RUI: Studying the Strong Nuclear Force at Augustana University

RUI：在奥古斯塔纳大学研究强核力

• 批准号: 2013082
• 负责人: Nathan Grau
• 金额: $ 13.5万
• 依托单位: Augustana University Association
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2013082&HistoricalAwards=false
• 关键词: RUI; Studying; Strong; Nuclear; Force

This award continues the scientific program to study the strong nuclear force at Augustana University in Sioux Falls, South Dakota. The strong nuclear force is carried by particles called gluons that bind protons and neutrons together to form a nucleus at the core of every atom. Because atoms make up the majority of the observable matter, knowing the number of gluons inside a nucleus and their motion is necessary to understand matter at its fundamental level. The nuclear physics group at Augustana studies the gluon content of the nucleus by analyzing high energy nuclear collisions produced at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory. The group will analyze data from deuterium + gold collisions measured with the PHENIX detector. The group will also participate in the building and installing the new sPHENIX detector, a next-generation detector that will measure results from collisions at RHIC beginning in approximately 2023. This program in strong nuclear physics is the only one of its kind in South Dakota. It provides those in the state and the region opportunities to study and participate in this physics. The proposal will support undergraduates studying physics or pre-engineering. The educational benefits for the students are broad. Students will gain practical skills such as computer programming, analysis of large data sets, electrical engineering application, and mechanical engineering design. These skills are transferable to other vocations of interest to the student, the state, and the nation. Students will participate in weekly collaboration meetings, present at national conferences, and visit collaborating institutions. Such opportunities will build their communication skills, grow their professional network, put them in contact with potential graduate schools, and prepare them for 21st-century technical jobs. An outstanding experimental question in strong-force physics is measuring the nuclear parton distribution function of gluons at low momentum fraction x. This award continues work by the PI and undergraduates to study this area in two ways. First, the measurement of pi0-hadron azimuthal correlations in d + Au at midrapidity of 200 GeV recorded by the PHENIX experiment at RHIC in 2016 will be completed and published. The analysis will utilize the Muon Piston Calorimeter (MPC) and the Muon Piston Calorimeter Extension (MPC-EX). The MPC is a PbWO4 crystal electromagnetic calorimeter. The MPC-EX is a Si-W pre-shower detector with high segmentation that can separate photons from pi-zero decays for E 80 GeV. Using pairs of particles in different pseudorapidity, including the very forward MPC+MPC-EX region, the