Triparno Bandyopadhyay

@srmist.edu.in

Research Assistant Professor, Department of Physics and Nanotechnology
SRM Institute of Science and Technology

Triparno Bandyopadhyay


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https://researchid.co/triparno

RESEARCH INTERESTS

Particle Physics
20

Scopus Publications

Scopus Publications

  • Potential for the discovery of the protophobic boson at the STCF
    Althaf M., Triparno Bandyopadhyay
    Journal of High Energy Physics, 2026
    A bstract We study the morphology of the main drift chamber (MDC) to be built around the collision point of the proposed Super tau-charm facility (STCF), to check its suitability for discovering the 17 MeV protophobic boson (X17 boson), hypothesised as a solution to the persistent ATOMKI nuclear-transition anomalies. Using the TrackEff framework, we perform detector-level simulations of the STCF MDC, and evaluate displaced-vertex sensitivities towards the protophobic boson, across the relevant mass-coupling parameter space. We study benchmark scenarios with visible and dark decay channels to perform likelihood-based significance estimates in order to determine the 5 σ discovery reach for the protophobic boson. We find that STCF can potentially discover the protophobic boson while tolerating ~ 10 4 background events for specific regions of the parameter space. Our analysis establishes the first feasibility study of displaced light-boson searches at the STCF, motivating a full Geant-4 simulation.
  • The E6 route to multicomponent dark matter
    Triparno Bandyopadhyay, Rinku Maji
    European Physical Journal C, 2025
    We present a framework of dark- and visible-sector unification in the E 6 embedding of the standard model. The demand for consistently getting the standard model leads to the existence of the dark-sector. We show that the hierarchy of vevs typifying unified models leads to multicomponent dark matter at the IR. The symmetry breaking itself categorises the matter content into dark- and visible-sector particles, the categorisation being uniform across different breaking chains. We discuss the stability of the dark matter particles and compare them to existing phenomenological models of dark matter. The central results follow from symmetry and hierarchy arguments. We present an indicative set of models of gauge coupling unification, to show that the framework can be embedded in realistic models of E 6 .
  • Correction to: CEPC Technical Design Report: Accelerator (Radiation Detection Technology and Methods, (2024), 8, 1, (1-1105), 10.1007/s41605-024-00463-y)
