The study of elementary particles and their interactions (PPGPE Responsive PDRA Call 2022)

基本粒子及其相互作用的研究（PPGPE 响应 PDRA 电话 2022）

• 批准号: ST/X006042/1
• 负责人: Gavin Davies
• 金额: $ 163.94万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FX006042%2F1
• 关键词: study; elementary; particles; their; interactions

This grant is to continue the group's programme of investigation into the properties of elementary particles and the fundamental forces of nature. In particular the focus is on the operation of, and data analysis from, three particular experiments: CMS and LHCb at the LHC and the MIGDAL experiment at RAL. One of the main objectives of this grant will be to support the exploitation of the LHC experiments which will be taking data during the period of this grant. The CMS experiment will continue to characterize the Higgs boson, which provides a unique window onto new physics (NP), and to use such measurements to search for this physics. The di-tau final state provides a unique probe of some of the properties of the Higgs boson and this Higgs decay will be exploited. Greatest sensitivity to new physics comes from the combination of all decay modes and 'combination and interpretation' activities will be another focus of this grant. It will also be possible to extend our searches for long-lived particles and other new phenomena. All CMS posts will support our mission critical M&O activities, in areas where we have the academic leadership. The LHCb experiment will offer complementary tests of the Standard Model (SM) and beyond with the ability to look for extremely rare decays in flavour physics, which are sensitive to contributions from new physics. Measurements led by the group have revealed deviations from the SM, potentially indicating lepton non-universality and NP. Such NP models predict much larger effects in events involving tau leptons, motivating our proposal to make a world-leading measurement of the tau anomalous magnetic moment.Around a quarter of the Universe is composed of dark matter and its nature is unknown. This has so far remained undetected in the laboratory and the group will continue its activity in searching for direct evidence of a dark matter candidate through the LUX-ZEPLIN experiment, along with preparations for the next generation detector. Particular focus in this grant will be given to the first observation of the 'Migdal effect' in nuclear scattering. This effect can be used to extend the sensitivity of these searches to lighter particles.

这笔赠款是为了继续该小组对基本粒子的性质和自然的基本力量的调查方案。特别是重点是操作，并从三个特定的实验数据分析：CMS和LHCb在LHC和MIGDAL实验在RAL。这笔赠款的主要目标之一将是支持利用LHC实验，这些实验将在赠款期间获取数据。CMS实验将继续表征希格斯玻色子，这为新物理学（NP）提供了一个独特的窗口，并使用这种测量来寻找这种物理学。di-tau的最终状态提供了一个独特的探测希格斯玻色子的一些属性和希格斯衰变将被利用。对新物理的最大敏感性来自于所有衰变模式的组合，“组合和解释”活动将是该资助的另一个重点。这也将有可能扩展我们对长寿命粒子和其他新现象的研究。所有CMS职位将支持我们的使命关键M&O活动，在我们拥有学术领导力的领域。LHCb实验将提供标准模型（SM）的补充测试，并有能力寻找味道物理学中极其罕见的衰变，这对新物理学的贡献很敏感。由该小组领导的测量揭示了与SM的偏差，可能表明轻子非普适性和NP。这样的NP模型预测了涉及τ轻子的事件中更大的影响，激发了我们对τ异常磁矩进行世界领先测量的提议。宇宙中大约四分之一是由暗物质组成的，其性质尚不清楚。到目前为止，这在实验室中尚未被发现，该小组将继续通过LUX-ZEPLIN实验寻找暗物质候选者的直接证据，沿着下一代探测器的准备工作。特别是在这个补助金的重点将给予第一次观察的“米格达尔效应”在核散射。这种效应可用于将这些搜索的灵敏度扩展到较轻的粒子。

