Pub Date : 2023-12-30DOI: 10.1142/s0217751x23400043
R. N. C. Pfeifer
<p>The CDF II measurement of <span><math altimg="eq-00002.gif" display="inline" overflow="scroll"><mi>W</mi></math></span><span></span> boson mass is at significant (<span><math altimg="eq-00003.gif" display="inline" overflow="scroll"><mn>6</mn><mo>.</mo><mn>9</mn><mspace width=".17em"></mspace><mi>σ</mi></math></span><span></span>) tension with the Standard Model, and moderate (<span><math altimg="eq-00004.gif" display="inline" overflow="scroll"><mn>4</mn><mo>.</mo><mn>0</mn><mspace width=".17em"></mspace><mi>σ</mi></math></span><span></span>) tension with recent results from ATLAS. Any attempt to interpret this as a signature of new physics requires high-precision, robust, falsifiable predictions. The Classical Analogue to the Standard Model In pseudo-Riemannian space–time (CASMIR) is an analogue model predicting <span><math altimg="eq-00005.gif" display="inline" overflow="scroll"><mi>W</mi></math></span><span></span> and <span><math altimg="eq-00006.gif" display="inline" overflow="scroll"><mi>Z</mi></math></span><span></span> boson masses of <span><math altimg="eq-00007.gif" display="inline" overflow="scroll"><mn>8</mn><mn>0</mn><mo>.</mo><mn>3</mn><mn>5</mn><mn>8</mn><mn>7</mn><mo stretchy="false">(</mo><mn>2</mn><mn>2</mn><mo stretchy="false">)</mo><mspace width=".17em"></mspace><mstyle><mtext mathvariant="normal">GeV</mtext></mstyle><mo stretchy="false">/</mo><msup><mrow><mi>c</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span><span></span> and <span><math altimg="eq-00008.gif" display="inline" overflow="scroll"><mn>9</mn><mn>1</mn><mo>.</mo><mn>1</mn><mn>8</mn><mn>7</mn><mn>7</mn><mo stretchy="false">(</mo><mn>3</mn><mn>5</mn><mo stretchy="false">)</mo><mspace width=".17em"></mspace><mstyle><mtext mathvariant="normal">GeV</mtext></mstyle><mo stretchy="false">/</mo><msup><mrow><mi>c</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span><span></span>, respectively. During baryon collisions satisfying <span><math altimg="eq-00009.gif" display="inline" overflow="scroll"><msqrt><mrow><mi>s</mi></mrow></msqrt><mo><</mo><mn>3</mn><mo>.</mo><mn>0</mn><mn>9</mn><mspace width=".17em"></mspace><mstyle><mtext mathvariant="normal">TeV</mtext></mstyle></math></span><span></span>, CASMIR predicts a color-mediated enhancement of <span><math altimg="eq-00010.gif" display="inline" overflow="scroll"><mi>W</mi></math></span><span></span> and <span><math altimg="eq-00011.gif" display="inline" overflow="scroll"><mi>Z</mi></math></span><span></span> boson masses, becoming <span><math altimg="eq-00012.gif" display="inline" overflow="scroll"><mn>8</mn><mn>0</mn><mo>.</mo><mn>4</mn><mn>3</mn><mn>4</mn><mn>0</mn><mo stretchy="false">(</mo><mn>2</mn><mn>2</mn><mo stretchy="false">)</mo><mspace width=".17em"></mspace><mstyle><mtext mathvariant="normal">GeV</mtext></mstyle><mo stretchy="false">/</mo><msup><mrow><mi>c</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span><span></span> and <span><math altimg="eq-00013.gif" display="inline" overflow="scroll"><mn>
W 玻色子质量的 CDF II 测量结果与标准模型存在显著（6.9σ）紧张关系，与 ATLAS 的最新结果存在中等（4.0σ）紧张关系。任何将此解释为新物理学特征的尝试都需要高精度、稳健、可证伪的预测。标准模型在伪黎曼时空的经典模拟（CASMIR）是一个模拟模型，预测 W 和 Z 玻色子的质量分别为 80.3587(22)GeV/c2 和 91.1877(35)GeV/c2 。在满足 s<3.09TeV 的重子对撞中，CASMIR 预测 W 和 Z 玻色子的质量会在颜色介导下增强，分别变为 80.4340(22)GeV/c2 和 91.1922(35)GeV/c2。未增强的质量与在 s=7TeV 收集的 ATLAS 数据一致，增强的质量与在 s=1.96TeV 收集的 CDF II 数据一致。根据CASMIR，大型强子对撞机（LHC）在质量中心能量小于3.09TeV但足够大的情况下运行时，W玻色子的形成应该允许ATLAS复制CDF II的结果。
