., Inabe, N., Kim, Y.J., Kobayashi, T., Kondo, Y., Lasko, P., Lee, H.S., Leifels, Y., Łukasik, J., Manfredi, J., McIntosh, A.B., Morfouace, P., Nakamura, T., Nakatsuka, N., Nishimura, S., Olsen, R., Otsu, H., Pawłowski, P., Pelczar, K., Rossi, D., Sakurai, H., Santamaria, C., Sato, H., Scheit, H., Shane, R., Shimizu, Y., Simon, H., Snoch, A., Sochocka, A., Sosin, Z., Sumikama, T., Suzuki, H., Suzuki, D., Takeda, H., Tangwancharoen, S., Toernqvist, H., Togano, Y., Xiao, Z.G., Yennello, S.J., Yurkon, J., Zhang, Y., Colonna, Maria, Cozma, Dan, Danielewicz, Paweł, Elfner, Hannah, Ikeno, Natsumi, Ko, Che Ming, Mohs, Justin, Oliinychenko, Dmytro, Ono, Akira, Su, Jun, Wang, Yong Jia, Wolter, Hermann, Xu, Jun, Zhang, Ying-Xun, and Zhang, Zhen

Published
2021
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27. Advances in 211At production at Texas A&M University.

Author

Yennello, S.J., McIntosh, L.A, Burns, J.D., Tereshatov, E.E., Tabacaru, G., McCann, L., Schultz, S., Lofton, K., Abbott, A., Avila, G., Berko, M., Engelthaler, E., Hagel, K., Hannaman, A., Harvey, B., Hood, A., McCarthy, M., McIntosh, A.B., Sorensen, M., and Tobin, Z

Subjects
RADIOISOTOPES, HALF-life (Nuclear physics), TARGETED drug delivery, MONOCLONAL antibodies, BISMUTH
Abstract

Alpha emitting radionuclides with medically relevant half-lives are interesting for treatment of tumors and other diseases because they deposit large amounts of energy close to the location of the radioisotope. Researchers at the Cyclotron Institute at Texas A&M University are developing a program to produce 211At, an alpha emitter with a medically relevant half-life. The properties of 211At make it a great candidate for targeted alpha therapy for cancer due to its short half-life (7.2 h). Astatine-211 has now been produced multiple times and reliability of this process is being improved. [ABSTRACT FROM AUTHOR]

Published
2021
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28. Light-ion-induced multifragmentation: The ISiS project

Author

Viola, V.E., Kwiatkowski, K., Beaulieu, L., Bracken, D.S., Breuer, H., Brzychczyk, J., de Souza, R.T., Ginger, D.S., Hsi, W-C., Korteling, R.G., Lefort, T., Lynch, W.G., Morley, K.B., Legrain, R., Pienkowski, L., Pollacco, E.C., Renshaw, E., Ruangma, A., Tsang, M.B., Volant, C., Wang, G., Yennello, S.J., and Yoder, N.R.

Published
2006
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29. Charged particle track reconstruction with SπRIT Time Projection Chamber

Author

Lee, J.W., primary, Jhang, G., additional, Cerizza, G., additional, Barney, J., additional, Estee, J., additional, Isobe, T., additional, Kaneko, M., additional, Kurata-Nishimura, M., additional, Lynch, W.G., additional, Murakami, T., additional, Tsang, C.Y., additional, Tsang, M.B., additional, Wang, R., additional, Hong, B., additional, McIntosh, A.B., additional, Sakurai, H., additional, Santamaria, C., additional, Shane, R., additional, Tangwancharoen, S., additional, Yennello, S.J., additional, and Zhang, Y., additional

Published
2020
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31. Towards the critical behavior for the light nuclei by NIMROD detector

Author

Ma, Y.G., Natowitz, J.B., Wada, R., Hagel, K., Wang, J., Keutgen, T., Majka, Z., Murray, M., Qin, L., Smith, P., Alfaro, R., Cibor, J., Cinausero, M., El Masri, Y., Fabris, D., Fioretto, E., Keksis, A., Lunardon, M., Makeev, A., Marie, N., Martin, E., Martinez-Davalos, A., Menchaca-Rocha, A., Nebbia, G., Prete, G., Rizzi, V., Ruangma, A., Shetty, D.V., Souliotis, G., Staszel, P., Veselsky, M., Viesti, G., Winchester, E.M., and Yennello, S.J.