项目成果

Helium identification with LHCb

• DOI: 10.1088/1748-0221/19/02/p02010
• 发表时间: 2023-10
• 期刊: Journal of Instrumentation
• 影响因子: 1.3
• 作者: L. C. R. Aaij;A. Abdelmotteleb;C. Beteta;F. Abudin'en;T. Ackernley;B. Adeva;M. Adinolfi;P. Adlarson;C. Agapopoulou;C. Aidala;Z. Ajaltouni;S. Akar;K. Akiba;P. Albicocco;J. Albrecht;Federico Alessio;M. Alexander;A. A. Albero-A.;Z. Aliouche;P. Cartelle;R. Amalric;S. Amato;J. Amey;Y. Amhis;L. An;L. Anderlini;M. Andersson;A. Andreianov;P. Andreola;M. Andreotti;D. Andreou;A. Anelli;D. Ao;F. Archilli;M. Argenton;S. A. Cuendis;A. Artamonov;M. Artuso;E. Aslanides;M. Atzeni;B. Audurier;D. Bacher;I. Perea;S. Bachmann;M. Bachmayer;J. Back;A. Bailly-reyre;P. Rodriguez;V. Balagura;W. Baldini;J. B. Leite;M. Barbetti;I. R. Barbosa;R. Barlow;S. Barsuk;W. Barter;M. Bartolini;F. Baryshnikov;J. Basels;G. Bassi;B. Batsukh;A. Battig;A. Bay;A. Beck;M. Becker;F. Bedeschi;I. Bediaga;A. Beiter;S. Belin;V. Bellee;K. Belous;I. Belov;I. Belyaev;G. Benane;G. Bencivenni;E. Ben-Haim;A. Berezhnoy;R. Bernet;S. Andres;H. C. Bernstein;C. Bertella;A. Bertolin;C. Betancourt;F. Betti;J. Bex;I. Bezshyiko;J. Bhom;M. Bieker;N. Biesuz;P. Billoir;A. Biolchini;M. Birch;F. Bishop;A. Bitadze;A. Bizzeti;M. Blago;T. Blake;F. Blanc;J. Blank;S. Blusk;D. Bobulska;V. Bocharnikov;J. A. Boelhauve;O. B. Garcia;T. Boettcher;A. Bohare;A. Boldyrev;C. Bolognani;R. Bolzonella;N. Bondar;F. Borgato;S. Borghi;M. Borsato;J. T. Borsuk;S. A. Bouchiba;T. Bowcock;A. Boyer;C. Bozzi;M. Bradley;S. Braun;A. Rodriguez;N. Breer;J. Brodzicka;A. B. Gonzalo;J. Brown;D. Brundu;A. Buonaura;L. Buonincontri;A. Burke;C. Burr;A. Bursche;A. Butkevich;J. Butter;J. Buytaert;W. Byczynski;S. Cadeddu;H. Cai;R. Calabrese;L. Calefice;S. Calí;M. Calvi;M. Gomez;J. Bouzas;P. Campana;D. Perez;A. F. C. Quezada;S. Capelli;L. Capriotti;R. Caravaca-Mora;A. Carbone;L. Salgado;R. Cardinale;A. Cardini;P. Carniti;L. Carus;A. Vidal;R. Caspary;G. Casse;J. C. Godínez;M. Cattaneo;G. Cavallero;V. Cavallini;S. Celani;J. Cerasoli;D. Červenkov;S. Cesare;A. Chadwick;I. Chahrour;M. Charles;P. Charpentier;C. A. Barajas;M. Chefdeville;C. Chen;S. Chen;A. Chernov;S. Chernyshenko;V. Chobanova;S. Cholak;M. Chrzaszcz;A. Chubykin;V. Chulikov;P. Ciambrone;M. Cicala;X. C. Vidal;G. Ciezarek;P. Cifra;P. Clarke;M. Clemencic;H. Cliff;J. Closier;J. Cobbledick;C. C. Toapaxi-C.;V. Coco;J. Cogan;E. Cogneras;L. Cojocariu;P. Collins;T. Colombo;A. Comerma-Montells;L. Congedo;A. Contu;N. Cooke;I. Corredoira;A. Correia;G. Corti;J. Meldrum;B. Couturier;D. Craik;M. C. Torres;R. Currie;C. L. Silva;S. Dadabaev;L. Dai;X. Dai;E. Dall’Occo;J. Dalseno;C. D’Ambrosio;J. Daniel;A. Danilina;P. d’Argent;A. Davidson;J. Davies;A. Davis;O. Francisco;C. D. Angelis;J. D. Boer;K. D. Bruyn;S. Capua;M. Cian;U. D. F. C. D. Graca-U.-D.-F.-C.-D.-Graca-2047761640;E. Lucia;J. Miranda;L. Paula;M. Serio;D. Simone;P. Simone;F. D. Vellis;J. A. Vries;F. Debernardis;D. Decamp;V. Dedu;L. Buono;B. Delaney;H. Dembinski;J. Deng;V. Denysenko;O. Deschamps;F. Dettori;B. Dey;P. Nezza;I. Diachkov;S. Didenko;S. Ding;V. Dobishuk;A. Docheva;A. Dolmatov;C. Dong;A. Donohoe;F. Dordei;A. Reis;L. Douglas;A. 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