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Theoretical overview on heavy flavor physics at LHCb 大型强子对撞机的重味道物理学理论概述
Nuclear and Particle Physics Proceedings Pub Date : 2024-08-01 Epub Date: 2024-06-28 DOI: 10.1016/j.nuclphysbps.2024.06.015
Yue-Long Shen
{"title":"Theoretical overview on heavy flavor physics at LHCb","authors":"Yue-Long Shen","doi":"10.1016/j.nuclphysbps.2024.06.015","DOIUrl":"https://doi.org/10.1016/j.nuclphysbps.2024.06.015","url":null,"abstract":"<div><p>Precise prediction of the heavy hadrons decay amplitudes is of great importance in the determination of the parameters of KM matrix and searching for new physics signals beyond the standard model. Due to the high accuracy of the <em>B</em> meson decay constants, the structure dependent QED corrections should be taken into account for <span><math><mi>B</mi><mo>→</mo><msup><mrow><mi>μ</mi></mrow><mrow><mo>+</mo></mrow></msup><msup><mrow><mi>μ</mi></mrow><mrow><mo>−</mo></mrow></msup></math></span> decays due to the power enhancement, but this effect is numerically negligible for <span><math><mi>B</mi><mo>→</mo><msup><mrow><mi>τ</mi></mrow><mrow><mo>+</mo></mrow></msup><msup><mrow><mi>τ</mi></mrow><mrow><mo>−</mo></mrow></msup></math></span>. The radiative leptonic decays and double radiative decays are the best channels to determine the <em>B</em> meson distribution amplitudes, but one should systematically deal with the power corrections to reduce the uncertainty. The heavy-to-light form factors is one of the most important nonperturbative quantities, and an improved method to improve the theoretical accuracy is to fit the form factors using combined data from Lattice and light-cone sum rules which works well at large recoil region. The power suppressed weak annihilation contribution is phenomenologically important in the nonleptonic decays, and the previously neglected hard-collinear gluon exchange diagrams have the potential to cancel the endpoint singularity arising from the hard gluon exchange. Therefore, more endeavors need to be paid to this topic.</p></div>","PeriodicalId":37968,"journal":{"name":"Nuclear and Particle Physics Proceedings","volume":"345 ","pages":"Pages 4-9"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141540580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Constraint for a light charged Higgs boson and its neutral partners from top quark pairs at the LHC 大型强子对撞机上顶夸克对轻质带电希格斯玻色子及其中性伙伴的约束
Nuclear and Particle Physics Proceedings Pub Date : 2024-08-01 Epub Date: 2024-06-17 DOI: 10.1016/j.nuclphysbps.2024.06.004
ChunHao Fu, Jun Gao
{"title":"Constraint for a light charged Higgs boson and its neutral partners from top quark pairs at the LHC","authors":"ChunHao Fu,&nbsp;Jun Gao","doi":"10.1016/j.nuclphysbps.2024.06.004","DOIUrl":"10.1016/j.nuclphysbps.2024.06.004","url":null,"abstract":"","PeriodicalId":37968,"journal":{"name":"Nuclear and Particle Physics Proceedings","volume":"345 ","pages":"Page 46"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141732180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lattice study of singlet-assisted electroweak phase transition 单子辅助电弱相变的晶格研究
Nuclear and Particle Physics Proceedings Pub Date : 2024-08-01 Epub Date: 2024-06-20 DOI: 10.1016/j.nuclphysbps.2024.05.003
Lauri Niemi, Michael J. Ramsey-Musolf, Guotao Xia
{"title":"Lattice study of singlet-assisted electroweak phase transition","authors":"Lauri Niemi,&nbsp;Michael J. Ramsey-Musolf,&nbsp;Guotao Xia","doi":"10.1016/j.nuclphysbps.2024.05.003","DOIUrl":"10.1016/j.nuclphysbps.2024.05.003","url":null,"abstract":"","PeriodicalId":37968,"journal":{"name":"Nuclear and Particle Physics Proceedings","volume":"345 ","pages":"Page 22"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141731899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Probing neutral triple gauge couplings at the LHC and future e+e− and pp colliders 在大型强子对撞机以及未来的 e+e- 和 pp 对撞机上探测中性三重规耦合
