ИСТИНА

I owe a debt of gratitude to my advisor, Dr. Juan Pablo Fernandez Ramos. His supervision made it possible for me to finish a wonderful analysis while successfully navigating the procedures and politics of a large collaboration. I always appreciate his enthusiasm and excitement over the amazing opportunities we have in the present day for new discoveries. I would also like to thank the rest of the CIEMAT. In particular, I appreciate the advice and guidance of Dr. Oscar Gonzalez Lopez. His deep knowledge in high energy physics was a great inspiration to me during these years; and not only this, I also thank his support selflessly to any unexpected situation that I found during my stay at Fermilab. And last but not least, no exaggeration to say that this thesis would not have been possible without the help of Dr. Igor V. Gorelov. I feel very fortunate to have had the opportunity to work with this great scientist. His huge experience in the study of resonances has been crucial to me, and also I took good note of his love for the work well done, self-critical spirit and his eagerness to always document the work clearly. I don’t want to forget the Fermilab staffs and the technical staffs of the participating institutions for their vital contributions doing possible accumulate the large data sample used in this thesis.