Testing B-violating signatures from exotic instantons in future colliders

  • We discuss possible implications of exotic stringy instantons for baryon-violating signatures in future colliders. In particular, we discuss high-energy quark collisions and Λ-Λ transitions. In principle, the Λ-Λ 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 m 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 m 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 m NN→ππ,KK bounds.
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Andrea Addazi, Xian-Wei Kang and Maxim Yu. Khlopov. Testing B-violating signatures from exotic instantons in future colliders[J]. Chinese Physics C, 2017, 41(9): 093102. doi: 10.1088/1674-1137/41/9/093102
Andrea Addazi, Xian-Wei Kang and Maxim Yu. Khlopov. Testing B-violating signatures from exotic instantons in future colliders[J]. Chinese Physics C, 2017, 41(9): 093102.  doi: 10.1088/1674-1137/41/9/093102 shu
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Received: 2017-03-14
Revised: 2017-05-10
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    A. A.'s work was supported in part by the MIUR research grant Theoretical Astroparticle Physics PRIN 2012CPPYP7. XWK's work is 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 when he was in Jlich, and by MOST, Taiwan, (104-2112-M-001-022) from April 2017. The work by MK was performed within the framework of the Center FRPP 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

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Testing B-violating signatures from exotic instantons in future colliders

    Corresponding author: Xian-Wei Kang, andrea.addazi@infn.lngs.it
  • 1.  Dipartimento di Fisica, Università
  • 2. Institute of Physics, Academia Sinica, Taipei 115
  • 3. Institute for Advanced Simulation, Jü
  • 4. Centre for Cosmoparticle Physics Cosmion
  • 5. APC laboratory 10, rue Alice Domon et Lé
Fund Project:  A. A.'s work was supported in part by the MIUR research grant Theoretical Astroparticle Physics PRIN 2012CPPYP7. XWK's work is 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 when he was in Jlich, and by MOST, Taiwan, (104-2112-M-001-022) from April 2017. The work by MK was performed within the framework of the Center FRPP 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

Abstract: We discuss possible implications of exotic stringy instantons for baryon-violating signatures in future colliders. In particular, we discuss high-energy quark collisions and Λ-Λ transitions. In principle, the Λ-Λ 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 m 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 m 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 m NN→ππ,KK bounds.

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