Mass limits for the chiral color symmetry G '-boson from LHC dijet data

作者：Frolov I V; Smirnov A D^*

来源：Modern Physics Letters A, 2016, 31(24): 1650140.

DOI：10.1142/S0217732316501406

• New physics
• chiral color symmetry
• axigluon
• massive color octet
• G '-boson
• dijet cross-section

The contributions of G'-boson predicted by the chiral color symmetry of quarks to the differential dijet cross-sections in pp-collisions at the large hadron collider (LHC) are calculated and analyzed in dependence on two free parameters of the model, the G' mass m(G') and mixing angle theta(G). The exclusion and consistency m(G') - theta(G) regions imposed by the ATLAS and CMS data on dijet cross-sections are found. Using the CT10 (MSTW2008) parton distribution PDF) set we show that the G'-boson for theta(G) = 45 degrees., i.e. the axigluon, with the masses m(G') < 2.3 (2.6) TeV and m(G') < 3.35 (3.25) TeV is excluded at the probability level of 95% by the ATLAS and CMS dijet data, respectively. For the other values of.G the exclusion limits are more stringent. The m(G') - theta(G) regions consistent with these data at CL = 68% and CL = 90% are also found.

• 出版日期2016-8-10