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Surveys in High Energy Physics最新文献

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CP violation in the K-system k系中的CP违背
Surveys in High Energy Physics Pub Date : 1997-09-08 DOI: 10.1080/01422419808240871
J. Lee‐Franzini, P. Franzini
{"title":"CP violation in the K-system","authors":"J. Lee‐Franzini, P. Franzini","doi":"10.1080/01422419808240871","DOIUrl":"https://doi.org/10.1080/01422419808240871","url":null,"abstract":"Abstract CP violation in the K system is pedagogically reviewed. We discuss its manifestations in the neutral K meson systems, in rare K meson decays and of charged K mesons. Results from classical experiments, and perspectives for upcoming experiments are included. We also briefly discuss the possibility of CPT tests.","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123329919","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: 5
Parton distributions and heavy quark production on nucleon and nuclear targets 核子和核靶上的部子分布和重夸克产生
Surveys in High Energy Physics Pub Date : 1997-05-01 DOI: 10.1080/01422419708228829
Y. Shabelski
{"title":"Parton distributions and heavy quark production on nucleon and nuclear targets","authors":"Y. Shabelski","doi":"10.1080/01422419708228829","DOIUrl":"https://doi.org/10.1080/01422419708228829","url":null,"abstract":"Abstract The perturbative QCD evolution equation and the respective parton distributions in a proton are discussed, mainly in small x region. The different possibilities of shadow corrections are considered which allow one to avoid the unitarity violation. The possibility of estimation of the quality of phenomenological sets of the structure functions on the base of perturbative QCD is presented. Two approximate methods to extract the gluon distributions directly from the F2(x, Q2) data are discussed together with the new HERA data. Charm and beauty hadroproduction and photoproduction processes are considered in the framework of perturbative QCD and the results are compared with conventional parton model predictions. The role of infrared region contribution to F2(xQ2) structure function is discussed. The case of nuclear targets is considered also and A-dependences of charmed and beauty hadron production cross sections are calculated accounting for the difference of parton distributions in free and bound n...","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132506137","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
Quenched hadron spectrum and decay constants on the lattice 猝灭强子谱和晶格上的衰变常数
Surveys in High Energy Physics Pub Date : 1997-04-06 DOI: 10.1080/01422419808240879
L. Giusti
{"title":"Quenched hadron spectrum and decay constants on the lattice","authors":"L. Giusti","doi":"10.1080/01422419808240879","DOIUrl":"https://doi.org/10.1080/01422419808240879","url":null,"abstract":"In this talk we present the results obtained from a study of ${cal O}(2000)$ (quenched) lattice configurations from the APE collaboration, at $6.0lebetale 6.4$, using both the Wilson and the SW-Clover fermion action. We determine the light hadronic spectrum and the meson decay constants. For the light-light systems we find an agreement with the experimental data of $sim 5%$ for mesonic masses and $sim 10%-15%$ for baryonic masses and pseudoscalar decay constants; a larger deviation is present for the vector decay constants. For the heavy-light decay constants we find $f_{D_s}=237 pm 16 MeV, f_{D} = 221 pm 17 MeV (f_{D_s}/f_D=1.07(4)), f_{B_s} = 205 pm 35 MeV, f_{B} = 180 pm 32 MeV (f_{B_s}/f_B=1.14(8))$, in good agreement with previous estimates.","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127911514","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
Chromo-and electrodynamics of heavy unstable particles 重不稳定粒子的色电动力学
Surveys in High Energy Physics Pub Date : 1997-04-01 DOI: 10.1080/01422419708227687
V. Khoze
{"title":"Chromo-and electrodynamics of heavy unstable particles","authors":"V. Khoze","doi":"10.1080/01422419708227687","DOIUrl":"https://doi.org/10.1080/01422419708227687","url":null,"abstract":"Abstract In this lecture I survey some selected physics issues on radiative interference phenomena in the production of heavy unstable particles. A special emphasis is placed on the reactions e+e−→ W+W−→ 4 jets and e+e− → tt → bW+bW−. A transparent recipe is given for quantifying the level of suppression of the interference effects in the inclusive production processes. The influence of the W width on the Coulomb corrections to the threshold W+W− production is briefly addressed.","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132224065","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
Perturbative QCD and semihard processes 微扰QCD与半硬过程
Surveys in High Energy Physics Pub Date : 1997-04-01 DOI: 10.1080/01422419708227686
M. Ryskin