    Waleed Abdallah, Tiago CarlosAdorno de Freitas, Konstantin Afanaciev, Shakeel Ahmad, Ijaz Ahmed, Xiaocong Ai, Abid Aleem, Wolfgang Altmannshofer, Fabio Alves, Weiming An, Rui An, Daniele Paolo Anderle, Stefan Antusch, Yasuo Arai, Andrej Arbuzov, Abdesslam Arhrib, Mustafa Ashry, Sha Bai, Yu Bai, Yang Bai, Vipul Bairathi, Csaba Balazs, Philip Bambade, Yong Ban, Triparno Bandyopadhyay, Shou-Shan Bao, Desmond P. Barber, Ays¸e Bat, Varvara Batozskaya, Subash Chandra Behera, Alexander Belyaev, Michele Bertucci, Xiao-Jun Bi, Yuanjie Bi, Tianjian Bian, Fabrizio Bianchi, Thomas Bieko¨tter, Michela Biglietti, Shalva Bilanishvili, Deng Binglin, Denis Bodrov, Anton Bogomyagkov, Serge Bondarenko, Stewart Boogert, Maarten Boonekamp, Marcello Borri, Angelo Bosotti, Vincent Boudry, Mohammed Boukidi, Igor Boyko, Ivanka Bozovic, Giuseppe Bozzi, Jean-Claude Brient, Anastasiia Budzinskaya, Masroor Bukhari, Vladimir Bytev, Giacomo Cacciapaglia, Hua Cai, Wenyong Cai, Wujun Cai, Yijian Cai, Yizhou Cai, Yuchen Cai, Haiying Cai, Huacheng Cai, Lorenzo Calibbi, Junsong Cang, Guofu Cao, Jianshe Cao, Antoine Chance, Xuejun Chang, Yue Chang, Zhe Chang, Xinyuan Chang, Wei Chao, Auttakit Chatrabhuti, Yimin Che, Yuzhi Che, Bin Chen, Danping Chen, Fuqing Chen, Fusan Chen, Gang Chen, Guoming Chen, Hua-Xing Chen, Huirun Chen, Jinhui Chen, Ji-Yuan Chen, Kai Chen, Mali Chen, Mingjun Chen, Mingshui Chen, Ning Chen, Shanhong Chen, Shanzhen Chen, Shao-Long Chen, Shaomin Chen, Shiqiang Chen, Tianlu Chen, Wei Chen, Xiang Chen, Xiaoyu Chen, Xin Chen, Xun Chen, Xurong Chen, Ye Chen, Ying Chen, Yukai Chen, Zelin Chen, Zilin Chen, Gang Chen, Boping Chen, Chunhui Chen, Hok Chuen Cheng, Huajie Cheng, Shan Cheng, Tongguang Cheng, Yunlong Chi, Pietro Chimenti, Wen Han Chiu, Guk Cho, Ming-Chung Chu, Xiaotong Chu, Ziliang Chu, Guglielmo Coloretti, Andreas Crivellin, Hanhua Cui, Xiaohao Cui, Zhaoyuan Cui, Brunella D’Anzi, Ling-Yun Dai, Xinchen Dai, Xuwen Dai, Antonio De Maria, Nicola De Filippis, Christophe De La Taille, Francesca De Mori, Chiara De Sio, Elisa Del Core, Shuangxue Deng, Wei-Tian Deng, Zhi Deng, Ziyan Deng, Bhupal Dev, Tang Dewen, Biagio Di Micco, Ran Ding, Siqin Ding, Yadong Ding, Haiyi Dong, Jianing Dong, Jing Dong, Lan Dong, Mingyi Dong, Xu Dong, Yipei Dong, Yubing Dong, Milos Dordevic, Marco Drewes, Mingxuan Du, Mingxuan Du, Qianqian Du, Xiaokang Du, Yanyan Du, Yong Du, Yunfei Du, Chun-Gui Duan, Zhe Duan, Yahor Dydyshka, Ulrik Egede, Walaa Elmetenawee, Yun Eo, Ka Yan Fan, Kuanjun Fan, Yunyun Fan, Bo Fang, Shuangshi Fang, Yuquan Fang, Ada Farilla, Riccardo Farinelli, Muhammad Farooq, Angeles Faus Golfe, Almaz Fazliakhmetov, Rujun Fei, Bo Feng, Chong Feng, Junhua Feng, Xu Feng, Zhuoran Feng, ZhuoranFeng, Luis Roberto Flores Castillo, Etienne Forest, Andrew Fowlie, Harald Fox, Hai-Bing Fu, Jinyu Fu, Benjamin Fuks, Yoshihiro Funakoshi, Emidio Gabrielli, Nan Gan, Li Gang, Jie Gao, Meisen Gao, Wenbin Gao, Wenchun Gao, Yu Gao, Yuanning