Ricardo Yanez, Ph.D.

Research Topics

Dynamics of extremely hot nuclear matter
Dynamics and energetics of nuclear fission
Models of multi-nucleon transfer reactions

Education

B.Sc. in Physics, Uppsala University, 1991
Ph.D. in Nuclear Physics/Nuclear Chemistry, Uppsala University, 1996
B.Sc. in Computer Science, Oregon State University, 2022

Current Activities

Business Owner, Computational Physics Consultants, LLC
Scientific Software Developer

Selected Publications

Experimental evidence for dynamical breakup of finite nuclear matter. R. Yanez, T. Bredeweg, E. Cornell, B. Davin, K. Kwiatkowski, V.E. Viola, R.T. de Souza, R. Lemmon, R. Popescu. Phys. Rev. Lett. 82 3585 (1999).

Excitation energy dependence of the total kinetic energy release in ²³⁵U(n,f). R. Yanez, L. Yao, J. King, W. Loveland, F. Tovesson, N. Fotiades. Phys. Rev. C 89, 051604(R) (2014).

Measurement of the survival probabilities for hot fusion reactions. R. Yanez, W. Loveland, L. Yao, J.S. Barrett, S. Zhu, B.B. Back, T.L. Khoo, M. Alcorta, M. Albers. Phys. Rev. Lett. 112, 152702 (2014).

Measurement of the fusion probability, P_CN, for hot fusion reactions. R. Yanez, W. Loveland, J.S. Barrett, L. Yao, B.B. Back, S. Zhu, T.L. Khoo. Phys. Rev. C 88, 014606 (2013).

Predicting the production of neutron-rich heavy nuclei in multinucleon transfer reactions using a semi-classical model including evaporation and fission competition, GRAZING-F. R. Yanez, W. Loveland. Phys. Rev. C 91, 044608 (2015).

Memberships

Tau Beta Pi, Engineering Honor Society, 2021

Publications

Properties of target-like fragments of Xe-Au collisions at intermediate energies. W. Loveland, K. Aleklett, R. Yanez, A. Srivastava, J.O. Liljenzin. Phys. Lett. B 312 53 (1993).

Heavy residue production in Ar-Th collisions at 44, 77 and 95 MeV /nucleon. R. Yanez, W. Loveland, K. Aleklett, A. Srivastava, J.O. Liljenzin. Phys. Rev. C 52 203 (1995).

Systematics of angular momentum transfer in intermediate energy nuclear collisions. R. Yanez, W. Loveland, D.J. Morrissey, K. Aleklett, J.O. Liljenzin, E. Hagebo, D. Jerrestam, L. Westerberg. Phys. Lett. B 376 29 (1996).

Fusion enhancement with neutron-rich radioactive beam. K.E. Zyromski, W. Loveland, G.A. Souliotis, D.J. Morrissey, C.F. Powell, O. Batenkov, K. Aleklett, R. Yanez, I. Forsberg, M. Sanchez-Vega, J.R. Dunn, B.G. Glagola. Phys. Rev. C 55 R562 (1997).

The 4π-fragment-spectrometer FOBOS. H.-G.Ortlepp. W. Wagner, C.-M. Herbach, A.A. Aleksandrov, I.A. Aleksandrova, M. Andrassy, A. Budzanowski, B. Czech, M. Danziger, L. Dietterle, V.N. Doronin, S. Dshemuchadse, A.S. Formichev, W.D. Fromm, M. Gebhardt, P. Gippner, K. Heidel, Sh. Heinitz, H. Homeyer, S.A. Ivanovsky, D.V. Kamanin, I.V. Kolesov, A. Matthies, D. May, S.I. Merzlyakov, W. von Oertzen, Yu.Ts. Oganessian, G. Pausch, Yu.E. Penionzhkevich, Yu.V. Pyatkov, S.V. Radnev, G. Renz, L.A. Rubinskaya, I.D. Sandrev, K.D. Schilling, W. Seidel, D.I. Shishkin, A.P. Sirotin, H. Sodan, O.V. Strekalovsky, V.G. Tishchenko, V.V. Trofimov, I.P. Tsurin, C. Umlauf, D.V. Vakatov, V.M. Vasko, V.A. Vitenko, E. Will, M. Wilpert, R. Yanez, V.E. Zhuchko, P. Ziem, L. Zrodlowski. Nucl. Instr. Meth. Phys. Res. A 403 65 (1998).

