scholarly journals Nuclear effects in neutral current quasi-elastic neutrino interactions

2011 ◽  
Vol 702 (5) ◽  
pp. 433-437 ◽  
Author(s):  
Omar Benhar ◽  
Giovanni Veneziano
2020 ◽  
Vol 2020 (10) ◽  
Author(s):  
Tong Li ◽  
Xiao-Dong Ma ◽  
Michael A. Schmidt

Abstract In this work we investigate the implication of low-energy precision measurements on the quark-lepton charged currents in general neutrino interactions with sterile neutrinos in effective field theories. The physics in low-energy measurements is described by the low-energy effective field theory extended with sterile neutrinos (LNEFT) defined below the electroweak scale. We also take into account renormalization group running and match the LNEFT onto the Standard Model (SM) effective field theory with sterile neutrinos (SMNEFT) to constrain new physics (NP) above the electroweak scale. The most sensitive low-energy probes are from leptonic decays of pseudoscalar mesons and hadronic tau lepton decays in terms of precise decay branching fractions, the lepton flavor universality and the Cabibbo-Kobayashi-Maskawa (CKM) unitarity. We also consider other constraints including nuclear beta decay. The constraints on charged current operators are generally stronger than the ones for quark-neutrino neutral current operators. We find that the most stringent bounds on the NP scale of lepton-number-conserving and lepton- number-violating operators in SMNEFT are 74 (110) TeV and 9.8 (13) TeV, respectively, for the operators with down (strange) quark.


1988 ◽  
Vol 03 (03) ◽  
pp. 721-729 ◽  
Author(s):  
P. RAM BABU

We have considered the ‘neutrino counting’ reaction [Formula: see text]. We restrict to V, A Lorentz structure of weak neutral interaction (WNI), allow many Z bosons to mediate WNI and νi to be different from νj. We derive the expression for differential cross section by allowing the polarizations of e+ and e− but summing over the polarizations of final photons. From the study of differential cross section with polarized and unpolarized beams three different coupling constant combinations can be determined. A definite relation between these observables and the observables in [Formula: see text] scatterings is suggested as a test of single-Z-boson hypothesis. Similarly another test relates observables in [Formula: see text] to those of [Formula: see text] scatterings. By assuming universality a test for presence of nondiagonal neutrino neutral currents (NDνNC’s) is also pointed out. The effects of presence of wrong-handed (anti-) neutrinos on our tests are also discussed. As a by-product, we find a way to determine number of neutrino types, in the case i≠j, assuming universality.


1977 ◽  
Vol 39 (8) ◽  
pp. 437-440 ◽  
Author(s):  
F. A. Harris ◽  
J. P. Berge ◽  
D. V. Bogert ◽  
R. J. Cence ◽  
T. C. Coffin ◽  
...  

2005 ◽  
Vol 619 (3-4) ◽  
pp. 255-262 ◽  
Author(s):  
S. Nakayama ◽  
C. Mauger ◽  
M.H. Ahn ◽  
S. Aoki ◽  
Y. Ashie ◽  
...  

2006 ◽  
Vol 21 (supp01) ◽  
pp. 254-258 ◽  
Author(s):  
PREDRAG MIOČINOVIĆ

The proposed Saltdome Shower Array (SalSA) experiment will detect coherent Cherenkov radio signals from high-energy neutrino interactions in a naturally occurring salt dome. By identifying the number and the angular profile of radio emissions in any given event, distinction can be made between charged-current (CC) and neutral-current (NC) neutrino interactions. Additionally, the flavor of the neutrino can be identified in the case of charged-current interactions. Preliminary results for nominal GZK neutrino flux indicate that ~25% of all events can be correctly identified as coming from charged-current interactions of νμ's or ντ's. These charged-current initiated events can further be separated by the flavor of the original neutrino, either νμ's or ντ's.


2021 ◽  
Vol 2021 (12) ◽  
Author(s):  
Kingman Cheung ◽  
C. J. Ouseph ◽  
TseChun Wang

Abstract We study the impact of non-standard neutrino interactions in the context of a new gauge boson Z′ in neutral-current deep-inelastic scattering performed in ForwArd Search ExpeRiment-ν (FASERν) and in monojet production at the Large Hadron Collider (LHC). We simulate the neutral-current deep-inelastic neutrino-nucleon scattering νN → νN at FASERν in the presence of an additional Z′ boson, and estimate the anticipated sensitivities to the gauge coupling in a wide range of Z′ mass. At the LHC, we study the effect of Z′ on monojet production, which can be enhanced in regions with large missing transverse momenta. We then use the recent results from ATLAS with an integrated luminosity of 139 fb−1 to improve the limits on the gauge coupling of Z′. We interpret such limits on Z′ gauge couplings as bounds on effective non-standard neutrino interactions. We show that the FASERν and the LHC results cover the medium and high energy scales, respectively, and complement one another.


2018 ◽  
Vol 97 (3) ◽  
Author(s):  
K. Abe ◽  
J. Amey ◽  
C. Andreopoulos ◽  
M. Antonova ◽  
S. Aoki ◽  
...  

2016 ◽  
Vol 94 (1) ◽  
Author(s):  
X.-G. Lu ◽  
L. Pickering ◽  
S. Dolan ◽  
G. Barr ◽  
D. Coplowe ◽  
...  

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