Gao, Zhanxiang Gao, Yanyan Gao, Kun Ge, Shao-Feng Ge, Zhenwu Ge, Li-Sheng Geng, Qinglin Geng, Chao-Qiang Geng, Swagata Ghosh, Antonio Gioiosa, Leonid Gladilin, Ti Gong, Stefania Gori, Quanbu Gou, Sebastian Grinstein, Chenxi Gu, Gerardo Guillermo, Joao Guimaraes da Costa, Dizhou Guo, Fangyi Guo, Jiacheng Guo, Jun Guo, Lei Guo, Lei Guo, Xia Guo, Xin-Heng Guo, Xinyang Guo, Yun Guo, Yunqiang Guo, Yuping Guo, Zhi-Hui Guo, Alejandro Gutie´rrez-Rodríguez, Seungkyu Ha, Noman Habib, Jan Hajer, Francois Hammer, Chengcheng Han, Huayong Han, Jifeng Han, Liang Han, Liangliang Han, Ruixiong Han, Yang Han, Yezi Han, Yuanying Han, Tao Han, Jiankui Hao, Xiqing Hao, XiqingHao, Chuanqi He, Dayong He, Dongbing He, Guangyuan He, Hong-Jian He, Jibo He, Jun He, Longyan He, Xiang He, Xiao-Gang He, Zhenqiang He, Klaus Heinemann, Sven Heinemeyer, Yuekun Heng, María A. Herna´ndez-Ruíz, Jiamin Hong, Yuenkeung Hor, George W. S. Hou, Xiantao Hou, Xiaonan Hou, Zhilong Hou, Suen Hou, Caishi Hu, Chen Hu, Dake Hu, Haiming Hu, Jiagen Hu, Jun Hu, Kun Hu, Shouyang Hu, Yongcai Hu, Yu Hu, Zhen Hu, Zhehao Hua, Jianfei Hua, Chao-Shang Huang, Fa Peng Huang, Guangshun Huang, Jinshu Huang, Ke Huang, Liangsheng Huang, Shuhui Huang, Xingtao Huang, Xu-Guang Huang, Yanping Huang, Yonggang Huang, Yongsheng Huang, Zimiao Huang, Chen Huanyuan, Changgi Huh, Jiaqi Hui, Lihua Huo, Talab Hussain, Kyuyeong Hwang, Ara Ioannisian, Munawar Iqbal, Paul Jackson, Shahriyar Jafarzade, Haeun Jang, Seoyun Jang, Daheng Ji, Qingping Ji, Quan Ji, Xiaolu Ji, Jingguang Jia, Jinsheng Jia, Xuewei Jia, Zihang Jia, Cailian Jiang, Han Ren Jiang, Houbing Jiang, Jun Jiang, Xiaowei Jiang, Xin Jiang, Xuhui Jiang, Yongcheng Jiang, Zhongjian Jiang, Cheng Jiang, Ruiqi Jiao, Dapeng Jin, Shan Jin, Song Jin, Yi Jin, Junji Jis, Sunghoon Jung, Goran Kacarevic, Eric Kajfasz, Lidia Kalinovskaya, Aleksei Kampf, Wen Kang, Xian-Wei Kang, Xiaolin Kang, Biswajit Karmakar, Zhiyong Ke, Rijeesh Keloth, Alamgir Khan, Hamzeh Khanpour, Khanchai Khosonthongkee, KhanchaiKhosonthongkee, Bobae Kim, Dongwoon Kim, Mi Ran Kim, Minsuk Kim, Sungwon Kim, On Kim, Michael Klasen, Sanghyun Ko, Ivan Koop, Vitaliy Kornienko, Bryan Kortman, Gennady Kozlov, Shiqing Kuang, Mukesh Kumar, Chia Ming Kuo, Tsz Hong Kwok, Franc¸ois Sylvain Ren Lagarde, Pei-Zhu Lai, Imad Laktineh, Xiaofei Lan, Zuxiu Lan, Lia Lavezzi, Justin Lee, Junghyun Lee, Sehwook Lee, Ge Lei, Roy Lemmon, Yongxiang Leng, Sze Ching Leung, Hai Tao Li, Bingzhi Li, Bo Li, Bo Li, Changhong Li, Chao Li, Cheng Li, Cheng Li, Chunhua Li, Cui Li, Dazhang Li, Dikai Li, Fei Li, Gang Li, Gang Li, Gang Li, Gaosong Li, Haibo Li, Haifeng Li, Hai-Jun Li, Haotian Li, Hengne Li, Honglei Li, Huijing Li, Jialin Li, Jingyi Li, Jinmian Li, Jun Li, Leyi Li, Liang Li, Ling Li, Mei Li, Meng Li, Minxian