Published
2005
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32. Resolving multiple particles in a highly segmented silicon array

Author

Paduszynski, T., Sprunger, P., de Souza, R.T., Hudan, S., Alexander, A., Davin, B., Fleener, G., Mcintosh, A., Metelko, C., Moore, R., Peters, N., Poehlman, J., Gauthier, J., Grenier, F., Roy, R., Thériault, D., Bell, E., Garey, J., Iglio, J., Keksis, A.L., Parketon, S., Richers, C., Shetty, D.V., Soisson, S.N., Soulioutis, G.A., Stein, B., and Yennello, S.J.

Published
2005
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34. Mid-rapidity emission in 124Sn, 124Xe + 124Sn, 112Sn reactions at 28 MeV/nucleon

Author

Shetty, D.V, Keksis, A, Martin, E, Ruangma, A, Souliotis, G.A, Veselsky, M, Winchester, E.M, Yennello, S.J, Hagel, K, Ma, Y.G, Makeev, A, Marie, N, Murray, M, Natowitz, J.B, Qin, L, Smith, P, Wada, R, Wang, J, Cinausero, M, Fioretto, E, Prete, G, Fabris, D, Lunardon, M, Nebbia, G, Rizzi, V, Viesti, G, Cibor, J, Majka, Z, Staszel, P, Alfaro, R, Martinez-Davalos, A, Menchaca-Rocha, A, El Masri, Y, and Keutgen, T

Published
2004
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38. Neutron-rich rare isotope production with stable and radioactive beams in the mass range A ∼ 40-60 at beam energy around 15 MeV/nucleon

Author

Papageorgiou, A. Souliotis, G.A. Tshoo, K. Jeong, S.C. Kang, B.H. Kwon, Y.K. Veselsky, M. Yennello, S.J. Bonasera, A.

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

We studied the production of neutron-rich nuclides in multinucleon transfer collisions of stable and radioactive beams (RIB) in the mass range A ∼ 40-60. We first presented our experimental cross section data of projectile fragments from the reaction of 40Ar(15 MeV/nucleon) with 64Ni, 58Ni and 27Al. We then compared them with calculations based on either the deep-inelastic transfer model or the constrained molecular dynamics model, followed by the statistical multifragmentation model. An overall good agreement of the calculations with the experimental data is obtained. We continued with calculations of the reaction of 40Ar (15 MeV/nucleon) with 238U target and then with reactions of 48Ca (15 MeV/nucleon) with 64Ni and 238U targets. In these reactions, very neutron-rich rare isotopes are produced with large cross sections. These nuclides, in turn, can be assumed to form RIB and interact with a subsequent target (preferably 238U), leading to the production of extremely neutron-rich and even new isotopes (e.g. 60Ca) in this mass range. We conclude that multinucleon transfer reactions with stable or RIB at energy around 15 MeV/nucleon offer an effective route to access extremely neutron-rich rare isotopes for nuclear structure or reaction studies. © 2018 IOP Publishing Ltd.

Published
2018

39. Neutron-proton equilibration in 35 MeV/ u collisions of 64,70 Zn + 64,70 Zn and 64 Zn, 64 Ni + 64 Zn, 64 Ni quantified using triplicate probes

Author

May, L.W. Wakhle, A. McIntosh, A.B. Kohley, Z. Behling, S. Bonasera, A. Bonasera, G. Cammarata, P. Hagel, K. Heilborn, L. Jedele, A. Raphelt, A. Manso, A.R. Souliotis, G. Tripathi, R. Youngs, M.D. Zarrella, A. Yennello, S.J.

