arXiv - PHYS - High Energy Physics - Phenomenology最新文献_第9页

Towards NNLO QCD corrections to Higgs boson pair production 走向 NNLO QCD 对希格斯玻色子成对产生的修正

arXiv - PHYS - High Energy Physics - Phenomenology Pub Date : 2024-09-11 DOI: arxiv-2409.07573

Matthias Steinhauser

引用次数: 0

Anomalous Ionization in the Central Molecular Zone by sub-GeV Dark Matter 亚GeV暗物质在中央分子区的反常电离作用

arXiv - PHYS - High Energy Physics - Phenomenology Pub Date : 2024-09-11 DOI: arxiv-2409.07515

Pedro De la Torre Luque, Shyam Balaji, Joseph Silk

引用次数: 0

Finite Energy Resolution, Correlations Between Bins and Non-Nested Hypotheses 有限能量分辨率、箱间相关性和非嵌套假设

arXiv - PHYS - High Energy Physics - Phenomenology Pub Date : 2024-09-11 DOI: arxiv-2409.07157

Emilio Ciuffoli, Jarah Evslin

{"title":"Finite Energy Resolution, Correlations Between Bins and Non-Nested Hypotheses","authors":"Emilio Ciuffoli, Jarah Evslin","doi":"arxiv-2409.07157","DOIUrl":"https://doi.org/arxiv-2409.07157","url":null,"abstract":"We show that whenever independent events are binned, there is no correlation\u0000between bins. In particular, neither the uncertainty in the energy resolution\u0000nor a systematic error in the energy response of a detector will lead to a\u0000correlation between bins. This is in contrast with a result that recently\u0000appeared in the literature, where it was claimed that the finite energy\u0000resolution could induce correlation between bins, changing the distribution of\u0000$Deltachi^2$ when attempting to determine the neutrino mass ordering using\u0000reactor neutrinos. We will compute the expression for the variance of\u0000$Deltachi^2$ in the case of non-nested hypotheses if correlations between\u0000bins are present, showing that they could indeed affect the distribution. We\u0000will also show, however, that the detector response cannot introduce\u0000statistical correlations between bins unless these are already present in the\u0000original spectrum. Both of these results are valid in general: the absence of\u0000correlation is true for any detector response and the distribution of\u0000$Deltachi^2$ in the presence of (intrinsic) correlations, while obtained\u0000having the mass ordering in mind, it is true for any non-nested hypotheses.","PeriodicalId":501067,"journal":{"name":"arXiv - PHYS - High Energy Physics - Phenomenology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178504","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

Possibility of the experimental study on semi-leptonic and non-leptonic $D^*_{(s)}$ weak decays 对半轻子和非轻子 $D^*_{(s)}$ 弱衰变进行实验研究的可能性

arXiv - PHYS - High Energy Physics - Phenomenology Pub Date : 2024-09-11 DOI: arxiv-2409.07302

Hao Yang, Zhi-Qing Zhang, Peng Li, You-Ya Yang

{"title":"Possibility of the experimental study on semi-leptonic and non-leptonic $D^*_{(s)}$ weak decays","authors":"Hao Yang, Zhi-Qing Zhang, Peng Li, You-Ya Yang","doi":"arxiv-2409.07302","DOIUrl":"https://doi.org/arxiv-2409.07302","url":null,"abstract":"Just like other heavy flavor mesons, the weak decays of $D^*_{(s)}$ mesons\u0000can also provide a platform to check the Standard Model (SM), explore new\u0000physics (NP) and understand the mechanisms of weak interactions. At present,\u0000the theoretical and experimental researches on $D^*_{(s)}$ mesons are\u0000relatively limited. In addition to the dominant electromagnetic decays, the\u0000$D^*_{(s)}$ weak decays should also be feasible to explore the $D^*_{(s)}$\u0000mesons. In this paper, we use the covariant light-front quark model (CLFQM) to\u0000study the branching ratios of the semi-leptonic decays $D^*_{(s)}to\u0000Pell^{+}nu_{ell}$ and the non-leptonic decays $D^*_{(s)}to PP, PV$ with\u0000$P=pi, K, eta^{(prime)}, V=rho, K^*, phi$ and $ell=e, mu$, which are\u0000within the range $10^{-13}sim 10^{-6}$. Among these decays, the channels\u0000$D_{s}^{*+}toeta ell^{+}nu_{ell}$ and $D^{*+}_{s}to etarho^{+}$ possess\u0000the largest branching ratios, which can reach up to $10^{-6}$ order. These\u0000decays are most likely to be accessible at the future high-luminosity\u0000experiments. One can find that the branching ratios\u0000$mathcal{B}r(D_{s}^{*+}toeta ell^{+}nu_{ell})=1.46times10^{-6}$ and\u0000$mathcal{B}r(D_{s}^{*+}toeta rho^{+})=1.04times10^{-6}$ correspond to tens\u0000of thousands of events in the $e^+e^-$ collider experiments, such as the STCF,\u0000CEPC and FCC-ee, and tens of millions of events at the HL-LHC. In a word, it is\u0000feasible to study the $D^*_{(s)}$ meson weak decays in the future experiments.\u0000Furthermore, we also predict and discuss another two physical observations,\u0000that is, the longitudinal polarization fraction $f_{L}$ and the\u0000forward-backward asymmetry $A_{FB}$, for our considered decays.","PeriodicalId":501067,"journal":{"name":"arXiv - PHYS - High Energy Physics - Phenomenology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142223501","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

