کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8195222 | 1528911 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Total cross section and rapidity gap survival probability at the LHC through an eikonal with soft gluon resummation
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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
New results are presented for total pp/p¯p cross sections, in the framework of our QCD based model (GGPS). This is an improved eikonal mini-jet model, where soft gluon radiation tames the fast energy rise normally present in mini-jet models. We discuss the variability in our predictions and provide a handy parametrization of our results for the LHC. We find that our model predictions span the range ÏtotLHC=100â13+10 mb. While this matches nicely with the range of most other models, it does not agree with recent ones which include a “hard” pomeron, even though our model does include hard scattering. We compute the survival probability for large rapidity gap (LRG) events at the LHC and at the Tevatron. These events are relevant, for example, for Higgs signal in the WW fusion process. We also explore whether measurements of the total cross sections at the LHC can help us sharpen the model parameters and hence estimates for these survival probabilities, further.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 659, Issues 1â2, 17 January 2008, Pages 137-143
Journal: Physics Letters B - Volume 659, Issues 1â2, 17 January 2008, Pages 137-143
نویسندگان
Andrea Achilli, Rohini M. Godbole, Agnes Grau, Rohit Hegde, Giulia Pancheri, Yogendra Srivastava,