arXiv: High Energy Physics - Phenomenology最新文献_第8页

Higher order conserved charge fluctuations inside the mixed phase 混合相内的高阶守恒电荷波动

arXiv: High Energy Physics - Phenomenology Pub Date : 2020-11-12 DOI: 10.1103/PHYSREVC.103.024912

R. Poberezhnyuk, O. Savchuk, M. Gorenstein, V. Vovchenko, H. Stoecker

引用次数: 2

arXiv: High Energy Physics - Phenomenology Pub Date : 2020-11-11 DOI: 10.1103/PHYSREVD.103.063025

M. Hertzberg, Sami Nurmi, E. D. Schiappacasse, T. Yanagida

{"title":"Shining primordial black holes","authors":"M. Hertzberg, Sami Nurmi, E. D. Schiappacasse, T. Yanagida","doi":"10.1103/PHYSREVD.103.063025","DOIUrl":"https://doi.org/10.1103/PHYSREVD.103.063025","url":null,"abstract":"We study the well-motivated mixed dark matter (DM) scenario composed of a dominant thermal WIMP, highlighting the case of $SU(2)_L$ triplet fermion \"winos\", with a small fraction of primordial black holes (PBHs). After the wino kinetic decoupling, the DM particles are captured by PBHs leading to the presence of PBHs with dark minihalos in the Milky Way today. The strongest constraints for the wino DM come from the production of narrow line gamma rays from wino annihilation in the Galactic Center. We analyse in detail the viability of the mixed wino DM scenario, and determine the constraints on the fraction of DM in PBHs assuming a cored halo profile in the Milky Way. We show that already with the sensitivity of current indirect searches, there is a significant probability for detecting a gamma ray signal characteristic for the wino annihilation in a single nearby dressed PBH when $M_{text{PBH}} sim M_{odot}$, which we refer to as a \"shining black hole\". Similar results should apply also in more general setups with ultracompact minihalos or other DM models, since the accretion of DM around large overdensities and DM annihilation are both quite generic processes.","PeriodicalId":8457,"journal":{"name":"arXiv: High Energy Physics - Phenomenology","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72727813","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: 13

An Approach of Statistical Corrections to Interactions in Hadron Resonance Gas 强子共振气体相互作用的统计修正方法

arXiv: High Energy Physics - Phenomenology Pub Date : 2020-11-10 DOI: 10.1155/2021/6660872

M. Hanafy, Muhammad Maher

{"title":"An Approach of Statistical Corrections to Interactions in Hadron Resonance Gas","authors":"M. Hanafy, Muhammad Maher","doi":"10.1155/2021/6660872","DOIUrl":"https://doi.org/10.1155/2021/6660872","url":null,"abstract":"We propose a new model for hadrons with quantum mechanical attractive and repulsive interactions sensitive to some spatial correlation length parameter inspired by Beth-Uhlenbeck quantum mechanical non-ideal gas model cite{uhlenbeck1937quantum}. We confront the thermodynamics calculated using our model with a corresponding recent lattice data at four different values of the baryon chemical potential, $mu_{mathtt{b}}= 0, 170, 340, 425~$MeV over temperatures ranging from $130$ MeV to $200~$MeV and for five values for the correlation length ranging from $0$ to $0.2~$fm. For equilibrium temperatures up to the vicinity of the chiral phase transition temperature $simeq 160~$MeV, a decent fitting between the model and the lattice data is observed for different values of $r$, especially at $(mu_{mathtt{b}}, r) = (170,0.05), (340,0.1)$, and $(340,0.15)$, where $mu_{mathtt{b}}$ is in MeV and $r$ is in fm. For vanishing chemical potential, the uncorrelated model ($r=0$), which corresponds to ideal hadron resonance gas model seems to offer the best fit. The quantum hadron correlations seem to be more probable at non-vanishing chemical potentials, especially within the range $mu_{mathtt{b}}in [170, 340~$MeV$]$.","PeriodicalId":8457,"journal":{"name":"arXiv: High Energy Physics - Phenomenology","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74373550","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: 1

Mixing and CP Violation in the Charm System 魅力体系中的混合与CP违反

arXiv: High Energy Physics - Phenomenology Pub Date : 2020-11-09 DOI: 10.1146/annurev-nucl-102419-124613

A. Lenz, G. Wilkinson

引用次数: 21

Non-global logarithms in hadron collisions at N = 3 N下强子碰撞的非全局对数 =

arXiv: High Energy Physics - Phenomenology Pub Date : 2020-11-09 DOI: 10.1016/j.nuclphysb.2020.115273

Y. Hatta, Takahiro Ueda

引用次数: 2

Magnetic field dependence of the neutral pion mass in the linear sigma model with quarks: The strong field case 夸克线性西格玛模型中中性介子质量对磁场的依赖:强场情况

arXiv: High Energy Physics - Phenomenology Pub Date : 2020-11-07 DOI: 10.1103/PHYSREVD.103.054038

