کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10722833 | 1033806 | 2012 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Gluodissociation and screening of Ï states in PbPb collisions at sNN=2.76TeV
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Gluodissociation and screening of Ï states in PbPb collisions at sNN=2.76TeV Gluodissociation and screening of Ï states in PbPb collisions at sNN=2.76TeV](/preview/png/10722833.png)
چکیده انگلیسی
We suggest that gluon-induced dissociation and screening of the Ï(nS) states explain the suppression of the Ï(2S+3S) states relative to the Ï(1S) ground state that has been observed by CMS in PbPb collisions at sNN=2.76TeV at the CERN LHC. The minimum-bias gluodissociation cross sections of the 1Sâ3S states are calculated using a screened Cornell potential and a thermal gluon distribution. The 3S state dissolves due to screening before sizeable gluodissociation occurs, but for the 2S and 1S states there is an interplay between screening, gluodissociation, and feed-down from the Ïb(2P) and Ïb(1P) states. Based on a schematic approach, we find that the calculated suppression of the Ï(2S) and Ï(3S) states relative to Ï(1S) is consistent with the CMS result, but allows for additional suppression mechanisms. The Ï(1S) suppression through gluodissociation is, however, in good agreement with the CMS data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 707, Issue 5, 7 February 2012, Pages 534-538
Journal: Physics Letters B - Volume 707, Issue 5, 7 February 2012, Pages 534-538
نویسندگان
Felix Brezinski, Georg Wolschin,