pair rate and azimuthal correlation shapes will be measured as a function of pair pseudorapidity. These measurements should yield insights to the kinematics of low-x gluons in the nucleus and allow tests of saturation physics or cold nuclear matter energy loss. Second, the group is transitioning from PHENIX to sPHENIX, a next-generation heavy ion detector that will take advantage of high-luminosity RHIC running to measure jets and heavy flavor physics. The group will spend significant time during the summers of 2021 and 2022 helping to build components and install the detector at the interaction region. First data is expected in early 2023. The group will focus on measurements of low-energy jets using two-particle correlations. In the future, the sPHENIX detector is expected to transform into a Day-1 physics detector the Electron-Ion Collider (EIC) that will be built at Brookhaven in the later 2020's. The main physics driver for the EIC is to measure the gluon content of the nucleus.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项延续了位于南达科他州苏福尔斯的奥古斯塔纳大学研究强核力的科学计划。 强大的核力由 一种叫做胶子的粒子，它把质子和中子结合在一起，在每个原子的核心形成一个原子核。 由于原子构成了可观测物质的大部分，因此了解原子核内胶子的数量及其运动对于在基本水平上理解物质是必要的。 奥古斯塔纳的核物理小组通过分析布鲁克海文国家实验室的相对论重离子对撞机（RHIC）产生的高能核碰撞来研究原子核的胶子含量。该小组将分析用PHENIX探测器测量的氘+金碰撞数据。 该小组还将参与建造和安装新的sPHENIX探测器，这是下一代探测器，将在大约2023年开始测量RHIC碰撞的结果。这个强核物理的项目是南达科他州唯一的一个。 它为该州和该地区的人们提供了学习和参与这一物理学的机会。 该提案将支持学习物理或工程预科的本科生。对学生的教育益处是广泛的。学生将获得实用技能，如计算机编程，大型数据集分析，电气工程应用和机械工程设计。 这些技能可以转移到学生，州和国家感兴趣的其他职业。 学生将参加每周的合作会议，出席全国会议，并访问合作机构。这样的机会将培养他们的沟通能力，发展他们的专业网络，让他们与潜在的研究生院联系，并为21世纪的技术工作做好准备。测量低动量分数下胶子的核部分子分布函数是强有力物理中一个突出的实验问题。这个奖项继续PI和本科生的工作，以两种方式研究这一领域。 首先，2016年RHIC PHENIX实验记录的d + Au中快度200 GeV的π 0强子方位角相关测量将完成并发表。分析将使用μ子活塞量热计（MPC）和μ子活塞量热计扩展（MPC-EX）。MPC是PbWO 4晶体电磁量能器。MPC-EX是一种具有高度分段的Si-W预簇射探测器，可以从E80 GeV的π-零衰变中分离光子。使用不同赝快度的粒子对，包括非常向前的MPC+MPC-EX区域，对速率和方位角相关形状将被测量为对赝快度的函数。这些测量应该产生洞察力的低x胶子在核中的运动学，并允许测试饱和物理或冷核物质的能量损失。其次，该小组正在从PHENIX过渡到sPHENIX，这是下一代重离子探测器，将利用高亮度RHIC运行来测量喷流和重味物理。该小组将在2021年和2022年夏天花费大量时间帮助建造组件并在相互作用区域安装探测器。第一个数据预计在2023年初。该小组将专注于使用两粒子相关性测量低能射流。在未来，sPHENIX探测器预计将转变为第一天的物理探测器，电子离子对撞机（EIC）将于2020年代后期在布鲁克海文建造。EIC的主要物理驱动力是测量原子核的胶子含量。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Design and Beam Test Results for the 2-D Projective sPHENIX Electromagnetic Calorimeter Prototype

• DOI: 10.1109/tns.2020.3034643
• 发表时间: 2020-03
• 期刊: IEEE Transactions on Nuclear Science
• 影响因子: 1.8
• 作者: C. Aidala;S. Altaf;R. Belmont;S. Boose;D. Cacace;M. Connors;E. Desmond;J. Frantz;E. Gamez;N. Grau;J. Haggerty;A. Hodges;J. Huang;Ye-seul Kim;M. Lenz;W. Lenz;N. Lewis;E. Mannel;J. Osborn;D. Perepelitsa;M. Phipps;R. Pisani;S. Polizzo;A. Pun;M. Purschke;C. Riedl;T. Rinn;A. C. RomeroHernandez;M. Sarsour;Z. Shi;A. Sickles;C. Smith;S. Stoll;X. Sun;E. Thorsland;F. Vassalli;X. Wang;C. Woody

Measurement of jet-medium interactions via direct photon-hadron correlations in Au+Au and d+Au collisions at sNN=200 GeV

• DOI: 10.1103/physrevc.102.054910
• 发表时间: 2020-05
• 期刊: Physical Review C
• 影响因子: 3.1
