The positive mass is how much matter there is and the negative mass is how much energy disappeared from vacuum to form mass , it is possible to have negative energy , in relativity energy comes out of mass by the square of speed of light increment here I would like to present the equation in opposite direction i.e huge energy produces little mass by the reciprocal of the square of the speed of light factor , by the idea that mass was obtained by making huge work, then the same energy is released by the same equation.

by the argument above when mass was made by work done , something left which is the negative mass quantity, it is the same as when collecting heat energy from a place cold occurs there , because at first energy came from nothing to be as a certain quantity in the whole universe , as thermodynamics first law states that we have a specific a mount of energy in the universe nothing disappears nothing will be created.

the negative mass equals the positive one in magnitude without the negative sign, the gravity field is the amount of negative mass differs in density from the center which it is at its highest density to zero at infinity , the density of negative mass is mass divided by the spherical area:

ρ= mass/(4π*r*r) , k.g/m*m

where( r) is the distance between the center of the spherical mass to the surface to measure density at. when many particles gather they multiply the density by the same amount of the masses together.

the vacuum is zero mass , positive mass is attracted to area of negative mass to fulfill it, for instance masses on earth move from less area density to high area density , from above earth surface to its surface to its center this is the gravitational force which is directly proportional to the density of negative mass:

F=k*ρ*m newtons

where k is a constant.

to obtain k:

g= 9.8 m/s*s , g= k*ρ

ρ= 6*10E24/ (4π*6378000*6378000)= 1.17E10. k.g/m*m

k=g/ρ = 8.34E-10

when I say:

negative mass is how much energy disappeared from vacuum to form mass

I mean energy was not reduced , instead it disappeared , this gives two questions :

what was first , energy or matter?

will the concept of energy disappearance be valid?

regardless of religious concepts I think energy first exists, and then it transformed into matter, a philosophical argument my be:

every mass is energy and not every energy is mass, i.e energy exists in different ways, and it can be changed into different forms this characteristic makes it capable to change into mass , however mass exists in one form an atom.

and in order to change into mass it should disappear , another philosophical argument may be:

if mass when it changed into matter did not disappear, then when we release the energy contained in the matter we will have double amount of energy, and energy can not be created , so it should disappear. perhaps this concept is valid in energy transformations , it disappears in a form and appears in another form, the same for a particle when it moves between two positions A and B , it disappears in position A and appears in position B. so if mass disappears in position A and did not appears in position B it will transform into energy, when energy disappears from a particular form and did not appear in another form it will change into matter.