Pub Date : 2020-10-26DOI: 10.1016/j.physletb.2021.136584
F. Gao, J. Pawlowski
{"title":"Chiral phase structure and critical end point in QCD","authors":"F. Gao, J. Pawlowski","doi":"10.1016/j.physletb.2021.136584","DOIUrl":"https://doi.org/10.1016/j.physletb.2021.136584","url":null,"abstract":"","PeriodicalId":8457,"journal":{"name":"arXiv: High Energy Physics - Phenomenology","volume":"520 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77094814","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}
Pub Date : 2020-10-24DOI: 10.1103/PHYSREVD.103.075003
P. Bakhti, M. Rajaee
We investigate the potential of the next generation long-baseline neutrino experiments DUNE and T2HK as well as the upcoming reactor experiment JUNO to constrain Non-Standard Interaction (NSI) parameters. JUNO is going to provide the most precise measurements of solar neutrino oscillation parameters as well as determining the neutrino mass ordering. We study how the results of JUNO combined with those of long-baseline neutrino experiments such as DUNE and T2HK can help to determine oscillation parameters and to constrain NSI parameters. We present excluded regions in NSI parameter space, $epsilon_{alpha beta}$ assuming Standard Model (SM) as the null hypothesis. We further explore the correlations between the NSI parameters and CP-violation phase.
{"title":"Sensitivities of future reactor and long-baseline neutrino experiments to NSI","authors":"P. Bakhti, M. Rajaee","doi":"10.1103/PHYSREVD.103.075003","DOIUrl":"https://doi.org/10.1103/PHYSREVD.103.075003","url":null,"abstract":"We investigate the potential of the next generation long-baseline neutrino experiments DUNE and T2HK as well as the upcoming reactor experiment JUNO to constrain Non-Standard Interaction (NSI) parameters. JUNO is going to provide the most precise measurements of solar neutrino oscillation parameters as well as determining the neutrino mass ordering. We study how the results of JUNO combined with those of long-baseline neutrino experiments such as DUNE and T2HK can help to determine oscillation parameters and to constrain NSI parameters. We present excluded regions in NSI parameter space, $epsilon_{alpha beta}$ assuming Standard Model (SM) as the null hypothesis. We further explore the correlations between the NSI parameters and CP-violation phase.","PeriodicalId":8457,"journal":{"name":"arXiv: High Energy Physics - Phenomenology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76477452","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}
Pub Date : 2020-10-23DOI: 10.1103/PHYSREVD.103.036005
Zhi Hu, Siqi Xu, C. Mondal, Xingbo Zhao, J. Vary
We investigate the leading-twist transverse momentum-dependent distribution functions (TMDs) for a physical electron, a spin-1/2 composite system consisting of a bare electron and a photon, using the Basis Light-front Quantization (BLFQ) framework. The light-front wave functions of the physical electron are obtained from the eigenvectors of the light-front QED Hamiltonian. We evaluate the TMDs using the overlaps of the light-front wave functions. The BLFQ results are found to be in excellent agreement with those TMDs calculated using lowest-order perturbation theory.
