Differentiating Dilatons from Axions by their mixing with photons. (arXiv:2107.11594v2 [hep-ph] UPDATED)

Differentiating Dilatons from Axions by their mixing with photons. (arXiv:2107.11594v2 [hep-ph] UPDATED)
<a href="http://arxiv.org/find/hep-ph/1/au:+Chaubey_A/0/1/0/all/0/1">Ankur Chaubey</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Jaiswal_M/0/1/0/all/0/1">Manoj K. Jaiswal</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Singh_D/0/1/0/all/0/1">Damini Singh</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Singh_V/0/1/0/all/0/1">Venktesh Singh</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Ganguly_A/0/1/0/all/0/1">Avijit K. Ganguly</a>

According to the model ($Lambda$CDM), based on deep cosmological
observations, the current universe is constituted of 5$%$ baryonic matter and
25 $%$ non-baryonic cold dark matter (of speculative origin). These include
quanta of scalar filed like dilaton($phi$) of scale symmetry origin and quanta
of pseudoscalar field of extra standard model symmetry ( Peccei-Quinn) origin,
like axion ($phi’$). These fields couple to di-photons through dim-5
operators. In magnetized medium, they in principle can interact with the three
degrees of freedom (two transverse ($A_{parallel,perp}$) and one longitudinal
($A_{L}$)) of photon($gamma$) as long as the total spin is conserved. Because
of intrinsic spin being zero, both $phi$ and $phi’$ could in principle have
interacted with $A_{L}$, (having $s_{z}=0$). However, out of $phi$ and $phi’$
only one interacts with $A_{L}$. Furthermore, the ambient external magnetic
field and media, breaks the intrinsic Lorentz symmetry of the system invoking
Charge conjugation, Parity and Time reversal symmetries, we analyse the mixing
dynamics of $phigamma$ and $phi’gamma$ systems and the structural {it
difference} of their mixing pattern. The strength of electromagnetic (EM)
signals due to $phigamma$ and $phi’gamma$ mixing as a result would be {it
different}. We conclude by commenting on the possibility of detecting this {it
difference} — in polarimetric observables the EMS — using the existing
space-borne detectors.

According to the model ($Lambda$CDM), based on deep cosmological
observations, the current universe is constituted of 5$%$ baryonic matter and
25 $%$ non-baryonic cold dark matter (of speculative origin). These include
quanta of scalar filed like dilaton($phi$) of scale symmetry origin and quanta
of pseudoscalar field of extra standard model symmetry ( Peccei-Quinn) origin,
like axion ($phi’$). These fields couple to di-photons through dim-5
operators. In magnetized medium, they in principle can interact with the three
degrees of freedom (two transverse ($A_{parallel,perp}$) and one longitudinal
($A_{L}$)) of photon($gamma$) as long as the total spin is conserved. Because
of intrinsic spin being zero, both $phi$ and $phi’$ could in principle have
interacted with $A_{L}$, (having $s_{z}=0$). However, out of $phi$ and $phi’$
only one interacts with $A_{L}$. Furthermore, the ambient external magnetic
field and media, breaks the intrinsic Lorentz symmetry of the system invoking
Charge conjugation, Parity and Time reversal symmetries, we analyse the mixing
dynamics of $phigamma$ and $phi’gamma$ systems and the structural {it
difference} of their mixing pattern. The strength of electromagnetic (EM)
signals due to $phigamma$ and $phi’gamma$ mixing as a result would be {it
different}. We conclude by commenting on the possibility of detecting this {it
difference} — in polarimetric observables the EMS — using the existing
space-borne detectors.

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