Intersections of String Phenomenology, Cosmology, and Astrophysics

弦现象学、宇宙学和天体物理学的交叉点

• 批准号: 2112527
• 负责人: Luis Anchordoqui
• 金额: $ 23.4万
• 依托单位: Research Foundation Of The City University Of New York (Lehman)
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2112527&HistoricalAwards=false
• 关键词: Intersections; String; Phenomenology; Cosmology; Astrophysics

This award funds the research of Professor Luis Anchordoqui at CUNY Lehman College.High energy physics is in a state of flux. Data from underground particle colliders, from astrophysics, and from cosmology are together allowing physicists to determine with unprecedented accuracy the values of the many parameters that describe our universe. The values of these parameters are turning out to be the keys to unlocking fundamental secrets concerning the evolution of the universe. One of the most prominent parameters describing the universe is the so-called Hubble parameter H0, which quantifies how rapidly the universe is expanding. Unfortunately, recent improved measurements of this quantity have led to a mystery, with the apparent value of H0 depending on how it is measured. Physicists using the Planck satellite to study the light from the "early" universe (only about 380,000 years after the big bang) obtain one value, while physicists analyzing astronomical observations from stars and galaxies in the "late" universe obtain a different value. The discrepancy between these two values of H0 is called the "Hubble tension". The resolution of this conundrum will likely require a coordinated effort involving theory, interpretation, data analysis, and observation. In this dynamic environment, Professor Anchordoqui will study methods that can help address the H0 tension while at the same time providing solid predictions for data from underground colliders. Research in this area thus advances the national interest by promoting the progress of fundamental science. Professor Anchordoqui will also involve students in his research, thereby helping to train the next generation of scientists.More technically, Professor Anchordoqui will pursue a number of different approaches to addressing the Hubble tension. These include theoretical modeling of time dependent stringy backgrounds with potential cosmological implications for the Hubble tension; statistical analyses using Monte Carlo Markov Chain methods to constrain cosmological parameters which arise in string-inspired models as well as in explicit realizations of the Dynamical Dark Matter framework; theoretical and empirical modeling of inflation dynamics with potentials exhibiting S-duality; and interpreting the tension of astrophysical measurements by IceCube and the Fermi satellite using flavors of cosmological neutrinos with active-sterile mixing. Professor Anchordoqui is also involved with the Pierre Auger Collaboration, searching for the origin and nature of the highest-energy cosmic rays and studying particle interactions at center-of-mass energies well beyond those attained at the LHC.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.

该奖项资助了纽约市立大学雷曼学院路易斯·安克雷多基教授的研究。高能物理学处于不断变化的状态。来自地下粒子对撞机、天体物理学和宇宙学的数据使物理学家能够以前所未有的精度确定描述我们宇宙的许多参数的值。这些参数的值被证明是解开关于宇宙演化的基本秘密的关键。描述宇宙最重要的参数之一是所谓的哈勃参数H0，它量化了宇宙膨胀的速度。不幸的是，最近对这个量的改进测量导致了一个谜，H0的表观值取决于它是如何测量的。物理学家利用普朗克卫星研究“早期”宇宙（大爆炸后约38万年）的光，得到一个值，而物理学家分析“晚期”宇宙中恒星和星系的天文观测，得到一个不同的值。这两个H0值之间的差异被称为“哈勃张力”。解决这一难题可能需要理论、解释、数据分析和观察方面的协调努力。在这种动态环境中，安克雷多基教授将研究有助于解决H0张力的方法，同时为地下对撞机的数据提供可靠的预测。因此，该领域的研究通过促进基础科学的进步来促进国家利益。安克雷多基教授还将让学生参与他的研究，从而帮助培养下一代科学家。从技术上讲，安克雷多基教授将采用多种不同的方法来解决哈勃望远镜带来的紧张关系。其中包括对时间相关的弦背景的理论建模，这些背景对哈勃张力具有潜在的宇宙学意义；使用蒙特卡洛马尔可夫链方法进行统计分析，以约束弦启发模型以及动态暗物质框架的明确实现中出现的宇宙学参数；具有s -对偶势的暴胀动力学的理论和实证建模；并解释冰立方和费米卫星测量的天体物理张力，使用活性无菌混合的宇宙中微子。安克雷多基教授还参与了皮埃尔·奥格合作项目，寻找最高能量宇宙射线的起源和本质，并研究质心能量处的粒子相互作用，这些能量远远超出了大型强子对撞机所能达到的水平。该奖项反映了美国国家科学基金会的法定使命，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

Indirect dark matter searches at ultrahigh energy neutrino detectors

• DOI: 10.1103/physrevd.104.083002
• 发表时间: 2021-06
• 期刊: Physical Review D
• 影响因子: 5
• 作者: C. Guépin;R. Aloisio;A. Cummings;L. Anchordoqui;J. Krizmanic;A. Olinto;M. Reno;T. Venters

An explanation of the muon puzzle of ultrahigh-energy cosmic rays and the role of the Forward Physics Facility for model improvement

• DOI: 10.1016/j.jheap.2022.03.004
• 发表时间: 2022-02
• 期刊: Journal of High Energy Astrophysics
• 影响因子: 3.8
• 作者: L. Anchordoqui;C. Canal;F. Kling;S. Sciutto;J. F. Soriano

Dark dimension, the swampland, and the origin of cosmic rays beyond the Greisen-Zatsepin-Kuzmin barrier

• DOI: 10.1103/physrevd.106.116022
• 发表时间: 2022-05
• 期刊: Physical Review D
• 影响因子: 5
• 作者: L. Anchordoqui

Addendum to “Leptophilic U(1) massive vector bosons from large extra dimensions: Reexamination of constraints from LEP data” [Phys. Lett. B 820 (2021) 136585]

“来自大额外维度的亲Leptophilic U(1) 大规模矢量玻色子的附录：重新检查 LEP 数据的约束”[Phys.

• DOI: 10.1016/j.physletb.2022.137014
• 发表时间: 2022
• 期刊: Physics Letters B
• 影响因子: 4.4
• 作者: Anchordoqui, Luis A.;Antoniadis, Ignatios;Huang, Xing;Lüst, Dieter;Rondeau, François;Taylor, Tomasz R.
• 通讯作者: Taylor, Tomasz R.

The Forward Physics Facility at the High-Luminosity LHC

• DOI: 10.1088/1361-6471/ac865e
• 发表时间: 2022-03
• 期刊: Journal of Physics G: Nuclear and Particle Physics
• 作者: Jonathan L. Feng;F. Kling;M. Reno;J. Rojo;D. Soldin;L. Anchordoqui;J. Boyd;A. Ismail;L. Harland–La