{"title":"Falsifiable analog model predictions of W mass in CDF II and ATLAS","authors":"R. N. C. Pfeifer","doi":"10.1142/s0217751x23400043","DOIUrl":"https://doi.org/10.1142/s0217751x23400043","url":null,"abstract":"<p>The CDF II measurement of <span><math altimg=\"eq-00002.gif\" display=\"inline\" overflow=\"scroll\"><mi>W</mi></math></span><span></span> boson mass is at significant (<span><math altimg=\"eq-00003.gif\" display=\"inline\" overflow=\"scroll\"><mn>6</mn><mo>.</mo><mn>9</mn><mspace width=\".17em\"></mspace><mi>σ</mi></math></span><span></span>) tension with the Standard Model, and moderate (<span><math altimg=\"eq-00004.gif\" display=\"inline\" overflow=\"scroll\"><mn>4</mn><mo>.</mo><mn>0</mn><mspace width=\".17em\"></mspace><mi>σ</mi></math></span><span></span>) tension with recent results from ATLAS. Any attempt to interpret this as a signature of new physics requires high-precision, robust, falsifiable predictions. The Classical Analogue to the Standard Model In pseudo-Riemannian space–time (CASMIR) is an analogue model predicting <span><math altimg=\"eq-00005.gif\" display=\"inline\" overflow=\"scroll\"><mi>W</mi></math></span><span></span> and <span><math altimg=\"eq-00006.gif\" display=\"inline\" overflow=\"scroll\"><mi>Z</mi></math></span><span></span> boson masses of <span><math altimg=\"eq-00007.gif\" display=\"inline\" overflow=\"scroll\"><mn>8</mn><mn>0</mn><mo>.</mo><mn>3</mn><mn>5</mn><mn>8</mn><mn>7</mn><mo stretchy=\"false\">(</mo><mn>2</mn><mn>2</mn><mo stretchy=\"false\">)</mo><mspace width=\".17em\"></mspace><mstyle><mtext mathvariant=\"normal\">GeV</mtext></mstyle><mo stretchy=\"false\">/</mo><msup><mrow><mi>c</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span><span></span> and <span><math altimg=\"eq-00008.gif\" display=\"inline\" overflow=\"scroll\"><mn>9</mn><mn>1</mn><mo>.</mo><mn>1</mn><mn>8</mn><mn>7</mn><mn>7</mn><mo stretchy=\"false\">(</mo><mn>3</mn><mn>5</mn><mo stretchy=\"false\">)</mo><mspace width=\".17em\"></mspace><mstyle><mtext mathvariant=\"normal\">GeV</mtext></mstyle><mo stretchy=\"false\">/</mo><msup><mrow><mi>c</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span><span></span>, respectively. During baryon collisions satisfying <span><math altimg=\"eq-00009.gif\" display=\"inline\" overflow=\"scroll\"><msqrt><mrow><mi>s</mi></mrow></msqrt><mo><</mo><mn>3</mn><mo>.</mo><mn>0</mn><mn>9</mn><mspace width=\".17em\"></mspace><mstyle><mtext mathvariant=\"normal\">TeV</mtext></mstyle></math></span><span></span>, CASMIR predicts a color-mediated enhancement of <span><math altimg=\"eq-00010.gif\" display=\"inline\" overflow=\"scroll\"><mi>W</mi></math></span><span></span> and <span><math altimg=\"eq-00011.gif\" display=\"inline\" overflow=\"scroll\"><mi>Z</mi></math></span><span></span> boson masses, becoming <span><math altimg=\"eq-00012.gif\" display=\"inline\" overflow=\"scroll\"><mn>8</mn><mn>0</mn><mo>.</mo><mn>4</mn><mn>3</mn><mn>4</mn><mn>0</mn><mo stretchy=\"false\">(</mo><mn>2</mn><mn>2</mn><mo stretchy=\"false\">)</mo><mspace width=\".17em\"></mspace><mstyle><mtext mathvariant=\"normal\">GeV</mtext></mstyle><mo stretchy=\"false\">/</mo><msup><mrow><mi>c</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span><span></span> and <span><math altimg=\"eq-00013.gif\" display=\"inline\" overflow=\"scroll\"><mn>","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":"8 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140129196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Pub Date : 2023-12-15DOI: 10.1142/s0217751x23501786
Faizuddin Ahmed
{"title":"Topological defects on relativistic quantum oscillator in wormhole space-time background","authors":"Faizuddin Ahmed","doi":"10.1142/s0217751x23501786","DOIUrl":"https://doi.org/10.1142/s0217751x23501786","url":null,"abstract":"","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":"9 7","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138996399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Pub Date : 2023-12-15DOI: 10.1142/s0217751x23501798
A. Guvendi, Faizuddin Ahmed
