کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9861706 | 1529010 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Glueball Regge trajectories and the pomeron: a lattice study
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We perform lattice calculations of the lightest J=0,2,4,6 glueball masses in the D=3+1SU(3) gauge theory and extrapolate to the continuum limit. Assuming that these masses lie on linear Regge trajectories we find a leading glueball trajectory α(t)=0.93(24)+0.28(2)αRâ²t, where αRâ²â0.9 GeVâ2 is the slope of the usual mesonic Regge trajectory. This glueball trajectory has an intercept and slope similar to that of the pomeron trajectory. We contrast this with the situation in D=2+1 where the leading glueball Regge trajectory is found to have too small an intercept to be important for high-energy cross sections. We interpret the observed states and trajectories in terms of open and closed string models of glueballs. We discuss the large-N limit and perform an SU(8) calculation that hints at new states based on closed strings in higher representations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 605, Issues 3â4, 13 January 2005, Pages 344-354
Journal: Physics Letters B - Volume 605, Issues 3â4, 13 January 2005, Pages 344-354
نویسندگان
Harvey B. Meyer, Michael J. Teper,