{"title":"Perturbative QCD and semihard processes","authors":"M. Ryskin","doi":"10.1080/01422419708227686","DOIUrl":"https://doi.org/10.1080/01422419708227686","url":null,"abstract":"Abstract It is shown that pert. QCD is able to describe the main properties of the hadron interactions at very high energies, including the behaviour of the total inelastic and diffractive cross sections. The inclusive spectra of secondary hadrons are governed by the production and fragmentation of the gluon minijets with transverse momentum qt∼qo , which grows with energy as q2 t ∼q 2 o∼ A2exp(2.5√lns). Thanks to this fact one can apply the pert. QCD to discuss the processes, which are usually considered to be “soft”.","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121978062","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
Introduction to string theory 弦理论概论
Surveys in High Energy Physics Pub Date : 1997-04-01 DOI: 10.1080/01422419708227685
D. Bailin
{"title":"Introduction to string theory","authors":"D. Bailin","doi":"10.1080/01422419708227685","DOIUrl":"https://doi.org/10.1080/01422419708227685","url":null,"abstract":"","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124832801","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
High energy scattering in perturbative QCD 微扰QCD中的高能散射
Surveys in High Energy Physics Pub Date : 1997-04-01 DOI: 10.1080/01422419708227682
L. Lipatov
{"title":"High energy scattering in perturbative QCD","authors":"L. Lipatov","doi":"10.1080/01422419708227682","DOIUrl":"https://doi.org/10.1080/01422419708227682","url":null,"abstract":"Abstract In these lectures some perturbative approaches to the description of high energy scattering processes in QCD are reviewed. It is shown, that the gluon is reggeized and the pomeron is a compound state of two reggeized gluons. We demonstrate, that the equations for compound states of an arbitrary number of reggeized gluons in the multi-colour QCD have remarkable mathematical properties. In the conclusion the effective action describing the gluon-Reggeon interactions is discussed.","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132201975","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
Localization, conformal motions and the duistermaat-heckman theorem 局部化，共形运动和duistermaat-heckman定理
Surveys in High Energy Physics Pub Date : 1997-02-01 DOI: 10.1080/01422419708219643
L. Paniak
{"title":"Localization, conformal motions and the duistermaat-heckman theorem","authors":"L. Paniak","doi":"10.1080/01422419708219643","DOIUrl":"https://doi.org/10.1080/01422419708219643","url":null,"abstract":"Abstract Here we develop an explicitly covariant expression for the stationary phase approximation of a classical partition function based on geometric properties of the phase space. As an example of the utility of such an evaluation we show that in the case of the Hamiltonian flows generating conformal rescalings of the underlying geometry, the classical partition function is given exactly by the leading term of the stationary phase approximation. We give an explicit example of such an extension of the Duistermaat-Heckman theorem.","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121851843","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
Hybrid mesons with heavy quarks 带有重夸克的杂化介子
Surveys in High Energy Physics Pub Date : 1997-02-01 DOI: 10.1080/01422419708219651
Yu. B. Yufryakov
{"title":"Hybrid mesons with heavy quarks","authors":"Yu. B. Yufryakov","doi":"10.1080/01422419708219651","DOIUrl":"https://doi.org/10.1080/01422419708219651","url":null,"abstract":"Abstract Model-independent features of hybrid meson states are discussed. These general arguments are applied to the QCD-based constituent gluon model based on the Vacuum Background Correlators Method (VBCM). The leading-order Hamiltonian is derived from the general formalism.The masses of heavy quark hybrids, including charmonium hybrid states, are calculated. We predict ccg hybrids at 4·1 ± 0·1 GeV and bbg ones at 10·5 ± 0·1 GeV. Comparison with some other models are made.","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133867296","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
Semiclassical calculation of multiparticle cross-sections: B violation and multiple production of bosons at high-energies 多粒子截面的半经典计算:高能B违和和玻色子的多重产生
Surveys in High Energy Physics Pub Date : 1997-02-01 DOI: 10.1080/01422419708219636
P. Tinyakov
{"title":"Semiclassical calculation of multiparticle cross-sections: B violation and multiple production of bosons at high-energies","authors":"P. Tinyakov","doi":"10.1080/01422419708219636","DOIUrl":"https://doi.org/10.1080/01422419708219636","url":null,"abstract":"Abstract We describe semiclassical method of calculation of multiparticle cross sections in weakly coupled theories both with and without tunneling. The method is illustrated by analytical and numerical calculations in a number of models. Recent results are reviewed.","PeriodicalId":264948,"journal":{"name":"Surveys in High Energy Physics","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124713840","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
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