Physical Review D最新文献_第10页

Photoproduction of ηcγ pairs in the CGC framework

IF 5 2区物理与天体物理

Physical Review D Pub Date : 2025-03-21 DOI: 10.1103/physrevd.111.056024

M. Siddikov, I. Zemlyakov, M. Roa, S. Valdebenito

{"title":"Photoproduction of ηcγ pairs in the CGC framework","authors":"M. Siddikov, I. Zemlyakov, M. Roa, S. Valdebenito","doi":"10.1103/physrevd.111.056024","DOIUrl":"https://doi.org/10.1103/physrevd.111.056024","url":null,"abstract":"In this paper we analyzed the exclusive photoproduction of η</a:mi>c</a:mi></a:msub>γ</a:mi></a:math> pairs in the color glass condensate framework. We found that the cross section of this process is sensitive only to the forward dipole scattering amplitude, and thus could be used as a new tool for analysis of this fundamental nonperturbative object. Using the phenomenological parametrizations of this object, we estimated numerically the production cross section and counting rates in the kinematics of the ongoing and forthcoming experiments at LHC and future Electron Ion Collider. We found that the cross section is sufficiently large for dedicated experimental study. We also estimated the role of this process as a potential background to <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:msub><c:mi>η</c:mi><c:mi>c</c:mi></c:msub></c:math> photoproduction, which is conventionally considered as a gateway for studies of odderons. We found that the contribution of <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:msub><e:mi>η</e:mi><e:mi>c</e:mi></e:msub><e:mi>γ</e:mi></e:math> (with undetected photon) is on par with expected contributions of odderons in the kinematics of small momentum transfer <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mo stretchy=\"false\">|</g:mo><g:mi>t</g:mi><g:mo stretchy=\"false\">|</g:mo><g:mo>≲</g:mo><g:mn>1</g:mn><g:mtext> </g:mtext><g:mtext> </g:mtext><g:msup><g:mrow><g:mi>GeV</g:mi></g:mrow><g:mrow><g:mn>2</g:mn></g:mrow></g:msup></g:math>, though decreases rapidly at larger <k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:mo stretchy=\"false\">|</k:mo><k:mi>t</k:mi><k:mo stretchy=\"false\">|</k:mo></k:math>. Finally, we also calculated the feeddown contribution (from radiative decays of other charmonia) and found that a sizable correction comes from <o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><o:mi>J</o:mi><o:mo>/</o:mo><o:mi>ψ</o:mi><o:mo stretchy=\"false\">→</o:mo><o:msub><o:mi>η</o:mi><o:mi>c</o:mi></o:msub><o:mi>γ</o:mi></o:math> decays. This contribution remains pronounced even at relatively large <r:math xmlns:r=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><r:mo stretchy=\"false\">|</r:mo><r:mi>t</r:mi><r:mo stretchy=\"false\">|</r:mo></r:math> and potentially can impose constraint on detectability of odderons via <v:math xmlns:v=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><v:msub><v:mi>η</v:mi><v:mi>c</v:mi></v:msub></v:math> photoproduction. Published by the American Physical Society 2025 ","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"56 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sensitivity study of a sapphire detector using coherent elastic neutrino-nucleus scattering processes 利用相干弹性中子-核散射过程对蓝宝石探测器进行灵敏度研究