CP violation at finite temperature 有限温度下的 CP 违约

arXiv - PHYS - High Energy Physics - Phenomenology Pub Date : 2024-09-11 DOI: arxiv-2409.07180

Károly Seller, Zsolt Szép, Zoltán Trócsányi

引用次数: 0

Detect anomalous quartic gauge couplings at muon colliders with quantum kernel k-means 在μ介子对撞机上利用量子核K均值检测反常四元规耦合

arXiv - PHYS - High Energy Physics - Phenomenology Pub Date : 2024-09-11 DOI: arxiv-2409.07010

Shuai Zhang, Ke-Xin Chen, Ji-Chong Yang

{"title":"Detect anomalous quartic gauge couplings at muon colliders with quantum kernel k-means","authors":"Shuai Zhang, Ke-Xin Chen, Ji-Chong Yang","doi":"arxiv-2409.07010","DOIUrl":"https://doi.org/arxiv-2409.07010","url":null,"abstract":"In recent years, with the increasing luminosities of colliders, handling the\u0000growing amount of data has become a major challenge for future New Physics~(NP)\u0000phenomenological research. To improve efficiency, machine learning algorithms\u0000have been introduced into the field of high-energy physics. As a machine\u0000learning algorithm, kernel k-means has been demonstrated to be useful for\u0000searching NP signals. It is well known that the kernel k-means algorithm can be\u0000carried out with the help of quantum computing, which suggests that quantum\u0000kernel k-means~(QKKM) is also a potential tool for NP phenomenological studies\u0000in the future. This paper investigates how to search for NP signals using the\u0000k-means anomaly detection event selection strategy with quantum kernels. Taking\u0000the $mu^+mu^-to vbar{v}gammagamma$ process at a muon collider as an\u0000example, the dimension-8 operators contributing to anomalous quartic gauge\u0000couplings~(aQGCs) are studied. The expected coefficient constraints obtained\u0000using the QKKM of three different forms of quantum kernels and k-means\u0000algorithm are presented, it can be shown that QKKM can help to find the signal\u0000of aQGCs.","PeriodicalId":501067,"journal":{"name":"arXiv - PHYS - High Energy Physics - Phenomenology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142223502","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

Wigner rotations for cascade reactions 级联反应的维格纳旋转

arXiv - PHYS - High Energy Physics - Phenomenology Pub Date : 2024-09-10 DOI: arxiv-2409.06913

Kai Habermann, Mikhail Mikhasenko

引用次数: 0

Dual Gravitational Wave Signatures of Instant Preheating 瞬间预热的双重引力波信号

arXiv - PHYS - High Energy Physics - Phenomenology Pub Date : 2024-09-10 DOI: arxiv-2409.06483

Wei-Yu Hu, Kazunori Nakayama, Volodymyr Takhistov, Yong Tang

引用次数: 0

Malaphoric $Z'$ models for $b rightarrow s ell^+ ell^-$ anomalies 用于 $b rightarrow s ell^+ ell^-$ 异常现象的拟合 $Z'$ 模型

arXiv - PHYS - High Energy Physics - Phenomenology Pub Date : 2024-09-10 DOI: arxiv-2409.06804

Ben Allanach, Nico Gubernari

引用次数: 0

Exploring the nature of $Y(4230)$ and $Y(4360)$ in B decays 探索B衰变中$Y(4230)$和$Y(4360)$的性质

arXiv - PHYS - High Energy Physics - Phenomenology Pub Date : 2024-09-10 DOI: arxiv-2409.06539

Ming-Zhu Liu, Qi Wu

引用次数: 0