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Träfflista för sökning "WFRF:(Deepak Kumar S.) srt2:(2017)"

Sökning: WFRF:(Deepak Kumar S.) > (2017)

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  • Singh, B., et al. (författare)
  • Feasibility study for the measurement of pi N transition distribution amplitudes at (P)over-barANDA in (P)over-barp -> J/psi pi(0)
  • 2017
  • Ingår i: Physical Review D. - : AMER PHYSICAL SOC. - 2470-0010 .- 2470-0029. ; 95:3
  • Tidskriftsartikel (refereegranskat)abstract
    • The exclusive charmonium production process in (P) over barp annihilation with an associated pi 0 meson (p) over barp -> J/psi pi(0) is studied in the framework of QCD collinear factorization. The feasibility of measuring this reaction through the J/psi -> e(+) e(-) decay channel with the AntiProton ANnihilation at DArmstadt ((P) over bar ANDA) experiment is investigated. Simulations on signal reconstruction efficiency as well as the background rejection from various sources including the (P) over barp -> pi(+)pi(-)pi(0) and (p) over barp -> J/psi pi(0)pi(0) reactions are performed with PANDAROOT, the simulation and analysis software framework of the (P) over bar ANDA experiment. It is shown that the measurement can be done at (P) over bar ANDA with significant constraining power under the assumption of an integrated luminosity attainable in four to five months of data taking at the maximum design luminosity.
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  • Kumar, Mukesh, et al. (författare)
  • The impact of additional scalar bosons at the LHC
  • 2017
  • Ingår i: HIGH ENERGY PARTICLE PHYSICS WORKSHOP 2016. - : IOP PUBLISHING LTD.
  • Konferensbidrag (refereegranskat)abstract
    • In this study we consider an effective model by introducing two hypothetical real scalars, H and chi - a dark matter candidate, where the masses of these scalars are 2m(h) < m(H) < 2m(t) and m(chi) approximate to m(h)/2 with m(h) and m(t) being the Standard Model Higgs boson and top quark masses, respectively. A distortion in the transverse momentum distributions of h in the intermediate region of the spectrum through the processes pp -> H -> h(chi chi) could be observed in this model. An additional scalar, S, has been postulated to explain large H -> h(chi chi) branching ratios, assuming m(h) less than or similar to m(s) less than or similar to mH - m(h) and m(s) > 2m(chi). Furthermore, a scenario of a two Higgs doublet model (2HDM) is introduced and a detailed proposal at the present energies of the Large Hadron Collider to study the extra CP-even (h, H), CP-odd (A) and charged (H-+/-) scalars has been pursued. With possible phenomenological implications, production and decay modes for these scalars are discussed. Based on the mass spectrum of H, A and H-+/-, the production of multi-leptons and Z+jets+missing-energy events are predicted. A specific, Type-II 2HDM model is discussed in detail.
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