Proton’s gluon GPDs at large skewness and gravitational form factors from near threshold heavy quarkonium photo-production

Posted by dbos Peking

Kavli Affiliate: Feng Yuan | First 5 Authors: Yuxun Guo, Xiangdong Ji, Feng Yuan, , | Summary: We study the exclusive near-threshold photo-production of heavy quarkonium in the framework of the generalized parton distribution (GPD) factorization, taking the $J/psi$ production as an example. Due to the threshold kinematics, the Compton-like amplitudes are related to gluon […]


Continue.. Proton’s gluon GPDs at large skewness and gravitational form factors from near threshold heavy quarkonium photo-production

Proton’s gluon GPDs at large skewness and gravitational form factors from near threshold heavy quarkonium photo-production

Posted by dbos Peking

Kavli Affiliate: Feng Yuan | First 5 Authors: Yuxun Guo, Xiangdong Ji, Feng Yuan, , | Summary: We study the exclusive near-threshold photo-production of heavy quarkonium in the framework of the generalized parton distribution (GPD) factorization, taking the $J/psi$ production as an example. Due to the threshold kinematics, the Compton-like amplitudes are related to gluon […]


Continue.. Proton’s gluon GPDs at large skewness and gravitational form factors from near threshold heavy quarkonium photo-production

Proton’s gluon GPDs at large skewness and gravitational form factors from near threshold heavy quarkonium photo-production

Posted by klaurent Peking

Kavli Affiliate: Feng Yuan | First 5 Authors: Yuxun Guo, Xiangdong Ji, Feng Yuan, , | Summary: We study the exclusive near-threshold photo-production of heavy quarkonium in the framework of the generalized parton distribution (GPD) factorization, taking the $J/psi$ production as an example. Due to the threshold kinematics, the Compton-like amplitudes are related to gluon […]


Continue.. Proton’s gluon GPDs at large skewness and gravitational form factors from near threshold heavy quarkonium photo-production

Uncovering a Massive z~7.65 Galaxy Hosting a Heavily Obscured Radio-Loud QSO Candidate in COSMOS-Web

Posted by klaurent Tokyo

Kavli Affiliate: John D. Silverman | First 5 Authors: Erini Lambrides, Marco Chiaberge, Arianna Long, Daizhong Liu, Hollis B. Akins | Summary: In this letter, we report the discovery of the highest redshift, heavily obscured, radio-loud QSO candidate selected using JWST NIRCam/MIRI, mid-IR, sub-mm, and radio imaging in the COSMOS-Web field. Using multi-frequency radio observations […]


Continue.. Uncovering a Massive z~7.65 Galaxy Hosting a Heavily Obscured Radio-Loud QSO Candidate in COSMOS-Web

Uncovering a Massive z~7.7 Galaxy Hosting a Heavily Obscured Radio-Loud QSO Candidate in COSMOS-Web

Posted by dbos Tokyo

Kavli Affiliate: John D. Silverman | First 5 Authors: Erini Lambrides, Marco Chiaberge, Arianna Long, Daizhong Liu, Hollis B. Akins | Summary: In this letter, we report the discovery of the highest redshift, heavily obscured, radio-loud AGN candidate selected using JWST NIRCam/MIRI, mid-IR, sub-mm, and radio imaging in the COSMOS-Web field. Using multi-frequency radio observations […]


Continue.. Uncovering a Massive z~7.7 Galaxy Hosting a Heavily Obscured Radio-Loud QSO Candidate in COSMOS-Web

Nanopore-patterned CuSe drives the realization of PbSe-CuSe lateral heterostructure

Posted by klaurent Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Bo Li, Jing Wang, Qilong Wu, Qiwei Tian, Ping Li | Summary: Monolayer PbSe has been predicted to be a two-dimensional (2D) topological crystalline insulator (TCI) with crystalline symmetry-protected Dirac-cone-like edge states. Recently, few-layered epitaxial PbSe has been grown on the SrTiO3 substrate successfully, but the corresponding […]


Continue.. Nanopore-patterned CuSe drives the realization of PbSe-CuSe lateral heterostructure

Addressing the final-parsec problem by combining milli-Hertz gravitational-wave observation and AGN survey

Posted by klaurent Peking

Kavli Affiliate: Xian Chen | First 5 Authors: Liang-Gui Zhu, Xian Chen, , , | Summary: Massive black hole binaries (MBHBs) are the loudest gravitational-wave (GW) sources in milli-Hertz (mHz) GW band, but their dynamical evolution may stall when the black holes reach the innermost parsec of a galaxy. Such a “final-parsec problem” could be […]


Continue.. Addressing the final-parsec problem by combining milli-Hertz gravitational-wave observation and AGN survey

Unveiling the solution to the final-parsec problem by combining milli-Hertz gravitational-wave observation and AGN survey

Posted by dbos Peking

Kavli Affiliate: Xian Chen | First 5 Authors: Liang-Gui Zhu, Xian Chen, , , | Summary: Massive black hole binaries (MBHBs) could be the loudest gravitational-wave (GW) sources in milli-Hertz (mHz) GW band, but their dynamical evolution may stall when the black holes reach the innermost parsec of a galaxy. Such a "final-parsec problem" could […]


Continue.. Unveiling the solution to the final-parsec problem by combining milli-Hertz gravitational-wave observation and AGN survey

The Compton-Pair telescope: A prototype for a next-generation MeV $γ$-ray observatory

Posted by klaurent Stanford

Kavli Affiliate: Sven Herrmann | First 5 Authors: Janeth Valverde, Nicholas Kirschner, Zachary Metzler, Lucas D. Smith, Nicholas Cannady | Summary: The Compton Pair (ComPair) telescope is a prototype that aims to develop the necessary technologies for future medium energy gamma-ray missions and to design, build, and test the prototype in a gamma-ray beam and […]


Continue.. The Compton-Pair telescope: A prototype for a next-generation MeV $γ$-ray observatory