Deviations from the Harrison-Zel'dovich spectrum due to the Quark-Gluon to Hadron Transition

Schmid C, Schwarz D, Widerin P (1996)
HELVETICA PHYSICA ACTA 69(3): 198-201.

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We investigate the effect of the quark-gluon to hadron transition on the evolution of cosmological perturbations. If the phase transitions is first order, the sound speed vanishes during the transition, and density perturbations fall freely. The primordial Harrison-Zel'dovich density fluctuations for scales below the Hubble radius at the transition develop peaks, which grow linearly with the wavenumber, both for the hadron-photon-lepton fluid and for cold dark matter. The large peaks in the spectrum produce cold dark matter clumps of 10(-8) to 10(-11) M..
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Schmid C, Schwarz D, Widerin P. Deviations from the Harrison-Zel'dovich spectrum due to the Quark-Gluon to Hadron Transition. HELVETICA PHYSICA ACTA. 1996;69(3):198-201.
Schmid, C., Schwarz, D., & Widerin, P. (1996). Deviations from the Harrison-Zel'dovich spectrum due to the Quark-Gluon to Hadron Transition. HELVETICA PHYSICA ACTA, 69(3), 198-201.
Schmid, C., Schwarz, D., and Widerin, P. (1996). Deviations from the Harrison-Zel'dovich spectrum due to the Quark-Gluon to Hadron Transition. HELVETICA PHYSICA ACTA 69, 198-201.
Schmid, C., Schwarz, D., & Widerin, P., 1996. Deviations from the Harrison-Zel'dovich spectrum due to the Quark-Gluon to Hadron Transition. HELVETICA PHYSICA ACTA, 69(3), p 198-201.
C. Schmid, D. Schwarz, and P. Widerin, “Deviations from the Harrison-Zel'dovich spectrum due to the Quark-Gluon to Hadron Transition”, HELVETICA PHYSICA ACTA, vol. 69, 1996, pp. 198-201.
Schmid, C., Schwarz, D., Widerin, P.: Deviations from the Harrison-Zel'dovich spectrum due to the Quark-Gluon to Hadron Transition. HELVETICA PHYSICA ACTA. 69, 198-201 (1996).
Schmid, C, Schwarz, Dominik, and Widerin, P. “Deviations from the Harrison-Zel'dovich spectrum due to the Quark-Gluon to Hadron Transition”. HELVETICA PHYSICA ACTA 69.3 (1996): 198-201.
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