IDEAS home Printed from https://ideas.repec.org/a/ags/hukrgr/253764.html
   My bibliography  Save this article

Collision Geometry and Flow in Uranium+Uranium Collisions

Author

Listed:
  • Goldschmidt, Andy
  • Qiu, Zhi
  • Shen, Chun
  • Heinz, Ulrich

Abstract

Using event-by-event viscous fluid dynamics to evolve fluctuating initial density profiles from the Monte-Carlo Glauber model for U+U collisions, we report a “knee”-like structure in the elliptic flow as a function of collision centrality, located near 0.5% centrality as measured by the final charged multiplicity. This knee is due to the preferential selection of tip-on-tip collision geometries by a high-multiplicity trigger. Such a knee structure is not seen in the STAR data. This rules out the two-component MC-Glauber model for initial energy and entropy production. An enrichment of tip-tip configurations by triggering solely on high-multiplicity in the U+U collisions thus does not work. On the other hand, using the Zero Degree Calorimeters (ZDCs) coupled with event-shape engineering, we identify the selection purity of body-body and tip-tip events in the full-overlap U+U collisions. With additional constraints on the asymmetry of the ZDC signals one can further increases the probability of selecting tip-tip events in U+U collisions.

Suggested Citation

  • Goldschmidt, Andy & Qiu, Zhi & Shen, Chun & Heinz, Ulrich, 2016. "Collision Geometry and Flow in Uranium+Uranium Collisions," Journal of Central European Green Innovation, Karoly Robert University College, vol. 4(4), pages 1-11.
    • Handle: RePEc:ags:hukrgr:253764
    DOI: 10.22004/ag.econ.253764
    as

    Download full text from publisher

    File URL: https://ageconsearch.umn.edu/record/253764/files/06_goldschmidt_a4_53_63_0.pdf
    Download Restriction: no
    File URL: https://libkey.io/10.22004/ag.econ.253764?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:ags:hukrgr:253764. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: AgEcon Search (email available below). General contact details of provider: https://edirc.repec.org/data/gtkrghu.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.