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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/060/05/0909-0919

    • Keywords

       

      Quark nuggets; dark matter; massive astrophysical compact halo objects

    • 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.

    • Author Affiliations

       

      A B Huit Bhattacharyya1 Shibaji Banerjee2 Sanjay K Ghosh3 Sibaji Raha4 5 Bikash Sinha3 6 Hiroshi Toki5

      1. Department of Physics, Scottish Church College, 1 & 3 Urquhart Square, Kolkata - 700 006, India
      2. Physics Department, St. Xavier’s College, 30, Park Street, Kolkata - 700 016, India
      3. Variable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata - 700 064, India
      4. Department of Physics, Bose Institute, 93/1, A.P.C. Road, Kolkata - 700 009, India
      5. Research Center for Nuclear Physics, Osaka University, Mihogaoka 10-1, Ibaraki City, Osaka - 567-0047, Japan
      6. Saha Institute of Nuclear Physics, 1/AF, Bidhan Nagar, Kolkata - 700064, India

    • Dates

       
      Published
      May 2003

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