IF 5 2区物理与天体物理

Physical Review D Pub Date : 2025-03-21 DOI: 10.1103/physrevd.111.053007

S. P. Behera

{"title":"Sensitivity study of a sapphire detector using coherent elastic neutrino-nucleus scattering processes","authors":"S. P. Behera","doi":"10.1103/physrevd.111.053007","DOIUrl":"https://doi.org/10.1103/physrevd.111.053007","url":null,"abstract":"The Indian Coherent Neutrino-nucleus Scattering Experiment (ICNSE) has been proposed at Bhabha Atomic Research Centre in India to measure the coherent elastic neutrino-nucleus scattering process using electron antineutrinos produced from reactors. Phenomenological studies are performed to find out the sensitivity of a sapphire detector for various fundamental physics parameters at an exposure of one year. Reactors of different core compositions, sizes, and thermal powers have been considered as sources of electron antineutrinos. The potential of the ICNSE to measure the weak mixing angle at a low energy regime has been extracted. Furthermore, the detector’s capability has been investigated for examining the electromagnetic properties of neutrinos, including their magnetic moment. Additionally, an exploration has been conducted on the detector’s sensitivity in restricting new interactions between neutrinos and electrons or nuclei, thereby constraining the parameter space related to light mediators. It is found that the ICNSE detector can put a stronger constraints on the scalar and vector mediators masses. Published by the American Physical Society 2025 ","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"93 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Probing long-range forces between neutrinos with cosmic structures 用宇宙结构探测中微子之间的长程作用力

IF 5 2区物理与天体物理

Physical Review D Pub Date : 2025-03-21 DOI: 10.1103/physrevd.111.055019

David E. Kaplan, Xuheng Luo, Surjeet Rajendran

引用次数: 0

Implications on the CP violation of charmless three body decays of bottom baryons from a U -spin analysis 从 U - 自旋分析看底重子无魅力三体衰变的 CP 违约问题

IF 5 2区物理与天体物理

Physical Review D Pub Date : 2025-03-21 DOI: 10.1103/physrevd.111.053006

Wei Wang, Zhi-Peng Xing, Zhen-Xing Zhao

{"title":"Implications on the CP violation of charmless three body decays of bottom baryons from a U -spin analysis","authors":"Wei Wang, Zhi-Peng Xing, Zhen-Xing Zhao","doi":"10.1103/physrevd.111.053006","DOIUrl":"https://doi.org/10.1103/physrevd.111.053006","url":null,"abstract":"Motivated by recent LHCb measurements of C</a:mi>P</a:mi></a:math> violation in <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:msub><c:mi mathvariant=\"normal\">Λ</c:mi><c:mi>b</c:mi></c:msub></c:math> three body decays, we conduct an analysis of <f:math xmlns:f=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><f:mi>C</f:mi><f:mi>P</f:mi></f:math> asymmetry in three body decays of bottom baryons utilizing <h:math xmlns:h=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><h:mi>U</h:mi></h:math>-spin symmetry. We first develop a convenient representation that facilitates the incorporation of <j:math xmlns:j=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><j:mi>U</j:mi></j:math>-spin symmetry into our analysis. By integrating weak and strong phases into the derived amplitude, we obtain the <l:math xmlns:l=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><l:mi>C</l:mi><l:mi>P</l:mi></l:math> asymmetry and establish relationships between <n:math xmlns:n=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><n:mi>C</n:mi><n:mi>P</n:mi></n:math> asymmetries in <p:math xmlns:p=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><p:mi>U</p:mi></p:math>-spin related decay channels. With the help of experimental measurements, we provide numerical predictions for the <r:math xmlns:r=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><r:mi>C</r:mi><r:mi>P</r:mi></r:math> asymmetries for other decay channels, particularly <t:math xmlns:t=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><t:msubsup><t:mi mathvariant=\"normal\">Ξ</t:mi><t:mi>b</t:mi><t:mn>0</t:mn></t:msubsup><t:mo stretchy=\"false\">→</t:mo><t:mi mathvariant=\"normal\">Λ</t:mi><t:msup><t:mi>π</t:mi><t:mo>+</t:mo></t:msup><t:msup><t:mi>π</t:mi><t:mo>−</t:mo></t:msup></t:math> under a specific scenario. Furthermore, we provide a quantity that can be used as a null test of the <y:math xmlns:y=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><y:mrow><y:mi>SU</y:mi><y:mo stretchy=\"false\">(</y:mo><y:mn>3</y:mn><y:mo stretchy=\"false\">)</y:mo></y:mrow></y:math> symmetry and standard model. Deviations from zero would indicate potential new physics if they exceed the expected magnitude of <cb:math xmlns:cb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><cb:mrow><cb:mi>SU</cb:mi><cb:mo stretchy=\"false\">(</cb:mo><cb:mn>3</cb:mn><cb:mo stretchy=\"false\">)</cb:mo></cb:mrow></cb:math> breaking effects. These results are valuable for <gb:math xmlns:gb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><gb:mi>C</gb:mi><gb:mi>P</gb:mi></gb:math> violation measurements in baryon decays, and can be tested in future experiments. Published by the American Physical Society 2025 ","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"70 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Neutrino portals to MeV WIMPs with s -channel mediators 利用 s 沟道介质的中微子通向 MeV WIMPs 的门户