Nuclear and Particle Physics Proceedings Pub Date : 2024-08-01 Epub Date: 2024-06-12 DOI: 10.1016/j.nuclphysbps.2024.05.004
{"title":"Probing neutral triple gauge couplings at the LHC and future e+e− and pp colliders","authors":"","doi":"10.1016/j.nuclphysbps.2024.05.004","DOIUrl":"10.1016/j.nuclphysbps.2024.05.004","url":null,"abstract":"","PeriodicalId":37968,"journal":{"name":"Nuclear and Particle Physics Proceedings","volume":"345 ","pages":"Page 23"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141413838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
B+→K+νν¯ from Belle II and B meson neutral anomalies in non-universal U(1)′ gauged models B+→K</mml:mrow
Nuclear and Particle Physics Proceedings Pub Date : 2024-08-01 Epub Date: 2024-06-14 DOI: 10.1016/j.nuclphysbps.2024.05.007
{"title":"B+→K+νν¯ from Belle II and B meson neutral anomalies in non-universal U(1)′ gauged models","authors":"","doi":"10.1016/j.nuclphysbps.2024.05.007","DOIUrl":"10.1016/j.nuclphysbps.2024.05.007","url":null,"abstract":"","PeriodicalId":37968,"journal":{"name":"Nuclear and Particle Physics Proceedings","volume":"345 ","pages":"Page 29"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141414928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Deep learning based tracking reconstruction and magnetic field measurement research in the muon g-2 experiment 基于深度学习的跟踪重建和μ介子 g-2 实验中的磁场测量研究
Nuclear and Particle Physics Proceedings Pub Date : 2024-08-01 Epub Date: 2024-05-24 DOI: 10.1016/j.nuclphysbps.2024.05.001
{"title":"Deep learning based tracking reconstruction and magnetic field measurement research in the muon g-2 experiment","authors":"","doi":"10.1016/j.nuclphysbps.2024.05.001","DOIUrl":"10.1016/j.nuclphysbps.2024.05.001","url":null,"abstract":"<div><p>The Run1 result of the Fermilab muon g-2 experiment have shown a 4.2 standard deviation between the experimental measurement and theoretical prediction of <span><math><msub><mrow><mi>a</mi></mrow><mrow><mi>μ</mi></mrow></msub></math></span>, strongly indicating a new physics signal. The Fermilab experiment already accumulated 21 times more data compared to the BNL experiment. The J-PARC muon g-2 experiment will collect 3.5 times the statistics compared to Fermilab. With the increases in the collected data volume, and limited by the speed and accuracy, the existing tracking reconstruction and magnetic field measurement method may not fully satisfy the requirement of the experiment. The breakthrough of the deep learning inspires new analysis method in the muon g-2 experiment. In this proceeding, we will present some preliminary research on the tracking reconstruction based on Recurrent Neural Network (RNN), Graph Neural Network (GNN) and the magnetic field measurement based on Physics Informed Neural Network (PINN). The preliminary results show that the deep learning method has enormous potential in these topics.</p></div>","PeriodicalId":37968,"journal":{"name":"Nuclear and Particle Physics Proceedings","volume":"345 ","pages":"Pages 18-21"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141131632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Top-quark decay at next-to-next-to-next-to-leading order in QCD QCD中的次领先阶顶夸克衰变
Nuclear and Particle Physics Proceedings Pub Date : 2024-08-01 Epub Date: 2024-06-12 DOI: 10.1016/j.nuclphysbps.2024.05.010
Long Chen