Li, Pei-Rong Li, Qiang Li, Shaopeng Li, Shenghe Li, Shu Li, Shuo Li, Teng Li, Tiange Li, Tong Li, Weichang Li, Weidong Li, Wenjun Li, Xiaoling Li, Xiaomei Li, Xiaonan Li, Xiaoping Li, Xiaoting Li, Xin Li, Xinqiang Li, Xuekang Li, Yang Li, Yanwei Li, Yiming Li, Ying Li, Ying-Ying Li, Yonggang Li, Yonglin Li, Yufeng Li, Yuhui Li, Zhan Li, Zhao Li, Zhiji Li, Tong Li, Lingfeng Li, Fei Li, Jing Liang, Jinhan Liang, Zhijun Liang, Guangrui Liao, Hean Liao, Jiajun Liao, Libo Liao, Longzhou Liao, Yi Liao, Yipu Liao, Ayut Limphirat, AyutLimphirat, Tao Lin, Weiping Lin, Yufu Lin, Yugen Lin, Beijiang Liu, Bo Liu, Danning Liu, Dong Liu, Fu-Hu Liu, Hongbang Liu, Huangcheng Liu, Hui Liu, Huiling Liu, Jia Liu, Jia Liu, Jiaming Liu, Jianbei Liu, Jianyi Liu, Jingdong Liu, Jinhua Liu, Kai Liu, Kang Liu, Kun Liu, Mengyao Liu, Peng Liu, Pengcheng Liu, Qibin Liu, Shan Liu, Shidong Liu, Shuang Liu, Shubin Liu, Tao Liu, Tao Liu, Tong Liu, Wei Liu, Xiang Liu, Xiao-Hai Liu, Xiaohui Liu, Xiaoyu Liu, Xin Liu, Xinglin Liu, Xingquan Liu, Yang Liu, Yanlin Liu, Yao-Bei Liu, Yi Liu, Yiming Liu, Yong Liu, Yonglu Liu, Yu Liu, Yubin Liu, Yudong Liu, Yulong Liu, Zhaofeng Liu, Zhen Liu, Zhenchao Liu, Zhi Liu, Zhi-Feng Liu, Zhiqing Liu, Zhongfu Liu, Zuowei Liu, Mia Liu, Zhen Liu, Xiaoyang Liu, Xinchou Lou, Cai-Dian Lu, Jun-Xu Lu, Qiu Zhen Lu, Shang Lu, Shang Lu, Wenxi Lu, Xiaohan Lu, Yunpeng Lu, Zhiyong Lu, Xianguo Lu, Wei Lu, Bayarto Lubsandorzhiev, Sultim Lubsandorzhiev, Arslan Lukanov, Jinliang Luo, Tao Luo, xiaoan Luo, Xiaofeng Luo, Xiaolan Luo, Jindong Lv, Feng Lyu, Xiao-Rui Lyu, Kun-Feng Lyu, Ande Ma, Hong-Hao Ma, Jun-Li Ma, Kai Ma, Lishuang Ma, Na Ma, Renjie Ma, Weihu Ma, Xinpeng Ma, Yanling Ma, Yan-Qing Ma, Yongsheng Ma, Zhonghui Ma, Zhongjian Ma, Yang Ma, Mousam Maity, Lining Mao, Yanmin Mao, Yaxian Mao, Aure´lien Martens, Caccia Massimo Luigi Maria, Shigeki Matsumoto, Bruce Mellado, Davide Meloni, Lingling Men, Cai Meng, Lingxin Meng, Zhenghui Mi, Yuhui Miao, Mauro Migliorati, Lei Ming, Vasiliki A. Mitsou, Laura Monaco, Arthur Moraes, Karabo Mosala, Ahmad Moursy, Lichao Mu, Zhihui Mu, Nickolai Muchnoi, Daniel Muenstermann, Daniel Muenstermann, Pankaj Munbodh, William John Murray, Jérôme Nanni, Dmitry Nanzanov, Changshan Nie, Sergei Nikitin, Feipeng Ning, Guozhu Ning, Jia-Shu Niu, Juan-Juan Niu, Yan Niu, Edward Khomotso Nkadimeng, Kazuhito Ohmi, Katsunobu Oide, Hideki Okawa, Mohamed Ouchemhou, Qun Ouyang, Daniele Paesani, Carlo Pagani, Stathes Paganis, Collette Pakuza, Jiangyang Pan, Juntong Pan, Tong Pan, Xiang Pan, Papia Panda, Saraswati Pandey, Mila Pandurovic, Rocco Paparella, Roman Pasechnik, Emilie Passemar, Hua Pei, Xiaohua Peng, Xinye Peng, Yuemei Peng, Jialun Ping, Ronggang Ping, Souvik Priyam Adhya, Baohua Qi, Hang Qi, Huirong Qi, Ming Qi, Sen