IF 5 2区物理与天体物理

Physical Review D Pub Date : 2025-03-21 DOI: 10.1103/physrevd.111.055020

Nicole F. Bell, Matthew J. Dolan, Avirup Ghosh, Michael Virgato

引用次数: 0

Lattice calculation of the π0 , η and η′ transition form factors and the hadronic light-by-light contribution to the muon g−2 π0、η和η′转变形式因子的晶格计算以及对μ介子g-2的强子逐光贡献

IF 5 2区物理与天体物理

Physical Review D Pub Date : 2025-03-21 DOI: 10.1103/physrevd.111.054511

Antoine Gérardin, Willem E. A. Verplanke, Gen Wang, Zoltan Fodor, Jana N. Guenther, Laurent Lellouch, Kalman K. Szabo, Lukas Varnhorst

{"title":"Lattice calculation of the π0 , η and η′ transition form factors and the hadronic light-by-light contribution to the muon g−2","authors":"Antoine Gérardin, Willem E. A. Verplanke, Gen Wang, Zoltan Fodor, Jana N. Guenther, Laurent Lellouch, Kalman K. Szabo, Lukas Varnhorst","doi":"10.1103/physrevd.111.054511","DOIUrl":"https://doi.org/10.1103/physrevd.111.054511","url":null,"abstract":"In this paper we present a first calculation of the π</a:mi>0</a:mn></a:msup></a:math>, <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mi>η</c:mi></c:math> and <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:msup><e:mi>η</e:mi><e:mo>′</e:mo></e:msup></e:math> transition form factors performed with physical light-quark masses. We provide a complete parametrization of the form factors that includes both single and double-virtual kinematics. Our results are compared with experimental measurements of the form factors in the spacelike region and with the measured two-photon decay widths. In a second step, our parametrizations of the transition form factors are used to compute the dominant pseudoscalar-pole contributions to the hadronic light-by-light scattering in the muon <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mi>g</g:mi><g:mo>−</g:mo><g:mn>2</g:mn></g:math>. Our final result reads <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:mrow><i:msubsup><i:mrow><i:mi>a</i:mi></i:mrow><i:mrow><i:mi>μ</i:mi></i:mrow><i:mrow><i:mi>hlbl</i:mi><i:mo>,</i:mo><i:mtext>ps-pole</i:mtext></i:mrow></i:msubsup><i:mo>=</i:mo><i:mo stretchy=\"false\">(</i:mo><i:mn>85.1</i:mn><i:mo>±</i:mo><i:mn>5.2</i:mn><i:mo stretchy=\"false\">)</i:mo><i:mo>×</i:mo><i:msup><i:mrow><i:mn>10</i:mn></i:mrow><i:mrow><i:mo>−</i:mo><i:mn>11</i:mn></i:mrow></i:msup></i:mrow></i:math>. Although the pion-pole is dominant, we confirm that, together, the <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:mi>η</m:mi></m:math> and <o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><o:msup><o:mi>η</o:mi><o:mo>′</o:mo></o:msup></o:math> provide roughly half of its contribution. Published by the American Physical Society 2025 ","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"23 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reevaluating the ψ(4160) resonance parameter using B+→K+μ+μ− data in the context of unquenched charmonium spectroscopy

IF 5 2区物理与天体物理

Physical Review D Pub Date : 2025-03-21 DOI: 10.1103/physrevd.111.054023

Tian-Cai Peng, Zi-Yue Bai, Jun-Zhang Wang, Xiang Liu

引用次数: 0

Nonplanar four-loop anomalous dimensions of twist-two operators in N=4 supersymmetric Yang-Mills theory: Higher moment, general result, and cusp anomalous dimension N=4超对称杨-米尔斯理论中扭转二算子的非平面四环反常维度：高矩、一般结果和尖点反常维度

IF 5 2区物理与天体物理

Physical Review D Pub Date : 2025-03-21 DOI: 10.1103/physrevd.111.l061902

B. A. Kniehl, V. N. Velizhanin

{"title":"Nonplanar four-loop anomalous dimensions of twist-two operators in N=4 supersymmetric Yang-Mills theory: Higher moment, general result, and cusp anomalous dimension","authors":"B. A. Kniehl, V. N. Velizhanin","doi":"10.1103/physrevd.111.l061902","DOIUrl":"https://doi.org/10.1103/physrevd.111.l061902","url":null,"abstract":"We consider the nonplanar universal anomalous dimension of twist-two operators at four loops in N</a:mi>=</a:mo>4</a:mn></a:mrow></a:math> supersymmetric Yang-Mills theory and push its direct diagrammatic calculation through Lorentz spin <d:math xmlns:d=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><d:mi>j</d:mi><d:mo>=</d:mo><d:mn>20</d:mn></d:math>, one unit beyond the state of the art, so as to confirm the correctness of the general, all-<f:math xmlns:f=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><f:mi>j</f:mi></f:math> result conjectured previously by us [Non-planar universal anomalous dimension of twist-two operators with general Lorentz spin at four loops in <h:math xmlns:h=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><h:mi mathvariant=\"script\">N</h:mi><h:mo>=</h:mo><h:mn>4</h:mn></h:math> SYM theory, .] imposing certain constraints on its analytic form. Thanks to our new result, such constraints can be eliminated altogether. By the same token, this allows us to rederive, in a completely independent way, the nonplanar four-loop cusp anomalous dimension by taking the large-<k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:mi>j</k:mi></k:math> limit of the general result. Published by the American Physical Society 2025 ","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"22 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coherent states in gauge theories: Topological defects and other classical configurations

IF 5 2区物理与天体物理

Physical Review D Pub Date : 2025-03-20 DOI: 10.1103/physrevd.111.065018

Lasha Berezhiani, Gia Dvali, Otari Sakhelashvili

{"title":"Coherent states in gauge theories: Topological defects and other classical configurations","authors":"Lasha Berezhiani, Gia Dvali, Otari Sakhelashvili","doi":"10.1103/physrevd.111.065018","DOIUrl":"https://doi.org/10.1103/physrevd.111.065018","url":null,"abstract":"We present a formulation of coherent states as of consistent quantum description of classical configurations in the Becchi-Rouet-Stora-Tyutin (BRST)-invariant quantization of electrodynamics. The quantization with proper gauge-fixing is performed on the vacuum of the theory, whereas other backgrounds are obtained as BRST-invariant coherent states. One of the key insights is the possibility of constructing the coherent states of pure-gauge configurations. This provides a coherent state understanding of topologically nontrivial configurations in gauge theories and makes a number of features, such as the suppression of transitions between topologically distinct sectors, very transparent at full quantum level. As an example, we construct the Nielsen-Olesen string as a BRST-invariant coherent state. The Abelian pure-gauge configurations can also be viewed as useful analogs for a set of space-times related by coordinate reparametrizations in general relativity. Published by the American Physical Society 2025 ","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"45 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

String junctions in flag manifold sigma models

IF 5 2区物理与天体物理

Physical Review D Pub Date : 2025-03-20 DOI: 10.1103/physrevd.111.065020

Yuki Amari, Toshiaki Fujimori, Muneto Nitta, Keisuke Ohashi

引用次数: 0