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

Previous work has quantified the degree of neutron-proton equilibration in heavy-ion nuclear collisions by observing the convergence of isospin observables (such as the isoscaling parameter α) to an expected value based on similar symmetric reaction systems. We present a new signature of equilibration: the convergence of the isospin asymmetry (as quantified by three isoscaling metrics) of two mirror asymmetric reaction systems toward each other rather than a predefined point. For the reactions of 35 MeV/u Zn64,70+Zn64,70 and Zn64,Ni64+Zn64,Ni64 the neutron-proton equilibration was found to be approximately 80%, and this result is compared directly to previous work. © 2018 American Physical Society.

Published
2018

43. Multifragmentation with GeV light-ion beams

Author

Kwiatkowski, K., Hsi, W.-c., Wang, G., Lefort, T., Bracken, D.S., Cornell, E., Foxford, E. Renshaw, Ginger, D.S., Viola, V.E., Yoder, N.R., Korteling, R.G., Pollacco, E.C., Legrain, R., Volant, C., Gimeno-Nogues, F., Laforest, R., Martin, E., Ramakrishnan, E., Rowland, D., Ruangma, A., Winchester, E., Yennello, S.J., Lynch, W.G., Tsang, M.B., Xi, H., Breuer, H., Morley, K.B., Gushue, S., Remsberg, L.P., Pienkowski, L., Brzychezyk, J., Botvina, A., and Friedman, W.A.

Published
1999
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44. Heating nuclei with 8 GeV/c antiprotons

Author

LeFort, T., Kwiatkowski, K., Hsi, W.-c., Beaulieu, L., Leforest, R., Martin, E., Ramakrishnan, E., Rowland, D., Ruangma, A., Winchester, E., Gushue, S., Viola, V.E., Pienkowski, L., Korteling, R.G., Yennello, S.J., Remsberg, L.P., Back, B., and Breuer, H.

Published
1999
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45. Thermal excitation of heavy nuclei with 5–15 GeV/c antiproton, proton and pion beams

Author

Beaulieu, L., Kwiatkowski, K., Hsi, W.-c., Lefort, T., Pienkowski, L., Korteling, R.G., Wang, G., Back, B., Bracken, D.S., Breuer, H., Cornell, E., Gimeno-Nogues, F., Ginger, D.S., Gushue, S., Huang, M.J., Laforest, R., Lynch, W.G., Martin, E., Morley, K.B., Remsberg, L.P., Rowland, D., Ramakrishnan, E., Ruangma, A., Tsang, M.B., Viola, V.E., Winchester, E., Xi, H., and Yennello, S.J.

Published
1999
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46. Studying heavy-ion collisions with coverage near zero degrees using FAUST-QTS

Author

Cammarata, P. Chapman, M.B. McIntosh, A.B. Souliotis, G.A. Bakhtiari, L. Behling, S. Bonasera, G. Heilborn, L.A. Mabiala, J. May, L.W. Raphelt, A. Youngs, M.D. Zarrella, A. Yennello, S.J.

Subjects
Nuclear Experiment
Abstract

Heavy-ion collisions around the Fermi energy provide a rich environment for investigating reaction dynamics and provide an opportunity to explore the transition from quasi-fission to multi-fragmentation. A new detection system, FAUST-QTS, has been commissioned at Texas A&M University in order to investigate the reaction dynamics in this transitional energy regime. FAUST-QTS is constructed through the coupling of the FAUST array to a large bore quadrupole triplet spectrometer, and designed to detect heavy fragments near the beam axis coincident with lighter particles. © 2015 Elsevier B.V. All rights reserved.

Published
2015

47. How much cooler would it be with some more neutrons?: Exploring the asymmetry dependence of the nuclear caloric curve and the liquid-gas phase transition

Author

McIntosh, A.B. Mabiala, J. Bonasera, A. Cammarata, P. Hagel, K. Kohley, Z. Heilborn, L. May, L.W. Marini, P. Raphelt, A. Souliotis, G.A. Wuenschel, S. Zarrella, A. Zheng, H. Yennello, S.J.