Qian, Zhuoni Qian, Congfeng Qiao, Guangyou Qin, Jiajia Qin, Laishun Qin, Liqing Qin, Qin Qin, Xiaoshuai Qin, Zhonghua Qin, Guofeng Qu, Antonio Racioppi, Michael Ramsey-Musolf, Shabbar Raza, Vladimir Rekovic, Jing Ren, Ju¨rgen Reuter, Tania Robens, Giancarlo Rossi, Manqi Ruan, Manqi Ruan, Leonid Rumyantsev, Min Sang Ryu, Renat Sadykov, Minjing Sang, Juan Jose´ Sanz-Cillero, Miroslav Saur, Nishil Savla, Michael A. Schmidt, Daniele Sertore, Ron Settles, Peng Sha, Ding-Yu Shao, Ligang Shao, Hua-Sheng Shao, Xin She, Chuang Shen, Hong-Fei Shen, Jian-Ming Shen, Peixun Shen, Qiuping Shen, Zhongtao Shen, Shuqi Sheng, Haoyu Shi, Hua Shi, Qi Shi, Shusu Shi, Xiaolei Shi, Xin Shi, Yukun Shi, Zhan Shi, Ian Shipsey, Gary Shiu, Chang Shu, Zong-Guo Si, Andrei Sidorenkov, Ivan Smiljanić, Aodong Song, Huayang Song, Jiaojiao Song, Jinxing Song, Siyuan Song, Weimin Song, Weizheng Song, Zhi Song, Shashwat Sourav, Paolo Spruzzola, Feng Su, Shengsen Su, Wei Su, Shufang Su, Yanfeng Sui, Zexuan Sui, Michael Sullivan, Baiyang Sun, Guoqiang Sun, Hao Sun, Hao-Kai Sun, Junfeng Sun, Liang Sun, Mengcheng Sun, Pengfei Sun, Sichun Sun, Xianjing Sun, Xiaohu Sun, Xilei Sun, Xingyang Sun, Xin-Yuan Sun, Yanjun Sun, Yongzhao Sun, Yue Sun, Zheng Sun, Zheng Sun, Narumon Suwonjandee, Elsayed Tag Eldin, Biao Tan, Bo Tang, Chuanxiang Tang, Gao Tang, Guangyi Tang, Jian Tang, Jingyu Tang, Liang Tang, Ying’Ao Tang, Junquan Tao, Abdel Nasser Tawfik, Geoffrey Taylor, Valery Telnov, Saike Tian, Riccardo Torre, Wladyslaw Henryk Trzaska, Dmitri Tsybychev, Yanjun Tu, Shengquan Tuo, Michael Tytgat, Ghalib Ul Islam, Nikita Ushakov, German Valencia, Jaap Velthuis, Alessandro Vicini, Trevor Vickey, Ivana Vidakovic, Henri Videau, Raymond Volkas, Dmitry Voronin, Natasa Vukasinovic, Xia Wan, Xuying Wan, Xiao Wang, Anqing Wang, Bin Wang, Chengtao Wang, Chuanye Wang, Ci Wang, Dayong Wang, Dou Wang, En Wang, Fei Wang, Fei Wang, Guanwen Wang, Guo-Li Wang, Haijing Wang, Haolin Wang, Jia Wang, Jian Wang, Jianchun Wang, Jianli Wang, Jiawei Wang, Jin Wang, Jin-Wei Wang, Joseph Wang, Kechen Wang, Lechun Wang, Lei Wang, Liguo Wang, Lijiao Wang, Lu Wang, Meng Wang, Na Wang, Pengcheng Wang, Qian Wang, Qun Wang, Shu Lin Wang, Shudong Wang, Taofeng Wang, Tianhong Wang, Tianyang Wang, Tong Wang, Wei Wang, Wei Wang, Xiaolong Wang, Xiaolong Wang, Xiaoning Wang, Xiao-Ping Wang, Xiongfei Wang, Xujian Wang, Yaping Wang, Yaqian Wang, Yi Wang, Yiao Wang, Yifang Wang, Yilun Wang, Yiwei Wang, You-Kai Wang, Yuanping Wang, Yuexin Wang, Yuhao Wang, Yu-Ming Wang, Yuting Wang, Zhen Wang, Zhigang Wang, Weiping Wang, Zeren Simon Wang, Biao Wang, Hui Wang, Lian-Tao Wang, Zihui Wang, Zirui Wang, Jia Wang, Tong Wang, Daihui Wei, Shujun Wei, Wei Wei, Xiaomin Wei, Yuanyuan Wei, Yingjie Wei, Liangjian Wen, Xuejun Wen, Yufeng