Wing Sheung Chan

Acknowledgements 171 thanks for visiting me during New Year. I loved our trip to Austria. To all of you, just know that I will always be fine wherever, and will always love you. My dear friends from Hong Kong, thanks for doing everything you can to protect my homeland, while I was away focusing on my research. I wish I could have done more. There were some very difficult times, when I was genuinely depressed, could not sleep well and could not concentrate at work after hearing all the saddening news. But chatting with you guys had always made me feel better and a bit more positive. You and the future of Hong Kong will always be in my prayers. Hold on and take care. Sira, Ira, Jeffrey, Kit, Earl, Peter, Dennis, thanks for welcoming me every time I return to Hong Kong, and finding time to entertain me when I craved for some board game gatherings. Jason, thanks for delaying my thesis writing progress by inviting me to play RO in the most critical times. You are the best bad company. Siu Ming, thanks for visiting me in Amsterdam. Travelling with you is fun. Let’s go visit somewhere else together someday. A very special thanks to Prof. MC Chu, who brought me into the field while I was still a Master’s student. I would not have had the opportunity to pursue a PhD in high-energy physics without you. You have my full respect for your efforts in promoting fundamental science in Hong Kong, which I know is in no way an easy task. It is unfortunate that I missed all the opportunities to meet with you every time you visited Amsterdam or Geneva. I will let you strangle me next time I am back in Hong Kong.