4 research outputs found

    New IceCube data and color octet neutrino interpretation of the PeV energy events

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    IceCube collaboration has published two papers on ultrahigh energy neutrinos observation, recently. They have used the data collected in two years in their first publication, which reveals observation of 2 PeV energy neutrino events. The second publication of the collaboration including more data has also confirmed main features of the former paper. In literature, various interpretations of the IceCube data have been proposed. In this study, it is shown that PeV energy neutrino events observed by the IceCube collaboration can be interpreted as resonance production of color octet neutrinos with masses in 500-800 GeV range. © 2015 World Scientific Publishing Company.114F337This work is supported by TUBITAK under the Grant No. 114F337. Authors are grateful to G. Unel for useful discussions

    The Large Hadron–Electron Collider at the HL-LHC

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    The Large Hadron–Electron Collider (LHeC) is designed to move the field of deep inelastic scattering (DIS) to the energy and intensity frontier of particle physics. Exploiting energy-recovery technology, it collides a novel, intense electron beam with a proton or ion beam from the High-Luminosity Large Hadron Collider (HL-LHC). The accelerator and interaction region are designed for concurrent electron–proton and proton–proton operations. This report represents an update to the LHeC's conceptual design report (CDR), published in 2012. It comprises new results on the parton structure of the proton and heavier nuclei, QCD dynamics, and electroweak and top-quark physics. It is shown how the LHeC will open a new chapter of nuclear particle physics by extending the accessible kinematic range of lepton–nucleus scattering by several orders of magnitude. Due to its enhanced luminosity and large energy and the cleanliness of the final hadronic states, the LHeC has a strong Higgs physics programme and its own discovery potential for new physics. Building on the 2012 CDR, this report contains a detailed updated design for the energy-recovery electron linac (ERL), including a new lattice, magnet and superconducting radio-frequency technology, and further components. Challenges of energy recovery are described, and the lower-energy, high-current, three-turn ERL facility, PERLE at Orsay, is presented, which uses the LHeC characteristics serving as a development facility for the design and operation of the LHeC. An updated detector design is presented corresponding to the acceptance, resolution, and calibration goals that arise from the Higgs and parton-density-function physics programmes. This paper also presents novel results for the Future Circular Collider in electron–hadron (FCC-eh) mode, which utilises the same ERL technology to further extend the reach of DIS to even higher centre-of-mass energies

    Search for new physics in events with same-sign dileptons and jets in pp collisions at root s = 8 TeV (vol 01, pg 163, 2014)

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    Made available in DSpace on 2015-06-25T12:55:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2015Made available in DSpace on 2015-11-26T15:18:27Z (GMT). No. of bitstreams: 2 2-s2.0-84921407514.pdf: 236271 bytes, checksum: e9b67a8637560201105108af720ed1ff (MD5) 2-s2.0-84921407514.pdf.txt: 43801 bytes, checksum: a87aa49408e3fa7bb288c13764b65c79 (MD5) Previous issue date: 20152015111

    Search for new physics in events with same-sign dileptons and jets in pp collisions at root s=8 TeV

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    2014
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