Wen, Martin White, Peter Williams, Zef Wolffs, William John Womersley, Baona Wu, Bobing Wu, Guanjian Wu, Jinfei Wu, Lei Wu, Lina Wu, Linghui Wu, Minlin Wu, Peiwen Wu, Qi Wu, Qun Wu, Tianya Wu, Xiang Wu, Xiaohong Wu, Xing-Gang Wu, Xuehui Wu, Yaru Wu, Yongcheng Wu, Yuwen Wu, Zhi Wu, Xin Wu, Lei Xia, Ligang Xia, Shang Xia, Benhou Xiang, Dao Xiang, Zhiyu Xiang, Bo-Wen Xiao, Chu-Wen Xiao, Dong Xiao, Guangyan Xiao, Han Xiao, Meng Xiao, Ouzheng Xiao, Rui-Qing Xiao, Xiang Xiao, Yichen Xiao, Ying Xiao, Yu Xiao, Yunlong Xiao, Zhenjun Xiao, Hengyuan Xiao, Nian Xie, Yuehong Xie, Tianmu Xin, Ye Xing, Zhizhong Xing, Da Xu, Fang Xu, Fanrong Xu, Haisheng Xu, Haocheng Xu, Ji Xu, Miaofu Xu, Qingjin Xu, Qingnian Xu, Wei Xu, Wei Xu, Weixi Xu, Xinping Xu, Zhen Xu, Zijun Xu, Zehua Xu, Yaoyuan Xu, Feifei Xue, Baojun Yan, Bin Yan, Fen Yan, Fucheng Yan, Jiaming Yan, Liang Yan, Luping Yan, Qi-Shu Yan, Wenbiao Yan, Yupeng Yan, Luping Yan, Haoyue Yan, Dong Yang, Fengying Yang, Guicheng Yang, Haijun Yang, Jin Min Yang, Jing Yang, Lan Yang, Li Yang, Li Lin Yang, Lili Yang, Litao Yang, Mei Yang, Qiaoli Yang, Tiansen Yang, Xiaochen Yang, Yingjun Yang, Yueling Yang, Zhengyong Yang, Zhenwei Yang, Youhua Yang, Xiancong Yang, De-Liang Yao, Shi Yao, Lei Ye, Lingxi Ye, Mei Ye, Rui Ye, Rui Ye, Yecheng Ye, Vitaly Yermolchyk, Kai Yi, Li Yi, Yang Yi, Di Yin, Peng-Fei Yin, Shenghua Yin, Ze Yin, Zhongbao Yin, Zhang Yinhong, Hwi Dong Yoo, Zhengyun You, Charles Young, Boxiang Yu, Chenghui Yu, Fusheng Yu, Jie-Sheng Yu, Jinqing Yu, Lingda Yu, Zhao-Huan Yu, Felix Yu, Bingrong Yu, Changzheng Yuan, Li Yuan, Xing-Bo Yuan, Youjin Yuan, Junhui Yue, Qian Yue, Baobiao Yue, Un Nisa Zaib, Riccardo Zanzottera, Hao Zeng, Ming Zeng, Jian Zhai, Jiyuan Zhai, Xin Zhe Zhai, Xi-Jie Zhan, Ben-Wei Zhang, Bolun Zhang, Di Zhang, Guangyi Zhang, Hao Zhang, Hong-Hao Zhang, Huaqiao Zhang, Hui Zhang, Jialiang Zhang, Jianyu Zhang, Jianzhong Zhang, Jiehao Zhang, Jielei Zhang, Jingru Zhang, Jinxian Zhang, Junsong Zhang, Junxing Zhang, Lei Zhang, Lei Zhang, Liang Zhang, Licheng Zhang, Liming Zhang, Linhao Zhang, Luyan Zhang, Mengchao Zhang, Rao Zhang, Shulei Zhang, Wan Zhang, Wenchao Zhang, Xiangzhen Zhang, Xiaomei Zhang, Xiaoming Zhang, Xiaoxu Zhang, Xiaoyu Zhang, Xuantong Zhang, Xueyao Zhang, Yang Zhang, Yang Zhang, Yanxi Zhang, Yao Zhang, Ying Zhang, Yixiang Zhang, Yizhou Zhang, Yongchao Zhang, Yu Zhang, Yuan Zhang, Yujie Zhang, Yulei Zhang, Yumei Zhang, Yunlong Zhang, Zhandong Zhang, Zhaoru Zhang, Zhen-Hua Zhang, Zhenyu Zhang, Zhichao Zhang, Zhi-Qing Zhang, Zhuo Zhang, Zhiqing Zhang, Cong Zhang, Tianliang Zhang, Luyan Zhang, Guang Zhao, Hongyun Zhao, Jie Zhao, Jingxia Zhao, Jingyi Zhao, Ling Zhao, Luyang Zhao, Mei Zhao, Minggang Zhao, Mingrui Zhao, Qiang Zhao, Ruiguang Zhao, Tongxian Zhao, Yaliang