Heavy residue production in the interaction of 29 MeV/nucleon ²⁰⁸Pb with ¹⁹⁷Au. W. Loveland, M. Andersson, K.E. Zyromski, N. Ham, B. Altschul, J. Vicakova, D. Menge, J.O. Liljenzin, R. Yanez, K. Aleklett. Phys. Rev. C 59 1472 (1999).

Isospin fractionation in nuclear multifragmentation. H.S. Xu, M.B. Tsang, T.X. Lui, X.D. Lui, W.G. Lynch, W.P. Pan, A. Vander Molen, G. Verde, A. Wagner, H.F. Xi, C.K. Gelbke, L. Beaulieu, B. Davin, Y. Larochelle, T. Lefort, R.T. de Souza, R. Yanez, V.E. Viola, R.J. Charity, L.G. Sobotka. Phys. Rev. Lett. 85 716 (2000).

Fusion enhancement in the ^32,38S + ¹⁸¹Ta reaction. K. E. Zyromski, W. Loveland, G.A. Souliotis, D.J. Morrissey, C.F. Powell, O. Batenkov, K. Aleklett, R. Yanez, I. Forsberg. Phys. Rev. C 63 024615 (2001).

LASSA: a large area silicon strip array for isotopic identification of charged particles. B. Davin, R.T. de Souza, R. Yanez, Y. Larochelle, R. Alfaro, H.S. Xu, A. Alexander, K. Bastin, L. Beaulieu, J. Dorsett, G. Fleener, L. Gelovani, T. Lefort, J. Poehlman, R.J. Charity, L.G. Sobotka, J. Elson, A. Wagner, T.X. Liu, X.D. Liu, W.G. Lynch, L. Morris, R. Shomin, W.P. Tan, M.B. Tsang, G. Verde, J. Yurkon. Nucl. Instr. Meth. Phys. Res. A 473 302 (2001).

Fragment isospin as a probe of heavy-ion collisions. H. Xu, R. Alfaro, B. Davin, L Beaulieu, Y. Larochelle, T. Lefort, R. Yanez, S. Hudan, R.T. de Souza, T.X. Liu, X.D. Liu, W.G. Lynch, R. Shomin, W.P. Tan, M.B. Tsang, A. Vander Molen, A. Wagner, H.F. Xi, C.K. Gelbke, R.J. Charity, L.G. Sobotka, A.S. Botvina. Phys. Rev. C 65 061602(R) (2002).

Fragment production in non-central collisions of intermediate energy heavy ions. B. Davin, R. Alfaro, H. Xu, L. Beaulieu, Y. Larochelle, T. Lefort, R. Yanez, S. Hudan, A.L. Caraley, R.T. de Souza, T.X. Liu, X.D. Liu, W.G. Lynch, R. Shomin, W.P. Tan, M.B. Tsang, A. Vander Molen, A. Wagner, H.F. Xi, C.K. Gelbke, R.J. Charity, L.G. Sobotka. Phys. Rev. C 65 064614 (2002).

Near-scission emission of intermediate mass fragments in ¹²C + ²³²Th at E/A = 16 and 22 MeV. T.A. Bredeweg, R. Yanez, B.P. Davin, K. Kwiatkowski, R.T. de Souza, R. Lemmon, R. Popescu, R.J. Charity, L.G. Sobotka, D. Hofman, N. Carjan. Phys. Rev. C 66 014608 (2002).

Excitation and decay of projectilelike fragments formed in dissipative peripheral collisions at intermediate energies. R. Yanez, S. Hudan, R. Alfaro, B. Davin, Y. Larochelle, H. Xu, L. Beaulieu, T. Lefort, V.E. Viola, R.T. de Souza, T.X. Liu, X.D. Liu, W.G. Lynch, R. Shomin, W.P. Tan, M.B. Tsang, A. Vander Molen, A. Wagner, H.F. Xi, R.J. Charity, L.G. Sobotka. Phys. Rev. C 68 011602(R) (2003).

Isotope yields from central ^112,124Sn + ^112,124Sn collisions: Dynamical emission? T.X. Liu, X.D. Liu, M.J. van Goethem, W.G. Lynch, R. Shomin, W.P. Tan, M.B. Tsang, G. Verde, A. Wagner, H.F. Xi, H.S. Xu, M. Colonna, M. Di Toro, M. Zielinska-Pfabe, H.H. Wolter, L. Beaulieu, B. Davin, Y. Larochelle, T. Lefort, R.T. de Souza, R. Yanez, V.E. Viola, R.J. Charity, L.G. Sobotka. Phys. Rev. C 69 014603 (2004).

