Player doesn't stop jumping when stop touching the screen[Android]

Hi. I have some code that checks if the player is touching the screen, then if he's touching withing an area, set -Jump to true and if not, set it to false.

This is the code:

 if(Input.touchCount > 0)
 {
     foreach (Touch touch in Input.touches) 
     {
     Vector3 inputGuiPosition = touch.position;
     inputGuiPosition.y = Screen.height - inputGuiPosition.y;
 
     if(inputGuiPosition.x > Screen.width / 5)
     {
         _jump = true;
     }
     else if(_jump == true)
     {
         _jump = false;
     }
     }
 }

When I touch the screen in the right side, and let go, the player keeps jumping. When I souch the screen in the left side, while the player is jumping, he stops jumping I'm guessing the problem is something the _jump is only set to false, if the player touches somewhere else on the screen.

If that is the case, how do I fix it?

Thanks for reading

-Frank