{"title":"Relativistic quantum oscillator under rainbow gravity's effects in traversable wormhole with disclination","authors":"A. Guvendi, Faizuddin Ahmed","doi":"10.1142/s0217751x23501798","DOIUrl":"https://doi.org/10.1142/s0217751x23501798","url":null,"abstract":"","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":"50 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138996386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Pub Date : 2023-12-15DOI: 10.1142/s0217751x23501816
Mehran Dehpour
There is no evidence that the universe must have been homogeneous and isotropic before the big bang nucleosynthesis. The Bianchi type-I cosmology is the simplest homogeneous but anisotropic cosmology. In this work, we investigate thermal leptogenesis, as a baryogenesis scenario, in the Bianchi type-I cosmology. Our results show that for specific values of the anisotropy, the modified thermal leptogenesis generated more baryon asymmetry than the standard one. In this way, anisotropy can help to achieve low-scale leptogenesis.
没有证据表明宇宙在大爆炸核合成之前一定是均质和各向同性的。比安奇 I 型宇宙学是最简单的均质但各向异性的宇宙学。在这项工作中，我们研究了比安奇 I 型宇宙学中作为重生成情景的热轻生成。我们的研究结果表明，对于各向异性的特定值，修正的热跃迁发生比标准的热跃迁发生产生了更多的重子不对称。因此，各向异性有助于实现低尺度的跃迁发生。
{"title":"Thermal leptogenesis in anisotropic cosmology","authors":"Mehran Dehpour","doi":"10.1142/s0217751x23501816","DOIUrl":"https://doi.org/10.1142/s0217751x23501816","url":null,"abstract":"There is no evidence that the universe must have been homogeneous and isotropic before the big bang nucleosynthesis. The Bianchi type-I cosmology is the simplest homogeneous but anisotropic cosmology. In this work, we investigate thermal leptogenesis, as a baryogenesis scenario, in the Bianchi type-I cosmology. Our results show that for specific values of the anisotropy, the modified thermal leptogenesis generated more baryon asymmetry than the standard one. In this way, anisotropy can help to achieve low-scale leptogenesis.","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":"68 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138996246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Pub Date : 2023-12-08DOI: 10.1142/s0217751x23501762
Y. Sekhmani, R. Myrzakulov, Riasat Ali
{"title":"Joule-Thomson Expansion of Black Holes in STU Supergravity","authors":"Y. Sekhmani, R. Myrzakulov, Riasat Ali","doi":"10.1142/s0217751x23501762","DOIUrl":"https://doi.org/10.1142/s0217751x23501762","url":null,"abstract":"","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":"215 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139011267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Pub Date : 2023-12-08DOI: 10.1142/s0217751x2330017x
M. Consoli, Alessandro Pluchino
{"title":"Michelson-Morley Experiments: at the crossroads of Relativity, Cosmology and Quantum Physics","authors":"M. Consoli, Alessandro Pluchino","doi":"10.1142/s0217751x2330017x","DOIUrl":"https://doi.org/10.1142/s0217751x2330017x","url":null,"abstract":"","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":"132 ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139011219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Pub Date : 2023-12-01DOI: 10.1142/s0217751x23501750
Zhi-Gang Wang
We tentatively assign the Y (4230) as the vector tetraquark state with a relative P-wave be-tween the scalar diquark pair, and explore the three-body strong decays Y (4230) → ¯ D ∗− D ∗ 0 π + , ¯ D ∗− D 0 π + , J/ψπ + π − and J/ψK + K − with the light-cone QCD sum rules by assuming contact four-meson coupling constants. The resulting partial decay widths are too small to account for the experimental data, and we expect those decays take place through an intermediate meson. We can search for the intermediate states and precisely measure the branching fractions to diagnose the nature of the Y states.