Zhao, Ying Zhao, Yue Zhao, Zhiyu Zhao, Zhuo Zhao, Alexey Zhemchugov, Hongjuan Zheng, Jinchao Zheng, Liang Zheng, Ran Zheng, shanxi zheng, Xu-Chang Zheng, Wang Zhile, Weicai Zhong, Yi-Ming Zhong, Chen Zhou, Daicui Zhou, Jianxin Zhou, Jing Zhou, Jing Zhou, Ning Zhou, Qi-Dong Zhou, Shiyu Zhou, Shun Zhou, Sihong Zhou, Xiang Zhou, Xingyu Zhou, Yang Zhou, Yong Zhou, Yu-Feng Zhou, Zusheng Zhou, Demin Zhou, Dechong Zhu, Hongbo Zhu, Huaxing Zhu, Jingya Zhu, Kai Zhu, Pengxuan Zhu, Ruilin Zhu, Xianglei Zhu, Yingshun Zhu, Yongfeng Zhu, Xiao Zhuang, Xuai Zhuang, Mikhail Zobov, Zhanguo Zong, Cong Zou, Hongying Zou
    Radiation Detection Technology and Methods, 2025
    In this article all authors name was missing in the springer link. It has been corrected. The original article has been corrected. © 2024 Elsevier B.V., All rights reserved.
  • Dark photons from displaced vertices
    Triparno Bandyopadhyay
    European Physical Journal Special Topics, 2024
  • Kinematics and Particle Identification at Very High Energy Colliders
    Proceedings of Science, 2024
  • CEPC Technical Design Report: Accelerator
    Jie Gao
    Radiation Detection Technology and Methods, 2024
    International audience
  • Kinematics and Particle Identification at Very High Energy Colliders
    Triparno Bandyopadhyay, Samadrita Mukherjee, Sreerup Raychaudhuri, Radhika Vinze
    Springer Proceedings in Physics, 2024
  • A twisted tale of the transverse-mass tail
    Triparno Bandyopadhyay, Ankita Budhraja, Samadrita Mukherjee, Tuhin S. Roy
    Journal of High Energy Physics, 2023
    We propose a tantalizing possibility that misinterpretation of the reconstructed missing momentum may have yielded the observed discrepancies among measurements of the W-mass in different collider experiments. We introduce a proof-of-principle scenario characterized by a new physics particle, which can be produced associated with the W-boson in hadron collisions and contributes to the net missing momentum observed in a detector. We show that these exotic events pass the selection criteria imposed by various collaborations at reasonably high rates. Consequently, in the presence of even a handful of these events, a fit based on the ansatz that the missing momentum is primarily due to neutrinos (as it happens in the Standard Model), yields a W-boson mass that differs from its true value. Moreover, the best fit mass depends on the nature of the collider and the center-of-mass energy of collisions. We construct a barebones model that demonstrates this possibility quantitatively while satisfying current constraints. Interestingly, we find that the nature of the new physics particle and its interactions appear as a variation of the physics of Axion-like particles after a field redefinition.
