Probing little Higgs model in e(+)e(-) -> nu(nu)over-bar gamma process

Aliev, T.
We study the process e(+)e(-) -> nu(nu) over bar gamma to search for its sensitivity to the extra gauge bosons Z(2), Z(3) and W-2(+/-), which are suggested by the little Higgs models. We find that the ILC with root s= 0.5 TeV and CLIC with root s = 3 TeV cover different regions of the LHM parameters. We show that this channel can provide a determination of the parameters, complementary to measurements of the extra gauge bosons obtainable at the upcoming LHC experiments.


Z -> l(+)l(-) and W ->nu(l)l(+) decays in the noncommutative standard model
Iltan, EO (American Physical Society (APS), 2002-08-01)
We study Z-->l(+)l(-) and W-->nu(l)l(+) decays in the standard model including noncommutative effects. We observe that these effects appear in the flavor-dependent part of the decay widths of the processes under consideration and, therefore, they are more effective for the heavy lepton decays.
The decay tau ->mu(nu)over-bar(i)nu(i) in the Randall-Sundrum background with localized U(1)(Y) gauge boson
Iltan, E. O.; SUNDU PAMUK, HAYRİYE (Springer Science and Business Media LLC, 2008-02-01)
We study the effects of localization of the U(1)(Y) gauge boson around the visible brane and the contributions of the Kaluza-Klein modes of Z bosons on the branching ratio of the lepton flavor violating tau ->mu(nu) over bar (i)nu(i) decay. We observe that the branching ratio is sensitive to the amount of localization of the Z boson in the bulk of the Randall - Sundrum background.
Detecting the long-distance structure of the $$X(3872)$$ X ( 3872 )
Guo, Feng-Kun; Hidalgo-Duque, Carlos; Nieves, Juan; Ozpineci, Altug; Valderrama, Manuel Pavón (Springer Science and Business Media LLC, 2014-5)
We study the X(3872) → D0D¯ 0π0 decay within a DD¯ ∗ molecular picture for the X(3872) state. This decay mode is more sensitive to the long-distance structure of the X(3872) resonance than its J/ψππ and J/ψ3π decays, which are mainly controlled by the details of the X(3872) wave function at short distances. We show that the D0D¯ 0 final state interaction can be important, and that a precise measurement of this partial decay width can provide valuable information on the interaction strength between t...
Design, performance, and calibration of CMS forward calorimeter wedges
Abdullin, S.; et. al. (Springer Science and Business Media LLC, 2008-01-01)
We report on the test beam results and calibration methods using high energy electrons, pions and muons with the CMS forward calorimeter (HF). The HF calorimeter covers a large pseudorapidity region (3 <= vertical bar eta vertical bar <= 5), and is essential for a large number of physics channels with missing transverse energy. It is also expected to play a prominent role in the measurement of forward tagging jets in weak boson fusion channels in Higgs production. The HF calorimeter is based on steel absorb...
H+-> W+iota(-)(i)iota(+)(j) decay in the two Higgs doublet model
Iltan, EO; Sundu, H (American Physical Society (APS), 2003-02-01)
We study the lepton flavor violating (LFV) H+-->W(+)l(i)(-)l(j)(+) and the lepton flavor conserving (LFC) H+-->W(+)l(i)(-)l(i)(+) (l(i)=tau,l(j)=mu) decays in the framework of the general two Higgs doublet model, the so-called model III. We estimate the decay width of LFV (LFC) decay at the order of magnitude of 10(-11)-10(-5) GeV (10(-9)-10(-4) GeV), for 200 GeVless than or equal tom(H+/-)less than or equal to400 GeV, and intermediate values of the coupling (xi) over bar (E)(N,taumu)similar to5 GeV ((xi) o...
Citation Formats
T. Aliev and O. ÇAKIR, “Probing little Higgs model in e(+)e(-) -> nu(nu)over-bar gamma process,” EUROPEAN PHYSICAL JOURNAL C, pp. 149–158, 2008, Accessed: 00, 2020. [Online]. Available: