Browsing by Author "Cakir O."

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Anomalous HZγ couplings in photon-induced collisions at the LHC
(2014-11-30) Senol A.; Tasci A.T.; Cakir I.T.; Cakir O.
We examined HZγ vertex and obtained the limits on anomalous aγ, bγ and bγ couplings in a model-independent way through the ?p collisions via the process pp → pγp → pHqX. The sensitivities to the anomalous couplings can be obtained as |bγ|, | bγ| 10-3 for the integrated luminosity of Lint = 100 fb-1 at the LHC with √s = 13 TeV.
Search for anomalous WWγ and WWZ couplings with polarized E-beam at the LHeC
(2014-10-01) Cakir I.T.; Cakir O.; Senol A.; Tasci A.T.
We examine the possibility of constraining the anomalous WWγ and WWZ couplings by measuring total cross sections of the ep → νeqγX and ep → νeqZX processes at the LHeC collider with the electron beam energy Ee = 60 GeV and Ee = 140 GeV. We consider the cases of unpolarized and polarized electron beams. The difference of the upper and lower bounds on the anomalous couplings, (δ Δκγ,δλγ) and (δ Δκz,δλz) are obtained as (0:990, 0:122) and (0:362, 0:012) without electron beam polarization at the beam energy of Ee = 140 GeV for an integrated luminosity of Lint = 100 fb-1, respectively. With the possibility of e-beam polarization, we obtain more improved results as (0:975, 0:118) and (0:285, 0:009) for (δ Δκγ,δλγ) and (δ Δκz,δλz), respectively. The results are found to be comparable with the current experimental limits obtained from two-parameter fits to the data collected in the lepton and hadron colliders. It is found that the limits on the anomalous couplings (Δκz,δλz) through the process ep → νeqZX at the LHeC can further improve the current experimental limits.
Single production of fourth-family t′ quarks at the CERN large hadron electron collider
(2009-11-09) Cakir O.; Senol A.; Tasci A.T.
We study the electroweak single production of fourth-family t′ quarks via the process ep→t′ν at the Large Hadron electron Collider (LHeC). We calculate the background and signal cross-sections for the mass range 300-800 GeV. It is shown that the LHeC can discover a single t′ quark up to the mass of 750 GeV for the optimized mixing parameters. Copyright © 2009 EPLA.
The Large Hadron–Electron Collider at the HL-LHC
(2021-11-01) Agostini P.; Aksakal H.; Alekhin S.; Allport P.P.; Andari N.; Andre K.D.J.; Angal-Kalinin D.; Antusch S.; Bella L.A.; Apolinario L.; Apsimon R.; Apyan A.; Arduini G.; Ari V.; Armbruster A.; Armesto N.; Auchmann B.; Aulenbacher K.; Azuelos G.; Backovic S.; Bailey I.; Bailey S.; Balli F.; Behera S.; Behnke O.; Ben-Zvi I.; Benedikt M.; Bernauer J.; Bertolucci S.; Biswal S.S.; Blümlein J.; Bogacz A.; Bonvini M.; Boonekamp M.; Bordry F.; Boroun G.R.; Bottura L.; Bousson S.; Bouzas A.O.; Bracco C.; Bracinik J.; Britzger D.; Brodsky S.J.; Bruni C.; Brüning O.; Burkhardt H.; Cakir O.; Calaga R.; Caldwell A.; Calıskan A.; Camarda S.; Catalan-Lasheras N.C.; Cassou K.; Cepila J.; Cetinkaya V.; Chetvertkova V.; Cole B.; Coleppa B.; Cooper-Sarkar A.; Cormier E.; Cornell A.S.; Corsini R.; Cruz-Alaniz E.; Currie J.; Curtin D.; D’Onofrio M.; Dainton J.; Daly E.; Das A.; Das S.P.; Dassa L.; de Blas J.; Rose L.D.; Denizli H.; Deshpande K.S.; Douglas D.; Duarte L.; Dupraz K.; Dutta S.; Efremov A.V.; Eichhorn R.; Eskola K.J.; Ferreiro E.G.; Fischer O.; Flores-Sánchez O.; Forte S.; Gaddi A.; Gao J.; Gehrmann T.; Gehrmann-De Ridder A.; Gerigk F.; Gilbert A.; Giuli F.; Glazov A.; Glover N.; Godbole R.M.; Goddard B.; Gonçalves V.; Gonzalez-Sprinberg G.A.; Goyal A.
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.