Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Haber Alexander"'
Isospin-equilibrating weak processes, called ``Urca" processes, are of fundamental importance in astrophysical environments like (proto-)neutron stars, neutron star mergers, and supernovae. In these environments, matter can reach high temperatures of
Externí odkaz:
http://arxiv.org/abs/2409.09423
Flavor-changing charged current ("Urca") processes are of central importance in the astrophysics of neutron stars. Standard calculations approximate the Urca rate as the sum of two contributions, direct Urca and modified Urca. Attempts to make modifi
Externí odkaz:
http://arxiv.org/abs/2406.13717
Autor:
Mroczek, Debora, Yao, Nanxi, Zine, Katherine, Noronha-Hostler, Jacquelyn, Dexheimer, Veronica, Haber, Alexander, Most, Elias R.
In this work we provide a new, well-controlled expansion of the equation of state of dense matter from zero to finite temperatures ($T$), while covering a wide range of charge fractions ($Y_Q$), from pure neutron to isospin symmetric nuclear matter.
Externí odkaz:
http://arxiv.org/abs/2404.01658
Publikováno v:
Phys.Rev.C 109 (2024) 5, 055803
We analyze the isospin equilibration properties of neutrinoless nuclear ($npe$) matter in the temperature and density range that is relevant to neutron star mergers. Our analysis incorporates neutrino-transparency corrections to the isospin (``beta''
Externí odkaz:
http://arxiv.org/abs/2306.06180
Publikováno v:
Phys. Scr. 98 125302 (2023)
We construct four equation of state (EoS) tables, tabulated over a range of temperatures, densities, and charge fractions, relevant for neutron star applications such as simulations of neutron star mergers. The EoS are computed from a relativistic me
Externí odkaz:
http://arxiv.org/abs/2304.07836
Autor:
Kumar, Rajesh, Dexheimer, Veronica, Jahan, Johannes, Noronha, Jorge, Noronha-Hostler, Jacquelyn, Ratti, Claudia, Yunes, Nico, Acuna, Angel Rodrigo Nava, Alford, Mark, Anik, Mahmudul Hasan, Chatterjee, Debarati, Chatziioannou, Katerina, Chen, Hsin-Yu, Clevinger, Alexander, Conde, Carlos, Cruz-Camacho, Nikolas, Dore, Travis, Drischler, Christian, Elfner, Hannah, Essick, Reed, Friedenberg, David, Ghosh, Suprovo, Grefa, Joaquin, Haas, Roland, Haber, Alexander, Hammelmann, Jan, Harris, Steven, Haster, Carl-Johan, Hatsuda, Tetsuo, Hippert, Mauricio, Hirayama, Renan, Holt, Jeremy W., Kahangirwe, Micheal, Karthein, Jamie, Kojo, Toru, Landry, Philippe, Lin, Zidu, Luzum, Matthew, Manning, T. Andrew, Martin, Jordi Salinas San, Miller, Cole, Most, Elias Roland, Mroczek, Debora, Muronga, Azwinndini, Patino, Nicolas, Peterson, Jeffrey, Plumberg, Christopher, Price, Damien, Providencia, Constanca, Rougemont, Romulo, Roy, Satyajit, Shah, Hitansh, Shapiro, Stuart, Steiner, Andrew W., Strickland, Michael, Tan, Hung, Togashi, Hajime, Vazquez, Israel Portillo, Wen, Pengsheng, Zhang, Ziyuan
Publikováno v:
Living Reviews in Relativity (2024) 27:3
This review aims at providing an extensive discussion of modern constraints relevant for dense and hot strongly interacting matter. It includes theoretical first-principle results from lattice and perturbative QCD, as well as chiral effective field t
Externí odkaz:
http://arxiv.org/abs/2303.17021
Autor:
Brodie, Liam, Haber, Alexander
Publikováno v:
Phys. Rev. C 108, 025806 (2023)
We sample over $500$ relativistic mean-field theories constrained by chiral effective field theory and properties of isospin-symmetric nuclear matter and test them against known stellar structure constraints. This includes a recent mass and radius me
Externí odkaz:
http://arxiv.org/abs/2302.02989
Autor:
Lovato, Alessandro, Dore, Travis, Pisarski, Robert D., Schenke, Bjoern, Chatziioannou, Katerina, Read, Jocelyn S., Landry, Philippe, Danielewicz, Pawel, Lee, Dean, Pratt, Scott, Rennecke, Fabian, Elfner, Hannah, Dexheimer, Veronica, Kumar, Rajesh, Strickland, Michael, Jahan, Johannes, Ratti, Claudia, Vovchenko, Volodymyr, Stephanov, Mikhail, Almaalol, Dekrayat, Baym, Gordon, Hippert, Mauricio, Noronha-Hostler, Jacquelyn, Noronha, Jorge, Speranza, Enrico, Yunes, Nicolas, Horowitz, Chuck J., Harris, Steven P., McLerran, Larry, Reddy, Sanjay, Sorensen, Agnieszka, Sen, Srimoyee, Gandolfi, Stefano, Tews, Ingo, Miller, M. Coleman, Chirenti, Cecilia, Davoudi, Zohreh, Karthein, Jamie M., Rajagopal, Krishna, Vitale, Salvatore, Kapusta, Joseph, Basar, Gokce, Schaefer, Thomas, Skokov, Vladimir, Heinz, Ulrich, Drischler, Christian, Phillips, Daniel R., Prakash, Madappa, Fodor, Zoltan, Radice, David, Plumberg, Christopher, Most, Elias R., Raithel, Carolyn A., Fraga, Eduardo S., Kurkela, Aleksi, Lattimer, James M., Steiner, Andrew W., Holt, Jeremy W., Li, Bao-An, Shen, Chun, Alford, Mark, Haber, Alexander, Pastore, Saori, Piarulli, Maria
Since the release of the 2015 Long Range Plan in Nuclear Physics, major events have occurred that reshaped our understanding of quantum chromodynamics (QCD) and nuclear matter at large densities, in and out of equilibrium. The US nuclear community ha
Externí odkaz:
http://arxiv.org/abs/2211.02224
Autor:
Most, Elias R., Haber, Alexander, Harris, Steven P., Zhang, Ziyuan, Alford, Mark G., Noronha, Jorge
Publikováno v:
ApJL 967 L14 (2024)
In nuclear matter in isolated neutron stars, the flavor content (e.g., proton fraction) is subject to weak interactions, establishing flavor ($\beta$-)equilibrium. However, there can be deviations from this equilibrium during the merger of two neutro
Externí odkaz:
http://arxiv.org/abs/2207.00442
Publikováno v:
Phys.Rev.C 106 (2022) 5, 055804
We describe and implement a procedure for determining the couplings of a Relativistic Mean-Field Theory (RMFT) that is optimized for application to neutron star phenomenology. In the standard RMFT approach, the couplings are constrained by comparing
Externí odkaz:
http://arxiv.org/abs/2205.10283