  • Flavor physics with generalized ALP-quark couplings
    Triparno Bandyopadhyay, Subhajit Ghosh, Tuhin S. Roy
    Physical Review D, 2022
    : A light axion-like particle or an ALP not just gives rise to interesting and spectacular signals of new physics as final states in meson decays, it necessarily leaves tell-tale signatures in processes that involve standard model (SM) fields only (i.e., SM processes). These effects result in the violation of the Gell-Mann–Okubo mass relation, modified form factors, altered integrated and differential rates for various SM transitions etc. This suggests that in the presence of a low lying state, such as an ALP, extraction of masses, mixing angles, and form factors in an entirely data-driven way from meson-physics observables is a highly non-trivial exercise. However, once done correctly, these same observables may, in turn, provide important (indirect) bounds on ALP physics, which remain robust even in the limits where new physics effects conspire to weaken the bounds from direct searches. Starting with a generalized ALP-quark Lagrangian (where restrictions due to parity are removed) we demonstrate this approach by focussing on K + (cid:96) 3 decays, where we derive (indirect) bounds on ALP physics using NA48/2 data and lattice results. We also find sum rules which not just show deviations in the presence of an ALP, but also give hints towards the specific nature of the ALP physics itself. by NA48/2 collaboration to fit the truth level distribution against the observed distribution. We combine this multi-variable fit with the constraints set by the independent measurements of the total decay rates to bound ξ 2 α (2) K + π 0 and ξ 2 β (2) K + π 0 . The data consist of bin-by-bin event distributions of the differential decay rate with respect to the pion and the lepton energies ( E π , E µ ), for 4 . 4 × 10 6 and 2 . 3 × 10 6 reconstructed events corresponding to K + e 3 and K + µ 3 respectively. Using the data for K + µ 3 , we draw the binned Dalitz distribution for the residual events, defined as the differences between accepted events and SM predictions. We show this in the bottom-left panel of Figure 3. The diagonal panels show the distributions of excess events with 1 σ experimental error-bars with respect to E π (bottom-right) and E µ (top-left), after marginalizing over the E µ and E π bins respectively. On the top-right panel, we show the 2D distribution of excess NP events with ξ 2 β (2) K + π 0 = 0 . 06 , ξ 2 α (2) K + π 0 = 0. The binned and marginalized distributions of the excess BSM events are shown in the panels containing the corresponding marginal distributions for the data. Although the residual fluctuations show a slight systematic excess in Figure 3, the excess becomes consistent with the SM prediction when the theory error is taken into account. The data corresponding to the differential rate for K + µ 3 is the primary source of constraint for ξ 2 β (2) K + π 0 . We note, both ξ 2 β (2) K + π 0 and ξ 2 α (2) K + π 0 appear in the same footing as the relative factor between q µ and Q µ in the amplitude in eq. The exact form of this factor is:
  • Displaced searches for light vector bosons at Belle II
    Triparno Bandyopadhyay, Sabyasachi Chakraborty, Sokratis Trifinopoulos
    Journal of High Energy Physics, 2022
    With a design luminosity of 50 ab−1 and detectors with tracking capabilities extending beyond 1 m, the Belle II experiment is the perfect laboratory for the search of particles that couple weakly to the Standard Model and have a characteristic decay length of a few centimetres and more. We show that for models of dark photons and other light vector bosons, Belle II will be successful in probing regions of parameter space which are as of now unexplored by any experiment. In addition, for models where the vector boson couples sub-dominantly to the electron and quarks as compared to muons, e.g. in the Lμ−Lτ model, Belle II will probe regions of mass and couplings compatible with the anomalous magnetic moment of muon. We discuss these results and derive the projected sensitivity of Belle II for a handful of other models. Finally, even with the currently accumulated data, ∼ 200 fb−1, Belle II should be able to cover regions of parameter space pertaining to the X(17) boson postulated to solve the ATOMKI anomaly.
  • Signatures of generalized ALP interactions in SM decays of mesons
    20th Conference on Flavor Physics and CP Violation Fpcp 2022, 2022
  • Sifting through the SM for the hints of an ALP
    Proceedings of Science, 2022
  • Notes on a Z′
    Triparno Bandyopadhyay, Gautam Bhattacharyya, Dipankar Das, Amitava Raychaudhuri
    Springer Proceedings in Physics, 2021
  • Complementary bound on the W′ mass from Higgs boson to diphoton decays
    Triparno Bandyopadhyay, Dipankar Das, Roman Pasechnik, Johan Rathsman
    Physical Review D, 2019
  • Reappraisal of constraints on Z′ models from unitarity and direct searches at the LHC
    Triparno Bandyopadhyay, Gautam Bhattacharyya, Dipankar Das, Amitava Raychaudhuri
    Physical Review D, 2018
  • dd Sector Leading to Left-Right Symmetric Unification
    Triparno Bandyopadhyay, Amitava Raychaudhuri
    Springer Proceedings in Physics, 2018
  • A reappraisal of constraints on Z0 models from unitarity and direct searches at the LHC
    Proceedings of Science, 2018
  • Left–right model with TeV fermionic dark matter and unification
    Triparno Bandyopadhyay, Amitava Raychaudhuri
    Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, 2017
  • Implications of the CMS search for WR on grand unification
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