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

Despite the long-standing interest in the symmetry energy by the nuclear physics community, much work remains to characterize the equation of state away from the valley of stability and normal density. Although the correlations between the thermodynamic properties (temperature, density, pressure) has been explored, the dependence of these correlations on the neutron-proton asymmetry has only recently been probed experimentally. In this work, we provide evidence for the asymmetry dependence of the nuclear caloric curve using multiple independent probes. Correlations between the temperature, density and pressure when normalized to their critical values exhibit scaling, allowing extraction of the critical point. The location of the critical point shows a dependence on the neutron-proton asymmetry. © 2014 SIF, Springer-Verlag Berlin Heidelberg.

Published
2014

48. Isoscaling of heavy projectile residues and N/Z equilibration in peripheral heavy-ion collisions below the Fermi energy

Author

Souliotis, G.A. Fountas, P.N. Veselsky, M. Galanopoulos, S. Kohley, Z. McIntosh, A. Yennello, S.J. Bonasera, A.

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

The isoscaling of heavy projectile residues from peripheral heavy-ion reactions at 15-25 MeV/nucleon is employed to obtain information on the process of N/Z equilibration. Recent mass spectrometric data of projectile residues from the reactions of Kr86 (15 MeV/nucleon) with Ni64,58 and Sn124,112 were first analyzed. The isotopically resolved yield distributions of the fragments in the range Z=26-39 were employed for the isoscaling analysis. The yield ratios R21(N,Z) of the fragments from each pair of systems exhibit isoscaling (i.e., an exponential dependence on the fragment neutron number N for each atomic number Z) with the isoscaling parameter α increasing with decreasing (or increasing) Z away from the projectile. This variation is related to the evolution toward N/Z equilibration with increasing energy dissipation estimated from the residue velocities. In parallel to the new heavy-residue isoscaling data of Kr86 at 15 MeV/nucleon, our previous data at 25 MeV/nucleon for the reactions Kr86+Sn124,112 and Ni64+Ni64,58, Ni64+Sn124,112, as well as our data at 15 MeV/nucleon of the lighter system Ar40+Ni64,58, were analyzed in a similar way. Calculations with the stochastic nucleon-exchange model DIT (deep inelastic transfer) and the microscopic many-body model CoMD (constrained molecular dynamics) provided an overall fair description of data and valuable guidance for their interpretation. Interestingly, the data of the Kr86+Ni,Sn reactions at 15 MeV/nucleon show a retardation of the process of N/Z equilibration which, as suggested by the CoMD calculations, is indicative of the collective character of the process. This retardation is not present in the investigated systems at 25 MeV/nucleon (and the light Ar40+Ni systems at 15 MeV/nucleon), whose behavior is found to be consistent with stochastic nucleon exchange. © 2014 American Physical Society.

Published
2014

49. Quantum suppression of fluctuations and temperatures of reconstructed A ∼ 30 quasi-projectiles

Author

Stein, B.C. Bonasera, A. Souliotis, G.A. Zheng, H. Cammarata, P.J. Echeverria, A.J. Heilborn, L. Keksis, A.L. Kohley, Z. Mabiala, J. Marini, P. May, L.W. McIntosh, A.B. Richers, C. Shetty, D.V. Soisson, S.N. Tripathi, R. Wuenschel, S. Yennello, S.J.

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

Suppression of multiplicity fluctuations has been observed for three light fermions (protons, tritons and 3He) in the multifragmentation of reconstructed hot quasi-projectiles produced in collisions of 32S (45 MeV/nucleon) with 112Sn. This suppression, predicted by recent calculations, is attributed to Pauli blocking and has also been observed in experiments with trapped Fermi gases. Experimental results on nuclear temperature and density employing a quantal approach based on momentum and multiplicity fluctuations are also presented. The extracted temperatures show a noticeable reduction when compared to a similarly derived classical method. This reduction in temperature is in agreement with previous predictions indicating that classically derived methods overpredict nuclear temperature as they do not take into account the Fermi motion of the nucleons. The present results underline the role of quantum statistics in nuclear disassembly and suggest the need for proper quantum treatment when dealing with the thermodynamic properties of fragmenting heavy ions. © 2014 IOP Publishing Ltd.

Published
2014

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