A. Ayala, J. Hern'andez, L. Hern'andez, R. Farias, R. Zamora

引用次数: 7

Improved sensitivity of interferometric gravitational-wave detectors to ultralight vector dark matter from the finite light-traveling time 提高干涉引力波探测器在有限光行时间内对超光矢量暗物质的灵敏度

arXiv: High Energy Physics - Phenomenology Pub Date : 2020-11-06 DOI: 10.1103/PHYSREVD.103.L051702

S. Morisaki, Tomohiro Fujita, Y. Michimura, Hiromasa Nakatsuka, Ippei Obata

{"title":"Improved sensitivity of interferometric gravitational-wave detectors to ultralight vector dark matter from the finite light-traveling time","authors":"S. Morisaki, Tomohiro Fujita, Y. Michimura, Hiromasa Nakatsuka, Ippei Obata","doi":"10.1103/PHYSREVD.103.L051702","DOIUrl":"https://doi.org/10.1103/PHYSREVD.103.L051702","url":null,"abstract":"Recently several studies have pointed out that gravitational-wave detectors are sensitive to ultralight vector dark matter and can improve the current best constraints given by the Equivalence Principle tests. While a gravitational-wave detector is a highly precise measuring tool of the length difference of its arms, its sensitivity is limited because the displacements of its test mass mirrors caused by vector dark matter are almost common. In this Letter we point out that the sensitivity is significantly improved if the effect of finite light-traveling time in the detector's arms is taken into account. This effect enables advanced LIGO to improve the constraints on the $U(1)_{B-L}$ gauge coupling by an order of magnitude compared with the current best constraints. It also makes the sensitivities of the future gravitational-wave detectors overwhelmingly better than the current ones. The factor by which the constraints are improved due to the new effect depends on the mass of the vector dark matter, and the maximum improvement factors are $470$, $880$, $1600$, $180$ and $1400$ for advanced LIGO, Einstein Telescope, Cosmic Explorer, DECIGO and LISA respectively. Including the new effect, we update the constraints given by the first observing run of advanced LIGO and improve the constraints on the $U(1)_B$ gauge coupling by an order of magnitude compared with the current best constraints.","PeriodicalId":8457,"journal":{"name":"arXiv: High Energy Physics - Phenomenology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78315538","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: 13

New searches at reactor experiments based on the dark axion portal 基于暗轴子入口的反应堆实验的新搜索

arXiv: High Energy Physics - Phenomenology Pub Date : 2020-11-06 DOI: 10.1103/PHYSREVD.103.075006

P. deNiverville, Hye-Sung Lee, Young-Min Lee

引用次数: 10

Fermion masses and mixing from the double cover and metaplectic cover of the A5 modular group 费米子质量和混合来自A5模群的双盖和超塑盖

arXiv: High Energy Physics - Phenomenology Pub Date : 2020-11-06 DOI: 10.1103/PhysRevD.103.095013

Chang-Yuan Yao, Xiang-Gan Liu, Gui-Jun Ding

{"title":"Fermion masses and mixing from the double cover and metaplectic cover of the \u0000A5\u0000 modular group","authors":"Chang-Yuan Yao, Xiang-Gan Liu, Gui-Jun Ding","doi":"10.1103/PhysRevD.103.095013","DOIUrl":"https://doi.org/10.1103/PhysRevD.103.095013","url":null,"abstract":"We perform a comprehensive study of the homogeneous finite modular group $A'_5$ which is the double covering of $A_5$. The integral weight and level 5 modular forms have been constructed up to weight 6 and they are decomposed into the irreducible representations of $A'_5$. Then we perform a systematical analysis of the $A'_5$ modular models for lepton masses and mixing. The phenomenologically viable models with minimal number of free parameters and the results of fit are presented. We find out 8 models with 9 real free parameters which can accommodate the experimental data of lepton sector. After including generalized CP symmetry, 4 viable models with 7 free parameters are found out. We apply $A'_5$ modular symmetry to the quark sector, and a quark-lepton unification model is given. The framework of modular invariance is extended to include the rational weight modular forms of level 5. The ring of modular forms at level 5 can be generated by two algebraically independent weight $1/5$ modular forms denoted by $F_1(tau)$ and $F_2(tau)$. We give the expressions of the rational weight modular forms of level 5 up to weight $3$ and arrange them into the irreducible multiplets of finite metaplectic group $widetilde{Gamma}_5cong A'_5times Z_5$. A neutrino mass model with $widetilde{Gamma}_5$ modular symmetry is presented, and the phenomenological predictions of the model are analyzed numerically.","PeriodicalId":8457,"journal":{"name":"arXiv: High Energy Physics - Phenomenology","volume":"86 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73171358","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: 39

Quantum kinetic theory for spin-1/2 fermions in Wigner function formalism 维格纳函数形式中自旋1/2费米子的量子动力学理论

arXiv: High Energy Physics - Phenomenology Pub Date : 2020-11-05 DOI: 10.1142/S0217751X21300015

Jian-hua Gao, Z. Liang, Qun Wang

引用次数: 9