Testing B-violating signatures from exotic instantons in future colliders  

作　　者：Andrea Addazi Xian-Wei Kang Maxim Yu. Khlopov 

机构地区：[1]Dipartimento di Fisica, Universith di L'Aquila, 67010 Coppito AQ and LNGS, Laboratori Nazionali del Gran Sasso, 67010 Assergi AQ [2]Institute of Physics, Academia Sinica, Taipei 115 [3]Institute for Advanced Simulation, Jiilich Center for Hadron Physics, and Institut fiir Kernphysik, Forschungszentrum Jiilich, D-52425 Jiilich [4]Centre for Cosmoparticle Physics Cosmion [5] National Research Nuclear University MEPHI (Moscow Engineering Physics Institute), Kashirskoe Sh., 31, Moscow 115409 [5]APC laboratory 10, rue Alice Domon et Leonie Duquet, 75205 Paris Cedex 13

出　　处：《Chinese Physics C》2017年第9期19-26,共8页中国物理C（英文版）

基　　金：supported in part by the MIUR research grant “Theoretical Astroparticle Physics” PRIN 2012CPPYP7;partly supported by the DFG and the NSFC through funds provided to the Sino-German CRC 110 “Symmetries and the Emergence of Structure in QCD”;MOST,Taiwan,(104-2112-M-001-022)from April 2017;Supported by MEPhI Academic Excellence Project(contract 02.03.21.0005,27.08.2013);supported by the Ministry of Education and Science of Russian Federation,project 3.472.2014/K and grant RFBR 14-22-03048

摘　　要：We discuss possible implications of exotic stringy instantons for baryon-violating signatures in future colliders. In particular, we discuss high-energy quark collisions and A- transitions. In principle, the A-A process can be probed by high-luminosity electron-positron colliders. However, we find that an extremely high luminosity is needed in order to provide a （somewhat） stringent bound compared to the current data on NN→ππ,KK. On the other hand, （exotic） instanton-induced six-quark interactions can be tested in near future high-energy colliders beyond LHC, at energies around 20-100 TeV. The Super proton-proton Collider （SppC） would be capable of such measurement given the proposed energy level of 50-90 TeV. Comparison with other channels is made. In particular, we show the compatibility of our model with neutron-antineutron and NN→ππ, KK bounds.We discuss possible implications of exotic stringy instantons for baryon-violating signatures in future colliders. In particular, we discuss high-energy quark collisions and A- transitions. In principle, the A-A process can be probed by high-luminosity electron-positron colliders. However, we find that an extremely high luminosity is needed in order to provide a （somewhat） stringent bound compared to the current data on NN→ππ,KK. On the other hand, （exotic） instanton-induced six-quark interactions can be tested in near future high-energy colliders beyond LHC, at energies around 20-100 TeV. The Super proton-proton Collider （SppC） would be capable of such measurement given the proposed energy level of 50-90 TeV. Comparison with other channels is made. In particular, we show the compatibility of our model with neutron-antineutron and NN→ππ, KK bounds.

关 键 词：CEPC SppC exotic instanton baryon number violation 

分 类 号：O572.214[理学—粒子物理与原子核物理] O413.1[理学—物理]