{"title":"Top-quark decay at next-to-next-to-next-to-leading order in QCD","authors":"Long Chen","doi":"10.1016/j.nuclphysbps.2024.05.010","DOIUrl":"10.1016/j.nuclphysbps.2024.05.010","url":null,"abstract":"","PeriodicalId":37968,"journal":{"name":"Nuclear and Particle Physics Proceedings","volume":"345 ","pages":"Page 32"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141731898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of a muon linac for the J-PARC Muon g − 2/EDM experiment 为 J-PARC μ介子 g - 2/EDM 实验开发μ介子直线加速器
Nuclear and Particle Physics Proceedings Pub Date : 2024-08-01 Epub Date: 2024-06-06 DOI: 10.1016/j.nuclphysbps.2024.03.003
Y. Takeuchi
{"title":"Development of a muon linac for the J-PARC Muon g − 2/EDM experiment","authors":"Y. Takeuchi","doi":"10.1016/j.nuclphysbps.2024.03.003","DOIUrl":"10.1016/j.nuclphysbps.2024.03.003","url":null,"abstract":"<div><p>At Japan Proton Accelerator Research Complex (J-PARC), a muon linac is being developed for future muon <span><math><mi>g</mi><mo>−</mo><mn>2</mn></math></span>/Electric Dipole Moment (EDM) experiments. The muon linac starts with an ultra-slow muon (USM) source that generates muons with an extremely small momentum of 3 keV/c (kinetic energy W=25 meV) by laser ionization of thermal muonium. The generated USMs are accelerated to 5.6 keV by an electrostatic field and injected into a radio frequency quadrupole (RFQ). The injected muons are accelerated to 0.34 MeV by the 324-MHz RFQ. Then, the energy of the muon beam is boosted to 4.5 MeV with a 324-MHz interdigital H-type drift tube linac (IH-DTL). Following the IH-DTL, 1296-MHz disk-and-washer (DAW) structures accelerate the muon up to 40 MeV. Finally, the muons are accelerated from 40 MeV to 212 MeV using a 2592-MHz disk-loaded traveling wave structure (DLS). In this paper, details of the linac design and the recent progress toward the realization of the world's first muon linac will be discussed.</p></div>","PeriodicalId":37968,"journal":{"name":"Nuclear and Particle Physics Proceedings","volume":"345 ","pages":"Pages 10-15"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141411938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of the muon entrance trigger system for the PSI muEDM experiment 为 PSI muEDM 实验开发μ介子入口触发系统
Nuclear and Particle Physics Proceedings Pub Date : 2024-08-01 Epub Date: 2024-07-02 DOI: 10.1016/j.nuclphysbps.2024.06.007
Tianqi Hu, muEDM collaboration
{"title":"Development of the muon entrance trigger system for the PSI muEDM experiment","authors":"Tianqi Hu,&nbsp;muEDM collaboration","doi":"10.1016/j.nuclphysbps.2024.06.007","DOIUrl":"https://doi.org/10.1016/j.nuclphysbps.2024.06.007","url":null,"abstract":"","PeriodicalId":37968,"journal":{"name":"Nuclear and Particle Physics Proceedings","volume":"345 ","pages":"Page 2"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141542263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Studies of new Higgs boson interactions through nonresonant HH production in the bb¯γγ final state in pp collisions at s = 13 TeV with the ATLAS detector 利用 ATLAS 探测器在 s = 13 TeV 的 pp 对撞中通过 bb¯γγ 最终态中的非共振 HH 产生对新希格斯玻色子相互作用的研究
Nuclear and Particle Physics Proceedings Pub Date : 2024-08-01 Epub Date: 2024-07-02 DOI: 10.1016/j.nuclphysbps.2024.06.005
Zihang Jia, ATLAS collaboration
{"title":"Studies of new Higgs boson interactions through nonresonant HH production in the bb¯γγ final state in pp collisions at s = 13 TeV with the ATLAS detector","authors":"Zihang Jia,&nbsp;ATLAS collaboration","doi":"10.1016/j.nuclphysbps.2024.06.005","DOIUrl":"https://doi.org/10.1016/j.nuclphysbps.2024.06.005","url":null,"abstract":"","PeriodicalId":37968,"journal":{"name":"Nuclear and Particle Physics Proceedings","volume":"345 ","pages":"Page 3"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141542264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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