• 作者: U. Acharya;A. Adare;S. Afanasiev;C. Aidala;N. Ajitanand;Y. Akiba;R. Akimoto;H. Al-Bataineh;J. Alexander;H. Al-Ta’ani;A. Angerami;K. Aoki;N. Apadula;Y. Aramaki;H. Asano;E. Aschenauer;E. Atomssa;R. Averbeck;T. Awes;B. Azmoun;V. Babintsev;M. Bai;G. Baksay;L. Baksay;B. Bannier;K. Barish;B. Bassalleck;A. Basye;S. Bathe;V. Baublis;C. Baumann;S. Baumgart;A. Bazilevsky;S. Belikov;R. Belmont;R. Bennett;A. Berdnikov;Y. Berdnikov;J. Bhom;L. Bichon;A. Bickley;D. Black;B. Blankenship;D. Blau;J. Bok;V. Borisov;K. Boyle;M. Brooks;J. Bryslawskyj;H. Buesching;V. Bumazhnov;G. Bunce;S. Butsyk;C. Camacho;S. Campbell;V. C. Roman;A. Caringi;P. Castera;C. Chen;C. Chi;M. Chiu;I. Choi;J. Choi;S. Choi;R. Choudhury;P. Christiansen;T. Chujo;P. Chung;O. Chvála;V. Cianciolo;Z. Citron;B. Cole;Z. D. Valle;M. Connors;P. Constantin;N. Cronin;N. Crossette;M. Csanád;T. CsorgHo;T. Dahms;S. Dairaku;I. Danchev;K. Das;A. Datta;M. Daugherity;G. David;M. Dayananda;K. DeBlasio;K. Dehmelt;A. Denisov;A. Deshpande;E. Desmond;K. V. Dharmawardane;O. Dietzsch;L. Ding;A. Dion;J. Do;M. Donadelli;L. D'Orazio;O. Drapier;A. Drees;K. Drees;J. Durham;A. Durum;D. Dutta;S. Edwards;Y. Efremenko;F. Ellinghaus;T. Engelmore;A. Enokizono;H. En’yo;R. Esha;S. Esumi;K. O. Eyser;B. Fadem;W. Fan;D. Fields;M. Finger;Jr.;D. Firak;D. Fitzgerald;F. Fleuret;S. Fokin;Z. Fraenkel;J. Frantz;A. Franz;A. Frawley;K. Fujiwara;Y. Fukao;T. Fusayasu;K. Gainey;C. Gal;P. Garg;A. Garishvili;I. Garishvili;F. Giordano;A. Glenn;H. Gong;X. Gong;M. Gonin;Y. Goto;R. G. Cassagnac;N. Grau;S. Greene;G. Grim;M. Perdekamp;Y. Gu;T. Gunji;L. Guo;H. Gustafsson;T. Hachiya;J. Haggerty;K. Hahn;H. Hamagaki;J. Hamblen;R. Han;S. Han;J. Hanks;E. Hartouni;S. Hasegawa;K. Hashimoto;E. Haslum;R. Hayano;S. Hayashi;X. He;M. Heffner;T. Hemmick;T. Hester;J. Hill;A. Hodges;M. Hohlmann;R. Hollis;W. Holzmann;K. Homma;B. Hong;T. Horaguchi;Y. Hori;D. Hornback;J. Huang;S. Huang;T. Ichihara;R. Ichimiya;J. Ide;H. Iinuma;Y. Ikeda;K. Imai;Y. Imazu;J. Imrek;M. Inaba;A. Iordanova;D. Isenhower;M. Ishihara;A. Isinhue;T. Isobe;M. Issah;A. Isupov;D. Ivanishchev;Y. Iwanaga;B. Jacak;M. Javani;Z. Ji;J. Jia;X. Jiang;J. Jin;B. Johnson;T. Jones;K. Joo;D. Jouan;D. Jumper;F. Kajihara;S. Kametani;N. Kamihara;J. Kamin;S. Kaneti;B. Kang;J. Kang;J. Kang;J. Kapustinsky;K. Karatsu;M. Kasai;D. Kawall;M. Kawashima;A. Kazantsev;T. Kempel;J. Key;V. Khachatryan;P. K. Khandai;A. Khanzadeev;A. Khatiwada;K. Kijima;J. Kikuchi;A. Kim;B. Kim;C. Kim;D. H. Kim;D. Kim;E. Kim;E.J. Kim;H. Kim;K. Kim;S. Kim;Y. Kim;Y. Kim;D. Kincses;E. Kinney;K. Kiriluk;'A. Kiss;E. Kistenev;J. Klatsky;D. Kleinjan;P. Kline;L. Kochenda;Y. Komatsu;B. Komkov;M. Konno;J. Koster;D. Kotchetkov;D. Kotov;A. Kozlov;A. Král;A. Kravitz;F. Krizek;G. Kunde;B. Kurgyis;K. Kurita;M. Kurosawa;Y. Kwon;G. Kyle;R. Lacey;Y. Lai;J. Lajoie;D. Larionova;M. Larionova;A. Lebedev;B. Lee;D. Lee;J. Lee;K. Lee;K. Lee;K. S. Lee;S. Lee;S. Lee;M. Leitch;M. Leite;M. Leitgab;E. Leitner;B. Lenzi;B. Lewis;N. Lewis;X. Li;P. Lichtenwalner;P. Liebing;S. Lim;L. Levy;T. Livska;A. Litvinenko;H. Liu;M. Liu;S. Lokos;B. Love;R. Luechtenborg;D. Lynch;C. Maguire;T. Majoros;Y. Makdisi;M. Makek;A. Malakhov;M. Malik;A. Manion;V. Manko;E. Mannel;Y. Mao;H. Masui;S. Masumoto;F. Matathias;M. McCumber;P. McGaughey;D. Mcglinchey;C. McKinney;N. Means;A. Meles;M. Mendoza;B. Meredith;W. Metzger;Y. Miake;T. Mibe;J. Midori;A. Mignerey;P. Mikevs;K. Miki;A. Milov;D. Mishra;M. Mishra;J. Mitchell;I. Mitrankov;Y. Miyachi;S. Miyasaka;A. Mohanty;S. Mohapatra;H. Moon;T. Moon;Y. Morino;A. Morreale;D. Morrison;S. Morrow;M. Moskowitz;S. Motschwiller;T. Moukhanova;B. Mulilo;T. Murakami;J. Murata;A. Mwai;T. Nagae;S. Nagamiya;J. Nagle;M. Naglis;M. Nagy;I. Nakagawa;Y. Nakamiya;K. Nakamura;T. Nakamura;K. Nakano;S. Nam;C. Nattrass;A. Nederlof;S. Nelson;P. Netrakanti;J. Newby;M. Nguyen;M. Nihashi;T. Niida;R. Nouicer;N. Novitzky;A. Nukariya;A. Nyanin;C. Oakley;H. Obayashi;E. O'brien;S. Oda;C. Ogilvie;M. Oka;K. Okada;Y. Onuki;J. Osborn;A. Oskarsson;M. Ouchida;K. Ozawa;R. Pak;V. Pantuev;V. Papavassiliou;B. Park;I. Park;J. Park;S. Park;S. Park;W. J. Park;S. Pate;L. Patel;M. Patel;H. Pei;J. Peng;W. Peng;H. Pereira;D. Perepelitsa;V. Peresedov;D. Peressounko;C. PerezLara;R. Petti;C. Pinkenburg;R. Pisani;M. Proissl;A. Pun;M. Purschke;A. Purwar;H. Qu;P. Radzevich;J. Rak;A. Rakotozafindrabe;N. Ramasubramanian;I. Ravinovich;K. Read;S. Rembeczki;K. Reygers;D. Reynolds;V. Riabov;Y. Riabov;E. Richardson;D. Richford;T. Rinn;N. Riveli;D. Roach;G. Roche;S. Rolnick;M. Rosati;C. Rosen;S. Rosendahl;P. Rosnet;P. Rukoyatkin;J. Runchey;P. Ruvzivcka;M. Ryu;B. Sahlmueller;N. Saito;T. Sakaguchi;K. Sakashita;H. Sako;V. Samsonov;M. Sano;S. Sano;M. Sarsour;S. Sato;T. Sato;S. Sawada;K. Sedgwick;J. Seele;R. Seidl;A. Semenov;A. Sen;R. Seto;P. Sett;D. Sharma;I. Shein;T. Shibata;K. Shigaki;M. Shimomura;K. Shoji;P. Shukla;A. Sickles;C. Silva;D. Silvermyr;C. Silvestre;K. S. Sim;B. Singh;C. P. Singh;V. Singh;M. Skolnik;M. Slunevcka;K. Smith;S. Solano;R. Soltz;W. Sondheim;S. Sorensen;I. Sourikova;N. A. Sparks;P. Stankus;P. Steinberg;E. Stenlund;M. Stepanov;A. Ster;S. Stoll;T. Sugitate;A. Sukhanov;J. Sun;X. Sun;Z. Sun;J. Sziklai;E. M. Takagui;A. Takahara;A. Taketani;R. Tanabe;Y. Tanaka;S. Taneja;K. Tanida;M. Tannenbaum;S. Tarafdar;A. Taranenko;P. Tarjan;E. Tennant;H. Themann;D. Thomas;T. Thomas;T. Todoroki;M. Togawa;A. Toia;L. Tom'avsek;M. Tom'avsek;H. Torii;R. Towell;I. Tserruya;Y. Tsuchimoto;T. Tsuji;Y. Ueda;B. Ujvari;C. Vale;H. Valle;H. W. Hecke;M. Vargyas;E. Vazquez-Zambrano;A. Veicht;J. Velkovska;R. Vértesi;A. Vinogradov;M. Virius;B. Voas;A. Vossen;V. Vrba;E. Vznuzdaev;X. Wang;D. Watanabe;K. Watanabe;Y. Watanabe;Y. Watanabe;F. Wei;R. Wei;J. Wessels;S. Whitaker;S. White;D. Winter;S. Wolin;C. Wong;J. Wood;C. Woody;R. M. Wright;Y. Wu;M. Wysocki;B. Xia;W. Xie;Q. Xu;Y. Yamaguchi;K. Yamaura;R. Yang;A. Yanovich;J. Ying;S. Yokkaichi;I. Yoon;Z. You;G. Young;I. Younus;I. Yushmanov;W. Zajc;A. Zelenski;Y. Zhai;C. Zhang;S. Zharko;S. Zhou;L. Zolin;L. Zou