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Fireball spectroscopy

The visible mass in the Universe emerged when hadrons — the building blocks of atomic nuclei — formed from a hot fireball made of quarks and gluons. This mechanism has now been investigated in baryon-rich matter at relatively low temperatures.

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Fig. 1: Schematic of the creation of QCD matter in the laboratory.


  1. 1.

    Braun-Munzinger, P. & Stachel, J. Nature 448, 302–309 (2007).

    ADS  Article  Google Scholar 

  2. 2.

    HADES Collaboration Nat. Phys. (2019).

  3. 3.

    Aoki, Y., Fodor, Z., Katz, S. D. & Szabo, K. K. Phys. Lett. B 643, 46–54 (2006).

    ADS  Article  Google Scholar 

  4. 4.

    Bazavov, A. et al. Phys. Rev. D. 90, 094503 (2014).

    ADS  Article  Google Scholar 

  5. 5.

    Specht, H. J. & NA60 Collaboration AIP Conf. Proc. 1322, 1–10 (2010).

  6. 6.

    Rapp, R. & Wambach, J. Eur. Phys. J. A 6, 415–420 (1999).

    ADS  Article  Google Scholar 

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Correspondence to Ralf Rapp.

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Rapp, R. Fireball spectroscopy. Nat. Phys. 15, 990–991 (2019).

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