Isospin diffusion and the Nuclear Symmetry Energy in heavy ion reactions. M.B. Tsang, T.X. Liu, L. Shi, P. Danielewicz, C.K. Gelbke, X.D. Liu, W.G. Lynch, W.P. Tan, G. Verde, A. Wagner, H.S. Xu, W.A. Friedman, L. Beaulieu, B. Davin, R.T. de Souza, Y. Larochelle, T. Lefort, R. Yanez, V.E. Viola, Jr., R.J. Charity, L.G. Sobotka. Phys. Rev. Lett. 92 062701 (2004).

Spin determination of particle unstable levels with particle correlations. W.P. Tan, W.G. Lynch, T.X. Liu, X.D. Liu, M.B. Tsang, G. Verde, A. Wagner, H.S. Xu, B. Davin, R.T. de Souza, Y. Larochelle, R. Yanez, R.J. Charity, L.G. Sobotka. Phys. Rev. C 69, 061304(R) (2004).

Interplay of initial deformation and Coulomb proximity on nuclear decay. S. Hudan, R. Alfaro, L. Beaulieu, B. Davin, Y. Larochelle, T. Lefort, V.E. Viola, H. Xu, R. Yanez, R.T. de Souza, R.J. Charity, L.G. Sobotka, T.X. Liu, X.D. Liu, W.G. Lynch, R. Shomin, W.P. Tan, M.B. Tsang, A. Vander Molen, A. Wagner, H.F. Xi. Phys. Rev. C 70, 031601(R) (2004).

Fission Mass Widths in ¹⁹F + ²³²Th, ¹⁶O + ^235,238U reactions at Near-Barrier Energies. R. Yanez, D.J. Hinde, B. Bouriquet, D. Duniec. Phys. Rev. C 71, 041602(R) (2005).

Comparison of midvelocity fragment formation with projectilelike decay. S. Hudan, R. Alfaro, B. Davin, Y. Larochelle, H. Xu, L. Beaulieu, T. Lefort, R. Yanez, R.T. de Souza, R.J. Charity, L.G. Sobotka, T.X. Liu, X.D. Liu, W.G. Lynch, R. Shomin, W.P. Tan, M.B. Tsang, A. Vander Molen, A. Wagner, H.F. Xi. Phys. Rev. C 71, 054604 (2005).

Cooling dynamics in multi-fragmentation processes. T.X. Liu, W.G. Lynch, M.J. van Goethem, X.D. Liu, R. Shomin, W.P. Tan, M.B. Tsang, G. Verde, A. Wagner, H.F. Xi, H.S. Xu, W.A. Friedman, S.R. Souza, R. Donangelo, L. Beaulieu, B. Davin, Y. Larochelle, T. Lefort, R.T. de Souza, R. Yanez, V.E. Viola, R.J. Charity, L.G. Sobotka. Europhys. Lett. 74, 806 (2006).

d-a correlation functions and collective motion in Xe + Au collisions at E/A = 50 MeV. G. Verde, P. Danielewicz, W.G. Lynch, C.F. Chan, C.K. Gelbke, L.K. Kwong, T.X. Liu, X.D. Liu, D. Seymour, R. Shomin, W.P. Tan, M.B. Tsang, A. Wagner, H.S. Xu, D.A. Brown, B. Davin, Y. Larochelle, R.T. de Souza, R. Yanez, R.J. Charity, L.G. Sobotka. Phys. Lett. B 653, 12 (2007).

Charge correlations and isotopic distributions of projectile fragmentation events in Xe-124 + Sn-112 at E/A=50 MeV. S. Hudan, A.B. McIntosh, J. Black, D. Mercier, C.J. Metelko, R. Yanez, R.T. de Souza, A. Chbihi, M. Famiano, M.O. Frégeau, J. Gauthier, J. Moisan, R. Roy, S. Bianchin, C. Schwarz, W. Trautmann, A.S. Botvina. Phys. Rev. C 80, 064611 (2009).

Short-lived binary splits of an excited projectile-like fragment induced by transient deformation. A.B. McIntosh, S. Hudan, J. Black, D. Mercier, C.J. Metelko, R. Yanez, R.T. de Souza, A. Chbihi, M. Famiano, M.O. Frégeau, J. Gauthier, J. Moisan, R. Roy, S. Bianchin, C. Schwarz, W. Trautmann. Phys. Rev. C 81, 034603 (2010).

