Possible electromagnetic properties of the neutrino and variations of the solar neutrino flux

Voloshin, M. B.; Высоцкий, Михаил Иосифович; Okun, L.B.

doi:10.1070/pu1986v029n11abeh003654

Cited by 146 publications

(240 citation statements)

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“…The width of the observed signal is consistent with experimental resolution and its significance is 3.1 . The resulting hypefine splitting with respect to the center of gravity of the b (1P ) states is (2 ± 4 ± 2) MeV, consistent with zero and with model predictions [16,17]. The mass values for the h b (1P ) measured by BaBar and Belle are in good agreement with each other.…”

Section: -P3 Epj Web Of Conferencessupporting

confidence: 74%

Heavy quark meson spectroscopy: Experimental results and perspectives

Bettoni

2014

EPJ Web of Conferences

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Section: -P3 Epj Web Of Conferencessupporting

confidence: 74%

Heavy quark meson spectroscopy: Experimental results and perspectives

Bettoni

2014

EPJ Web of Conferences

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“…where the coefficient is given in the MS scheme, in terms of α s for five active flavors, by [53,54,55,56,57,58] …”

Section: Corrections To Field Strength Operatorsmentioning

confidence: 99%

Higgs-Higgs bound state due to new physics at a TeV

2007

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We examine the effects of new physics on the Higgs sector of the standard model, focusing on the effects on the Higgs self couplings. We demonstrate that a low mass higgs, m h < 2 m t , can have a strong effective self coupling due to the effects of a new interaction at a TeV. We investigate the possibility that the first evidence of such an interaction could be a higgs-higgs bound state.To this end, we construct an effective field theory formalism to examine the physics of such a low mass higgs boson. We explore the possibility of a non relativistic bound state of the higgs field (Higgsium) at LHC and construct a non relativistic effective field theory of the higgs sector that is appropriate for such studies (NRHET).

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“…Actually, the Particle Data Book also provides a world averaged value Γ(ψ ′ ) = 277 ± 22 keV in Meson Particle Listing [12]. If we take this world averaged value as input instead of the PDG best fit value in (10), all the numbers in TABLE II will be smaller by a factor of 0.82. This is another uncertainty caused by the input datum of Γ(ψ ′ ).…”

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confidence: 99%

Hadronic transitionχc1→ηcππat the Beijing Spectrometer BES and the Cornell CLEO-c

Kuang

2007

Phys. Rev. D

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Hadronic transitions of the χcj states have not been studied yet. We calculate the rate of the hadronic transition χc1 → ηcππ in the framework of QCD multipole expansion. We show that this process can be studied experimentally at the upgraded Beijing Spectrometer BES III and the Cornell CLEO-c. PACS number(s): 13.20. Gd, 13.30.Eg, 14.40.Cs It has been shown that the theory of hadronic transitions based on QCD multipole expansion [1,2,3,4] can make quite successful predictions for many hadronic transition rates in the cc and bb systems [5,6]. So far, hadronic transitions of the χ cj states have not been studied yet. The observed χ cj decays are mainly hadronic decays (decaying into light hadrons), and the hadronic widths of the three χ cj states are rather different. From the point of view of perturbative QCD, the hadronic decay rates of χ c0 and χ c2 are proportional to α 2 s , while that of χ c1 is proportional to α 3 s [7]. Hence χ c1 has the smallest hadronic decay rate, and is thus the most interesting one among the three χ cj states for studying hadronic transitions. The main hadronic transition process of χ c1 is χ c1 → η c ππ. In the framework of QCD multipole expansion, this is dominated by the E1-M1 transition, and the rate is significantly smaller than those of E1-E1 transitions such as ψ ′ → J/ψ ππ. In addition, χ c1 cannot be directly produced in e + e − collision. It can only be produced via the radiative transition ψ ′ → γχ c1 . This is why χ c1 → η c ππ is not easy to detect at the original Beijing Spectrometer BES II. The designed luminosity of the upgraded Beijing Electron-Positron Collider BEPC II is about 1 − 2 orders of magnitude higher than that of the original BEPC I, and the ability of the upgraded Beijing Spectrometer BES III will be significantly improved compared with the original BES II, especially its photon detector. So that BES III will be able to detect processes like χ c1 → η c ππ which BES II can hardly do. In this paper, we calculate the transition rate of χ c1 → η c ππ in the framework of QCD multipole expansion, and our result shows that both the upgraded BES III and the Cornell * Mailing address CLEO-c have a good chance to study χ c1 → η c ππ. and the theoretical approaches to hadronic transitions can be further tested.According to the formula for E1-M1 transitions [2], the transition amplitude for χ c1 → η c ππ iswhere E a and B a are color electric and magnetic fields; g E and g M are the corresponding coupling constants for E1 and M1 gluon emissions; x is the relative separation between c andc in the quarkonium; s c (sc) is the spin of the c (c) quark; E I is the energy of the initial state χ c1 ; E KL and |KL are the energy and eigenstate of the intermediate state with the principal quantum number K and orbital angular momentum L, respectively. As described in Ref.[2], we take the quark confining string model [8] to describe the intermediate states.The hadronization factor ππ|E a i B a j |0 is a second rank pseudo tensor at the light hadron scale. In the rest frame of...

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Possible electromagnetic properties of the neutrino and variations of the solar neutrino flux

Cited by 146 publications

References 0 publications

Heavy quark meson spectroscopy: Experimental results and perspectives

Heavy quark meson spectroscopy: Experimental results and perspectives

Higgs-Higgs bound state due to new physics at a TeV

Hadronic transitionχc1→ηcππat the Beijing Spectrometer BES and the Cornell CLEO-c

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