{"title":"Three-body strong decays of the Y(4230) via the light-cone QCD sum rules","authors":"Zhi-Gang Wang","doi":"10.1142/s0217751x23501750","DOIUrl":"https://doi.org/10.1142/s0217751x23501750","url":null,"abstract":"We tentatively assign the Y (4230) as the vector tetraquark state with a relative P-wave be-tween the scalar diquark pair, and explore the three-body strong decays Y (4230) → ¯ D ∗− D ∗ 0 π + , ¯ D ∗− D 0 π + , J/ψπ + π − and J/ψK + K − with the light-cone QCD sum rules by assuming contact four-meson coupling constants. The resulting partial decay widths are too small to account for the experimental data, and we expect those decays take place through an intermediate meson. We can search for the intermediate states and precisely measure the branching fractions to diagnose the nature of the Y states.","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":" 19","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138618351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Pub Date : 2023-11-04DOI: 10.1142/s0217751x2350149x
Yale Fan
Studies of scattering amplitudes for electric and magnetic charges have identified previously overlooked multiparticle representations of the Poincaré group in four dimensions. Such representations associate nontrivial quantum numbers (known as pairwise helicities) with asymptotically separated pairs of particles, and thus cannot be described as tensor products of one-particle states. We extend this construction to sources and spacetimes of higher dimension. We first establish the dynamical origin of pairwise helicity in [Formula: see text]-form electrodynamics coupled to mutually nonlocal branes. We then interpret this pairwise helicity as a quantum number under an SO(2) pairwise little group associated with pairs of distinct branes. We further characterize the “higher” little groups that could in principle be used to induce multiparticle or multi-brane representations of the Lorentz group.
{"title":"Pairwise Helicity in Higher Dimensions","authors":"Yale Fan","doi":"10.1142/s0217751x2350149x","DOIUrl":"https://doi.org/10.1142/s0217751x2350149x","url":null,"abstract":"Studies of scattering amplitudes for electric and magnetic charges have identified previously overlooked multiparticle representations of the Poincaré group in four dimensions. Such representations associate nontrivial quantum numbers (known as pairwise helicities) with asymptotically separated pairs of particles, and thus cannot be described as tensor products of one-particle states. We extend this construction to sources and spacetimes of higher dimension. We first establish the dynamical origin of pairwise helicity in [Formula: see text]-form electrodynamics coupled to mutually nonlocal branes. We then interpret this pairwise helicity as a quantum number under an SO(2) pairwise little group associated with pairs of distinct branes. We further characterize the “higher” little groups that could in principle be used to induce multiparticle or multi-brane representations of the Lorentz group.","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135728310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Pub Date : 2023-11-03DOI: 10.1142/s0217751x2350166x
Akinori Ohsawa
{"title":"Adiabatic expansion, Local equilibrium and Extended Maxwell distribution for Fire-ball to Describe Multiple particle production","authors":"Akinori Ohsawa","doi":"10.1142/s0217751x2350166x","DOIUrl":"https://doi.org/10.1142/s0217751x2350166x","url":null,"abstract":"","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":"89 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135868967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
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