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Quantum chromodynamics phase transition in the early Universe and quark nuggets

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Abstract

A first-order quark hadron phase transition in the early Universe may lead to the formation of quark nuggets. The baryon number distribution of these quark nuggets have been calculated and it has been found that there are sizeable number of quark nuggets in the stable sector. The nuggets can clump and form bigger objects in the mass range of 0.0003M⊙ to 0.12M⊙. It has been discussed that these bigger objects can be possible candidates for cold dark matter.

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Authors and Affiliations

  1. Department of Physics, Scottish Church College, 1 & 3 Urquhart Square, 700 006, Kolkata, India

    A. B. Huit Bhattacharyya

  2. Physics Department, St. Xavier’s College, 30, Park Street, 700 016, Kolkata, India

    Shibaji Banerjee

  3. Variable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, 700 064, Kolkata, India

    Sanjay K. Ghosh & Bikash Sinha

  4. Department of Physics, Bose Institute, 93/1, A.P.C. Road, 700 009, Kolkata, India

    Sibaji Raha

  5. Research Center for Nuclear Physics, Osaka University, Mihogaoka 10-1, Ibaraki City, 567-0047, Osaka, Japan

    Sibaji Raha & Hiroshi Toki

  6. Saha Institute of Nuclear Physics, 1/AF, Bidhan Nagar, 700064, Kolkata, India

    Bikash Sinha

Authors
  1. A. B. Huit Bhattacharyya
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  2. Shibaji Banerjee
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  3. Sanjay K. Ghosh
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  4. Sibaji Raha
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  5. Bikash Sinha
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  6. Hiroshi Toki
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Bhattacharyya, A.B.H., Banerjee, S., Ghosh, S.K. et al. Quantum chromodynamics phase transition in the early Universe and quark nuggets. Pramana - J Phys 60, 909–919 (2003). https://doi.org/10.1007/BF02707010

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