Results 21 to 30 of about 76,653 (166)

Rare weak decays and nuclear structure

EPJ Web of Conferences, 2014
Weak interactions cause the atomic nuclei to decay via beta and double beta decays. Double beta decays are extremely rare since they are weak-interaction processes of the second order. Also (single) beta decays can be extremely rare.
Suhonen Jouni
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K± → π± π0 e+ e− decay width calculation in the lepton center-of-mass system

EPJ Web of Conferences, 2014
We consider the rare decay K± → π± π0 e+ e− currently under analysis by the NA62 Collaboration. A new theoretical approach for the differential decay width has been performed.
Gevorkyan S. R., Misheva M. H.
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First search for resonant enhanced neutrinoless double electron capture in $$^{152}$$ 152 Gd and other rare decays in natural Gd isotopes

European Physical Journal C: Particles and Fields, 2023
A first search for rare decays of gadolinium isotopes was performed with an ultra-low background high-purity germanium detector at Gran Sasso Underground Laboratory (Italy). A 198 g $$\hbox {Gd}_2$$ Gd 2 $$\hbox {O}_3$$ O 3 powder sample was measured for
M. Laubenstein, B. Lehnert, S. S. Nagorny, S. Nisi   +3 more
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Rare beauty and charm decays at LHCb

EPJ Web of Conferences, 2013
Rare heavy flavor decays are an ideal place to search for the effects of potential new particles that modify the decay rates or the Lorentz structure of the decay vertices. The LHCb experiment, a dedicated heavy flavour experiment at the LHC at CERN.
Albrecht Johannes
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Muon induced neutron background in rare decay studies [PDF]

EPJ Web of Conferences
Understanding and mitigating background radiation is crucial for rare decay searches. It is also important for very low cross section measurements relevant to nuclear astrophysics.
Santhosh T., Chaudhuri M., Pose M. S., Nanal V.   +3 more
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Rare Muon Decays

Acta Physica Polonica B, 2013
In this paper, we present a short review of searches for charged lepton flavour violation on the example of rare muon decays. We discuss the evaluation of electron spectrum for muon decay in orbit which is a background process for conversion experiments.
openaire   +3 more sources

Axion-Like Particles at the ILC Giga-Z

Journal of High Energy Physics, 2021
Axion-Like Particles (ALPs) are a generic, calculable, and well motivated extension of the Standard Model with far reaching phenomenology. ALPs that couple only to hypercharge represent one subset of such models, coupling the ALP to both photons and the ...
Noah Steinberg, James D. Wells
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Theory of rare B decays [PDF]

AIP Conference Proceedings, 1995
Theoretical aspects of rare $B$ decays are reviewed. The focus is on the relation between short-distance interactions and physical observables. It is argued that there remain significant uncertainties in the theoretical treatment of certain important quantities.
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Search for double beta decay of 136Xe to the 0 1 + $$ {0}_1^{+} $$ excited state of 136Ba with PandaX-4T

Journal of High Energy Physics
We perform a search of double beta decay of 136Xe to the excited state, 0 1 + $$ {0}_1^{+} $$ , of 136Ba (2νββ- 0 1 + $$ {0}_1^{+} $$ ), using the dual-phase xenon detector of PandaX-4T with the first 94.9-day commissioning data.
The PandaX collaboration, Lingyin Luo, Zihao Bo, Wei Chen, Xun Chen, Yunhua Chen, Zhaokan Cheng, Xiangyi Cui, Yingjie Fan, Deqing Fang, Zhixing Gao, Lisheng Geng, Karl Giboni, Xunan Guo, Xuyuan Guo, Zichao Guo, Chencheng Han, Ke Han, Changda He, Jinrong He, Di Huang, Houqi Huang, Junting Huang, Ruquan Hou, Yu Hou, Xiangdong Ji, Xiangpan Ji, Yonglin Ju, Chenxiang Li, Tao Li, Jiafu Li, Mingchuan Li, Shuaijie Li, Zhiyuan Li, Qing Lin, Jianglai Liu, Congcong Lu, Xiaoying Lu, Yunyang Luo, Wenbo Ma, Yugang Ma, Yajun Mao, Yue Meng, Xuyang Ning, Binyu Pang, Ningchun Qi, Zhicheng Qian, Xiangxiang Ren, Dong Shan, Xiaofeng Shang, Xiyuan Shao, Guofang Shen, Manbin Shen, Wenliang Sun, Yi Tao, Anqing Wang, Guanbo Wang, Hao Wang, Jiamin Wang, Lei Wang, Meng Wang, Qiuhong Wang, Shaobo Wang, Siguang Wang, Wei Wang, Xiuli Wang, Xu Wang, Zhou Wang, Yuehuan Wei, Weihao Wu, Yuan Wu, Mengjiao Xiao, Xiang Xiao, Kaizhi Xiong, Yifan Xu, Shunyu Yao, Binbin Yan, Xiyu Yan, Yong Yang, Peihua Ye, Chunxu Yu, Ying Yuan, Zhe Yuan, Youhui Yun, Xinning Zeng, Minzhen Zhang, Peng Zhang, Shibo Zhang, Shu Zhang, Tao Zhang, Wei Zhang, Yang Zhang, Yingxin Zhang, Yuanyuan Zhang, Li Zhao, Jifang Zhou, Jiaxu Zhou, Ning Zhou, Xiaopeng Zhou, Yubo Zhou, Zhizhen Zhou   +100 more
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Rare Decays at LHCb

EPJ Web of Conferences, 2014
Rare decays of beauty and charm hadrons provide an effective method of testing the Standard Model and probing possible new physics scenarios. The LHCb experiment has published a variety of interesting results in this field, some of which are presented ...
Hall Sam
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