The player slips when he dies from the enemy

Hi, I'm making a 2d game, basically when the enemy hits the player he has to die, standing still and the controls don't go. I have a problem, I can't understand why but once the player is dead he slips and continues to slide indefinitely. How can I make him stay still? thank you If you can help me, I'll pass the code to you if needed.

 [RequireComponent(typeof(Rigidbody2D), typeof (CapsuleCollider2D), typeof(Animator))]
 public class PlayerController : MonoBehaviour
 { 
     public static class GlobalVariables{
      public static bool isAlive = true;
  }
 
     [SerializeField] FixedJoystick _joystick;
     [SerializeField] float _moveSpeed;
     [SerializeField] Vector2 deathKick = new Vector2(20f, 20f);
     Animator anim;
     Transform transf;
     
     CapsuleCollider2D myBodyCollider;
     Rigidbody2D myRigidbody;
 
 
     private void Start() {
         anim = GetComponent<Animator>();
         transf = GetComponent<Transform>();
         myBodyCollider = GetComponent<CapsuleCollider2D>();
         myRigidbody = GetComponent<Rigidbody2D>();
     }
     public void Attack(){
        
         anim.SetBool("attack", true);
     }
   private void FixedUpdate() {
       if(!GlobalVariables.isAlive) {return; }
       run();
       flipAnim();
       Die();
 
     }
 
     void run(){
         if(!GlobalVariables.isAlive) {return; }
         myRigidbody.velocity = new Vector3(_joystick.Horizontal * _moveSpeed * Time.deltaTime, _joystick.Vertical * _moveSpeed * Time.deltaTime, myRigidbody.velocity.y * Time.deltaTime);
     }
 
     void flipAnim(){
         if(!GlobalVariables.isAlive) {return; }
         if(_joystick.Horizontal > 0){
             anim.SetBool("run", true);
             transf.localScale =  new Vector3(_joystick.Horizontal < 0 ? 1 : 0.1751192f, 0.1842967f, 0.2667874f);
         } else if(_joystick.Horizontal < 0 ) {
             anim.SetBool("run", true);
             transf.localScale =  new Vector3(_joystick.Horizontal > 0 ? 1 : -0.1751192f, 0.1842967f, 0.2667874f);
         } else {
              anim.SetBool("run", false);
         }
     }
 
     void Die(){
         if(myBodyCollider.IsTouchingLayers(LayerMask.GetMask("Enemies"))){
             GlobalVariables.isAlive = false;
             anim.SetTrigger("dead");
             myRigidbody.velocity = deathKick;
         }
     }