| Autor: |
Naohiro Inabe, Y. Leifels, J. Estee, P. Morfouace, mrow, Piotr Pawłowski, W. G. Lynch, Kazuo Ieki, H. Scheit, Thomas Aumann, Nobuyuki Chiga, D. M. Rossi, Yasuhiro Togano, C.Y. Tsang, J. Łukasik, Byung-Sik Hong, H.S. Lee, Hiroyoshi Sakurai, G. Jhang, A. Snoch, K. Pelczar, Jongmin Lee, T. Isobe, mi> π, H. Toernqvist, C. Santamaria, Hidetada Baba, L. Atar, G. Cerizza, Takashi Nakamura, N. Fukuda, Y. M. Zhang, R. Wang, K. Boretzky, S. Nishimura, M. Kurata-Nishimura, mi> Rit, A. Horvat, M. B. Tsang, H. Sato, Noritsugu Nakatsuka, Alan McIntosh, Anna Sochocka, Toshiyuki Sumikama, J. J. Manfredi, Igor Gašparić, D. Suzuki, Yosuke Kondo, Y. Shimizu, Zhigang Xiao, Sherry Yennello, T. Kobayashi, S. Tangwancharoen, Hideaki Otsu, J. Barney, Rebecca Shane, T. Murakami, Hiroyuki Takeda, Herbert A. Simon, M.D. Cozma, J. Brzychczyk, M. Kaneko, D.S. Ahn, Y.J. Kim, H. Suzuki, P. Lasko |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Popis: |
Many neutron star (NS) properties, such as the proton fraction within a NS, reflect the symmetry energy contributions to the Equation of State that dominate when neutron and proton densities differ strongly. To constrain these contributions at supra-saturation densities, we measure the spectra of charged pions produced by colliding rare isotope tin (Sn) beams with isotopically enriched Sn targets. Using ratios of the charged pion spectra measured at high transverse momenta, we deduce the slope of the symmetry energy to be $42 < L < 117$ MeV. This value is slightly lower but consistent with the $L$ values deduced from a recent measurement of the neutron skin thickness of $^{208}$Pb. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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