Jia-Jie Han

ORCID: 0000-0003-4332-6249
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About
Contact & Profiles
Research Areas
  • Particle physics theoretical and experimental studies
  • Quantum Chromodynamics and Particle Interactions
  • High-Energy Particle Collisions Research
  • Atomic and Subatomic Physics Research
  • Dark Matter and Cosmic Phenomena
  • Advanced ceramic materials synthesis
  • Black Holes and Theoretical Physics
  • Computational Physics and Python Applications
  • Particle Detector Development and Performance
  • Smart Materials for Construction
  • Superconducting Materials and Applications
  • Radioactive Decay and Measurement Techniques
  • Carbon Nanotubes in Composites
  • Medical Imaging Techniques and Applications
  • Advanced X-ray and CT Imaging

Institute of Theoretical Physics
2021-2022

Nanjing Normal University
2021-2022

Tianjin University
2017

University of Rochester
2012-2013

Abstract The exotic states $$X_{0,1}(2900)$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msub> <mml:mi>X</mml:mi> <mml:mn>0</mml:mn> <mml:mo>,</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msub> <mml:mo>(</mml:mo> <mml:mn>2900</mml:mn> <mml:mo>)</mml:mo> </mml:math> with the quark flavor of $$cs\bar{u}\bar{d}$$ <mml:mi>c</mml:mi> <mml:mi>s</mml:mi> <mml:mover> <mml:mi>u</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> <mml:mi>d</mml:mi> are recently observed in mass...

10.1140/epjc/s10052-021-08857-8 article EN cc-by The European Physical Journal C 2021-01-01

Abstract The doubly charmed baryon was recently observed by LHCb via the decay processes of and . These discovery channels were successfully predicted in a framework which short-distance contributions are calculated under factorization hypothesis long-distance estimated using rescattering mechanism for final-state-interaction effects. In this paper, we illustrate above detail systematic studies on two-body baryonic decays involving baryons , singly light pseudoscalar mesons

10.1088/1674-1137/abec68 article EN cc-by Chinese Physics C 2021-03-08

We reanalyze the $\Lambda_b\to p$ transition form factors in perturbative QCD (PQCD) approach by including higher-twist light-cone distribution amplitudes (LCDAs) of a $\Lambda_b$ baryon and proton. The previous PQCD evaluation performed decades ago with only leading-twist proton LCDAs gave factors, which are two orders magnitude smaller than indicated experimental data. find that twist-4 -5 contribute dominantly, enhanced become consistent those from lattice other nonperturbative methods....

10.1140/epjc/s10052-022-10642-0 article EN cc-by The European Physical Journal C 2022-08-06

Abstract After the discovery of double-charm baryon $$\Xi _{cc}^{++}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>Ξ</mml:mi> <mml:mrow> <mml:mi>cc</mml:mi> </mml:mrow> <mml:mo>+</mml:mo> </mml:msubsup> </mml:math> by LHCb, one most important topics is to search for bottom-charm baryons which contain a b quark, c quark and light quark. In this work, we study two-body non-leptonic weak decays into spin-1/2 bottomed pseudoscalar meson with short-distance...

10.1140/epjc/s10052-021-09239-w article EN cc-by The European Physical Journal C 2021-06-01

The $CP$ violation (CPV) in the baryon system has not yet been definitively established. We demonstrate that individual partial-wave CPV $\Lambda_b\to p\pi^-,pK^-$ decays can exceed $10\%$, but destruction between different partial waves results small net direct as observed current experiments. There is thus high possibility of identifying $b$-baryon through measurements CPV. above observation supported by first full QCD calculation two-body hadronic $\Lambda_b$ with controllable...

10.48550/arxiv.2409.02821 preprint EN arXiv (Cornell University) 2024-09-04

After the discovery of double-charm baryon $\Xi_{cc}^{++}$ by LHCb, one most important topics is to search for bottom-charm baryons which contain a $b$ quark, $c$ quark and light quark. In this work, we study two-body non-leptonic weak decays into spin-$1/2$ bottomed pseudoscalar meson with short-distance contributions calculated under factorization hypothesis long-distance considering final-state-interaction effects. The branching fractions all fifty-seven decay channels are estimated....

10.48550/arxiv.2102.00961 preprint EN cc-by arXiv (Cornell University) 2021-01-01

We reanalyze the $Λ_b\to p$ transition form factors in perturbative QCD (PQCD) approach by including higher-twist light-cone distribution amplitudes (LCDAs) of a $Λ_b$ baryon and proton. The previous PQCD evaluation performed decades ago with only leading-twist proton LCDAs gave factors, which are two orders magnitude smaller than indicated experimental data. find that twist-4 -5 contribute dominantly, enhanced become consistent those from lattice other nonperturbative methods. estimated...

10.48550/arxiv.2202.04804 preprint EN cc-by-nc-nd arXiv (Cornell University) 2022-01-01
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