Determination of spin and other quantum characteristics of neutral boson with mass around 126 GeV discovered in CMS and ATLAS experiments and its identification

Abstract

We investigate the single neutral bosons (NB) with the spins 0, 1 and 2 decaying via the W^-W^+ -channel in an external magnetic field (EMF) and discuss the questions connected with the search of the Standard Model (SM) scalar Higgs boson (HB) in the CMS and ATLAS experiments at the LHC.It is shown that a single neutral scalar boson with the mass around 126 GeV can not decay into the two on-shell W^+- -bosons in an EMF.The impossibility of decay of a single neutral scalar boson in the mass range below 160.770 GeV into the two on-shell W^+- -bosons in an EMF due to the energy and spin projection conservation laws and the possible decay of a single NB with the spin J=2 and the spin projection J_z=+2 in that region enable us to come to the conclusion that the single NB with the mass 125.3 GeV/126 GeV discovered in the CMS and ATLAS experiments is neither the SM HB nor a scalar boson at all.The NB with the mass 125.3 GeV/126 GeV discovered in the CMS and ATLAS experiments is a new NB with the spin J=2 and the spin projection J_z=+2 that is not included in the SM. Both the P-parity and charge conjugation C of this new particle are +1. So, the newly discovered NB is a neutral tensor boson that is characterized by J^PC=2^++ quantum numbers under parity P and charge conjugation C and CP=+1. The other quantum characteristics of this NB are as follows: the orbital quantum number L=0, the weak isospin T=2, the third component of the weak isospin T_z=0 and the weak hypercharge Y_w=0.The quantum state of the discovered NB is characterized by the 1(^5S-2) spectral term. At the same time the observed NB with the mass around 126 GeV can be considered as a fundamental particle that is a carrier (quantum) of the interactions between bosons, at least between electroweak bosons. To clarify this situation more and new experimental data are required.