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On April 18, 2013, theorists gathered to discuss the Color Glass Condensate (CGC) and Qsat, delving into mechanisms such as Sivers effects and Odderon exchange. Key papers, including Collins' work and references to Boer et al., Kovchegov, and Sievert, were highlighted. A detailed analysis of saturation scales including Qsp2 and QsA2, as well as forward region behavior, was conducted. The session emphasized benchmark studies in various nuclei like Si, Cu, and Au, providing insights into the evolving understanding of saturation phenomena in high-energy physics.
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Meeting with theorists that Xiaodong set up April 18, 2013
Getting to the CGC and Qsat Kang, Yuan arXiv: 1106.1375v1 Collins: This is one mechanism. Others: e.g. Sivers: see Boer et al. PRD 74, 074018 Kang-Xiao arXiv 1212.4309 Odderon (3 gluon)exchange: Kovchegov, Sievert arXiv:1201.5890
a good benchmark? Qsp2 = (1.0 GeV)2 QsA2 = A1/3 Qsp2 d = 0.16 GeV C Approximate error in ratioassuming dAN/AN ~ 0.1 Si Cu Au Good for pT ~QS “forward region” pT (GeV) From Kang PRD 84, 0304019 eq 17 See Fuji, Gelis, Venugopalan NPA 780, 146 for A1/3 scaling
A good benchmark? C Si Cu How do these approach 1? Au Qsp2 = (1.0 GeV)2 Qsp2 = (0.2 GeV)2 QsA2 = A1/3 Qsp2 d = 0.16 GeV Differentiate between Saturation scales pT (GeV) See Marquet ArXiv:1101.3466 for QSp2 = 0.2 GeV2