Isospin dependence of capture cross sections: The S-36 + Pb-208 reaction. R. Yanez, W. Loveland, A.M. Vinodkumar, P.H. Sprunger, L. Prisbrey, D. Peterson, S. Zhu, J.J. Kolata, A. Villano, J.F. Liang. Phys. Rev. C 82, 054615 (2010).

Search for inverse fission of uranium. R. Yanez, W. Loveland, J. Beckerman, M. Leonard, C.J. Gross, D. Shapira, J.F. Liang, Z. Kohley, R.L. Varner. Phys. Rev. C 85, 044620 (2012).

Tracking saddle-to-scission dynamics using N/Z in projectile breakup reactions. S. Hudan, A.B. McIntosh, R.T. de Souza, S. Bianchin, J. Black, A. Chbihi, M. Famiano, M.O. Frégeau, J. Gauthier, D. Mercier, J. Moisan, C.J. Metelko, R. Roy, C. Schwarz, W. Trautmann, R. Yanez. Phys. Rev. C 86, 021603(R) (2012).

Interaction of ¹¹Li with ²⁰⁸Pb. A.M. Vinodkumar, W. Loveland, R. Yanez, M. Leonard, L. Yao, P. Bricault, M. Dombsky, P. Kunz, J. Lassen, A.C. Morton, D. Ottewell, D. Preddy, M. Trinczek. Phys. Rev. C 87, 044603 (2013).

Measurement of the fusion probability, P_CN, for hot fusion reactions. R. Yanez, W. Loveland, J.S. Barrett, L. Yao, B.B. Back, S. Zhu, T.L. Khoo. Phys. Rev. C 88, 014606 (2013).

Excitation energy dependence of the total kinetic energy release in ²³⁵U(n,f). R. Yanez, L. Yao, J. King, W. Loveland, F. Tovesson, N. Fotiades. Phys. Rev. C 89, 051604(R) (2014).

¹³⁶Xe+²⁰⁸Pb reaction: A test of models of multinucleon transfer reactions. J.S. Barrett, W. Loveland, R. Yanez, S. Zhu, A.D. Ayangeakaa, M.P. Carpenter, J.P. Greene, R.V.F. Janssens, T. Lauritsen, E.A. McCutchan, A.A. Sonzogni, C.J. Chiara, J.L. Harker, W.B. Walters. Phys. Rev. C 91, 064615 (2015).

γ-ray spectroscopy of ²⁰⁹Tl. B.M.S. Amro, C.J. Lister, E.A. McCutchan, W. Loveland, P. Chowdhury, S. Zhu, A.D. Ayangeakaa, J.S. Barrett, M.P. Carpenter, C.J. Chiara, J.P. Greene, J.L. Harker, R.V.F. Janssens, T. Lauritsen, A.A. Sonzogni, W.B. Walters, R. Yanez. Phys. Rev. C 95, 014330 (2017).

Modeling Multi-Nucleon Transfer in Symmetric Collisions of Massive Nuclei. T. Welsh, W. Loveland, R. Yanez, J.S. Barrett, E.A. McCutchan, A.A. Sonzogni, T. Johnson, S. Zhu, J.P. Greene, A.D. Ayangekaa, M.P. Carpenter, T. Lauritsen, J.L. Harker, W.B. Walters, B.A. Amro, P. Copp. Phys. Lett. B 771, 119 (2017).

Sub-barrier fusion of ¹¹Li with ²⁰⁸Pb. Loveland, W., Vinodkumar, A.M., Yanez, R., Yao, L., King, J., Lassen, J., Rojas, A. Eur. Phys. J. A54, 140 (2018).

Capture cross sections for the synthesis of new heavy nuclei using radioactive beams. A. Wakhle, K. Hammerton, Z. Kohley, D.J. Morrissey, K. Stiefel, J. Yurkon, J. Walshe, K.J. Cook, M. Dasgupta, D.J. Hinde, D.J. Jeung, E. Prasad, D.C. Rafferty, C. Simenel, E.C. Simpson, K. Vo-Phuoc, J. King, W. Loveland, R. Yanez. Phys. Rev. C 97, 021602(R) (2019).

The ¹³⁶Xe+¹⁹⁸Pt reaction: A test of models of multi-nucleon. V.V. Desai, W. Loveland, K. McCaleb, R. Yanez<, G. Lane, S.S. Hota, M.W. Reed, H. Watanabe, S. Zhu, K. Auranen, A.D. Ayangeakaa, M.P. Carpenter, J.P. Greene, F.G. Kondev, D. Seweryniak, R.V.F. Janssens, P.A. Copp. Phys. Rev. C 99, 044604 (2019).