Send jsonArray to method MVC controller

I have the following ajax script

$(function () {$("#btnConfirmParticipants").click(function () {
                        var jsonArray = [];$(".form-horizontal").each(function () {
                            jsonArray.push({ Name: ($(this).find("#Name").val()), Surname: ($(this).find("#Surname").val()), BirthDate: ($(this).find("#BirthDate").val()) });
                        });$.ajax({
                            type: "POST",
                            url: "/ClientReservations/AddParticipants",
                            data: JSON.stringify(jsonArray),
                            dataType: 'application/json; charset=utf-8',
                            success: function (response) {

                            },
                            failure: function (response) {
                                alert(response.responseText);
                            },
                            error: function (response) {
                                alert(response.responseText);
                            }
                        });
                    });
                });

This script is responsible for executing method in controller with List as parameter

[HttpPost]
            [Authorize(Roles ="Klient")]
            public ActionResult AddParticipants(List<Participant> participants)
            {
                return View();
            }

Model **Participant** looks like this

 public class Participant
        {

            public Participant()
            {
                this.Reservation_House_Participant = new HashSet<Reservation_House_Participant>();
            }

            [Display(Name ="Id:")]
            [Required]
            public int Id { get; set; }

            [Display(Name ="Imię:")]
            [Required]
            [MinLength(3),MaxLength(15)]
            public string Name { get; set; }

            [Display(Name ="Nazwisko:")]
            [Required]
            [MinLength(3),MaxLength(15)]
            public string Surname  { get; set; }

            [Display(Name ="Data urodzenia:")]
            [Required]
            [DataType(DataType.Date)]
            [DisplayFormat(DataFormatString ="{0:dd-MM-yyyy}",ApplyFormatInEditMode =true)]
            public DateTime BirthDate { get; set; }
    }

hen I click button to execute ajax script it redirects me to controller method and in debbuger I see that parameter **IList<Participant> participants** is null? What could be the reason?