Twilight

The first stage of the Proton-Proton chain at a very lower Temperature.
Proton
The first stage of the Proton-Proton chain is fusion of two Protons to produce Deuteron, Positron and a Neutrino. Neutrino’s travel close to the speed of light, so neutrino is Photon-like particle.

Tunneling of the wave functions $\Psi_p$ of the Protons through the repulsive barrier allows for fusion at a lower Temperature.

One of the Protons through Beta Plus Decay into a Neutron, Positron and a neutrino via weak interaction during the brief moment of fusion and then via strong interaction with another Proton making Deuteron the intitial product in the chain.

electron positron annihalation

The positron with immediately annihilates with an electron by two gamma ray photons.

Given the large number of protons into the stars, the possibility of cold fusion even with zero kinetic energy increases. and within a short time can produce very energetic photon- like particles!.

Computer Simulation Measurements:

$P_0^+ + P_0^+\to D^++ e^++E_{\nu_e}$
$E_{\nu_e}=0.3253971216 Mev$
$P_0\to$ Proton rest energy
$D\to$ Deuteron relativistic energy
$e^+\to$ positron relativistic energy
$E_{\nu_e}=\vec p_e c=\vec p_d c$ Conservation of Momentum (neutrino mass)
$e=\sqrt {(e_0^2+ \vec p^2 .c^2)}=0.6058078338 Mev$
$D=\sqrt {(D_0^2 + \vec p_d^2 c^2) }=1875.612668 Mev$
$K_e=94.8089642 kev$ positron kinetic energy
$K_D=28.22632022 ev$ Deuteron kinetic energy
$e^++e_0^-\to E_{\gamma}$ photons
$E_{\gamma}=1.116806703 Mev$
$e_0^-\to$ electron rest energy
$D_0\to$ Deuteron rest energy