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28 papers · 2 filters
Thermalization of mini-jets in a quark-gluon plasma
Edmond Iancu, Bin Wu
We present the complete physical picture for the evolution of a high-energy jet propagating through a weakly-coupled quark-gluon plasma (QGP) by analytical and numerical investigat…
Towards a Theoretical Understanding of the XYZ Mesons from QCD
Eric Braaten
The XYZ mesons are mesons that contain a heavy quark and antiquark but have properties that seem to require additional constituents. Some of them are electrically charged, so they…
Supersoft SUSY Models and the 750 GeV Diphoton Excess, Beyond Effective Operators
Linda M. Carpenter, Russell Colburn, Jessica Goodman
We propose that the sbino, the scalar partner of a Dirac bino can explain the 750 GeV diphoton excess observed by ATLAS and CMS . We analyze a model in which the sbino couples to p…
Dense Axion Stars
Eric Braaten, Abhishek Mohapatra, Hong Zhang
If the dark matter particles are axions, gravity can cause them to coalesce into axion stars, which are stable gravitationally bound systems of axions. In the previously known solu…
Helicity Evolution at Small-x
Yuri V. Kovchegov, Daniel Pitonyak, Matthew D. Sievert
We construct small-x evolution equations which can be used to calculate quark and anti-quark helicity TMDs and PDFs, along with the structure function. These evolution equati…
QCD factorization for high heavy quarkonium production
Yan-Qing Ma, Jian-Wei Qiu, George Sterman +1
In this talk, we present the QCD factorization formula for heavy quarkonium production at large with factorized leading-power and next-to-leading power contributions in the $…