{"title":"Transverse structure of electron in momentum space in basis light-front quantization","authors":"Zhi Hu, Siqi Xu, C. Mondal, Xingbo Zhao, J. Vary","doi":"10.1103/PHYSREVD.103.036005","DOIUrl":"https://doi.org/10.1103/PHYSREVD.103.036005","url":null,"abstract":"We investigate the leading-twist transverse momentum-dependent distribution functions (TMDs) for a physical electron, a spin-1/2 composite system consisting of a bare electron and a photon, using the Basis Light-front Quantization (BLFQ) framework. The light-front wave functions of the physical electron are obtained from the eigenvectors of the light-front QED Hamiltonian. We evaluate the TMDs using the overlaps of the light-front wave functions. The BLFQ results are found to be in excellent agreement with those TMDs calculated using lowest-order perturbation theory.","PeriodicalId":8457,"journal":{"name":"arXiv: High Energy Physics - Phenomenology","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79749328","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}
Pub Date : 2020-10-22DOI: 10.1103/physrevd.102.094021
Wen-Long Sang, F. Feng, Yu Jia
Within the nonrelativistic QCD (NRQCD) factorization framework, we compute the ${mathcal O}(alpha_s v^2)$ corrections to the hadronic decay rate of vector quarkonia, exemplified by $J/psi$ and $Upsilon$. Setting both the renormalization and NRQCD factorization scales to be $m_Q$, we obtain $Gamma(J/psito {rm LH})= 0.0716frac{alpha_s^3}{m_c^2} langle mathcal{O}_1({}^3S_1)rangle_{J/psi} [1-1.19alpha_s+(-5.32+3.03alpha_s)langle v^2rangle_{J/psi}]$ and $Gamma(Upsilonto {rm LH})= 0.0716frac{alpha_s^3}{m_b^2}langlemathcal{O}_1({}^3S_1)rangle_{Upsilon}[1-1.56alpha_s+(-5.32+4.61alpha_s)langle v^2rangle_{Upsilon}]$. We confirm the previous calculation of $mathcal{O}(alpha_s)$ corrections on a diagram-by-diagram basis, with the accuracy significantly improved. For $J/psi$ hadronic decay, we find that the ${mathcal O}(alpha_sv^2)$ corrections are moderate and positive, nevertheless unable to counterbalance the huge negative corrections. On the other hand, the effect of ${mathcal O}(alpha_sv^2)$ corrections for $Upsilon(nS)$ is sensitive to the $mathcal{O}(v^2)$ NRQCD matrix elements. With the appropriate choice of the NRQCD matrix elements, our theoretical predictions for the decay rates may be consistent with the experimental data for $Upsilon(1S,2S)to {rm LH}$. As a byproduct, we also present the theoretical predictions for the branching ratio of $J/psi(Upsilon)to 3gamma$ accurate up to $mathcal{O}(alpha_s v^2)$.
{"title":"O(αsv2)\u0000 corrections to the hadronic decay of vector quarkonia","authors":"Wen-Long Sang, F. Feng, Yu Jia","doi":"10.1103/physrevd.102.094021","DOIUrl":"https://doi.org/10.1103/physrevd.102.094021","url":null,"abstract":"Within the nonrelativistic QCD (NRQCD) factorization framework, we compute the ${mathcal O}(alpha_s v^2)$ corrections to the hadronic decay rate of vector quarkonia, exemplified by $J/psi$ and $Upsilon$. Setting both the renormalization and NRQCD factorization scales to be $m_Q$, we obtain $Gamma(J/psito {rm LH})= 0.0716frac{alpha_s^3}{m_c^2} langle mathcal{O}_1({}^3S_1)rangle_{J/psi} [1-1.19alpha_s+(-5.32+3.03alpha_s)langle v^2rangle_{J/psi}]$ and $Gamma(Upsilonto {rm LH})= 0.0716frac{alpha_s^3}{m_b^2}langlemathcal{O}_1({}^3S_1)rangle_{Upsilon}[1-1.56alpha_s+(-5.32+4.61alpha_s)langle v^2rangle_{Upsilon}]$. We confirm the previous calculation of $mathcal{O}(alpha_s)$ corrections on a diagram-by-diagram basis, with the accuracy significantly improved. For $J/psi$ hadronic decay, we find that the ${mathcal O}(alpha_sv^2)$ corrections are moderate and positive, nevertheless unable to counterbalance the huge negative corrections. On the other hand, the effect of ${mathcal O}(alpha_sv^2)$ corrections for $Upsilon(nS)$ is sensitive to the $mathcal{O}(v^2)$ NRQCD matrix elements. With the appropriate choice of the NRQCD matrix elements, our theoretical predictions for the decay rates may be consistent with the experimental data for $Upsilon(1S,2S)to {rm LH}$. As a byproduct, we also present the theoretical predictions for the branching ratio of $J/psi(Upsilon)to 3gamma$ accurate up to $mathcal{O}(alpha_s v^2)$.","PeriodicalId":8457,"journal":{"name":"arXiv: High Energy Physics - Phenomenology","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80615958","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}