Tootfinder

$\bar{B}_{s,d}^{0} \to J/\psi \mu^{ }\mu^{-}$ Decays in QCD Factorization
Xin-Qiang Li, Yan Shi, Ya-Dong Yang, Xing-Bo Yuan, Chun-Yang Zhao
https://arxiv.org/abs/2510.00378 http…

$\bar{B}_{s,d}^{0} \to J/ψμ^{+}μ^{-}$ Decays in QCD Factorization
Motivated by the first LHCb searches for the rare $\bar{B}_{s,d}^{0} \to J/ψμ^{+}μ^{-}$ decays, we perform a detailed study of these processes within the QCD factorization formalism. Since the transverse size of the $J/ψ$ meson is small in the heavy quark mass limit, this formalism is generally expected to hold for these decays. We include both the leading- and the next-to-leading-order QCD corrections to the hard-scattering kernels, which are convoluted with the light-cone distribution amp…

Investigation of $\Lambda_{b}\to \Lambda_{c} \ell^-\overline\nu_\ell$ Decays in Perturbative QCD Approach
Ying Li, Jie Chen, Ya-Xin Wang, Zhi-Tian Zou
https://arxiv.org/abs/2509.02257

Investigation of $Λ_{b}\to Λ_{c} \ell^-\overlineν_\ell$ Decays in Perturbative QCD Approach
We investigate the semileptonic decays $Λ_{b} \to Λ_{c} \ell^- \barν_\ell$ (with $\ell = e, μ, τ$) within the framework of perturbative QCD (pQCD). The six independent $Λ_b \to Λ_c$ transition form factors are first calculated in the low-$q^2$ region using the $k_T$ factorization approach. These are then extrapolated to the full physical $q^2$ range via the model-independent $z$-expansion, incorporating recent lattice QCD results at high $q^2$. Based on the obtained form factors, we comp…

Testing perturbative QCD calculations with beauty-meson production in proton-proton collisions with ALICE
Fabrizio Chinu (for the ALICE Collaboration)
https://arxiv.org/abs/2509.00458

Testing perturbative QCD calculations with beauty-meson production in proton-proton collisions with ALICE
Measurements of the production cross section of beauty hadrons in proton-proton (pp) collisions provide excellent tests of perturbative quantum chromodynamics (pQCD) calculations. Theoretical approaches based on the factorisation theorem allow for the calculation of differential cross sections for hadron production as functions of transverse momentum ($p_{\mathrm{T}}$) and rapidity ($y$). Measurements down to low transverse momenta are also fundamental ingredients for the estimation of the $\ma…

$S$-wave kaon-nucleon interactions from lattice QCD on the physical point
Kotaro Murakami, Sinya Aoki, Takumi Doi, Yan Lyu, Wren Yamada
https://arxiv.org/abs/2509.00838 https://…

$S$-wave kaon-nucleon interactions from lattice QCD on the physical point
We investigate S-wave kaon-nucleon ($KN$) interactions with strangeness $S=+1$ in lattice QCD using the time-dependent HAL QCD method. Employing $(2+1)$-flavor gauge configuration with $m_π\approx 137~\textrm{MeV}$ and $m_{K}\approx 502~\textrm{MeV}$, we calculate the $KN$ potentials at the leading order in the derivative expansion. The potentials in both isospin channels ($I=1$ and $I=0$) exhibit repulsion at short distances, while only the $I=0$ potential has a small attractive pocket at int…

Semileptonic $\Omega_{b}^{*-}\rightarrow\Omega_{c}^{*0}\ \ell\ \bar{\nu}_{\ell}$ transition in QCD
A. Amiri, P. Eslami, K. Azizi, R. Jafari
https://arxiv.org/abs/2509.01195 http…

Semileptonic $Ω_{b}^{*-}\rightarrowΩ_{c}^{*0}\ \ell\ \barν_{\ell}$ transition in QCD
We employ the QCD sum rule method to study the semileptonic weak decay of the single bottom baryon $Ω_{b}^{*-}$ with spin $\frac{3}{2}$ into the single charmed baryon $Ω_{c}^{*0}$ with spin $\frac{3}{2}$, corresponding to a $\frac{3}{2}\rightarrow\frac{3}{2}$ weak transition. A three-point correlation function is calculated in both the physical and theoretical sides to derive the sum rules for the form factors of the transition. The analysis incorporates both the perturbative and non-perturba…

Polarized Neutral and Charged Current Semi-Inclusive Deep-Inelastic Scattering at NNLO in QCD
Leonardo Bonino, Thomas Gehrmann, Markus L\"ochner, Kay Sch\"onwald, Giovanni Stagnitto
https://arxiv.org/abs/2510.00100

Polarized Neutral and Charged Current Semi-Inclusive Deep-Inelastic Scattering at NNLO in QCD
The semi-inclusive production of identified hadrons in deeply inelastic lepton scattering on polarized nucleons allows to probe the spin structure of the nucleon target in a more detailed level than through fully inclusive processes. We compute the NNLO QCD corrections to longitudinally polarized semi-inclusive deep inelastic processes mediated by electroweak neutral and charged currents. We present the first calculation of polarized electroweak structure functions in the Larin scheme up to NNL…

Two-loop QCD amplitudes for $t\bar{t}\gamma$ production at hadron colliders
Guoxing Wang, Li Lin Yang
https://arxiv.org/abs/2510.01774 https://arxiv.org/pd…

Two-loop QCD amplitudes for $t\bar{t}γ$ production at hadron colliders
The associated production of a photon and a top-antitop quark pair ($t\bar{t}γ$) is important for measuring the top-quark charge and probing the top-photon interaction, and it requires improved theoretical predictions. We focus on the calculation of two-loop amplitudes for $t\bar{t}γ$ production at hadron colliders. The infrared singularities with full top-quark mass dependence are derived from universal anomalous dimensions combined with one-loop massive amplitudes expanded to higher orders …

The Physics of Jet Quenching in Perturbative QCD
Yacine Mehtar-Tani
https://arxiv.org/abs/2509.26394 https://arxiv.org/pdf/2509.26394

The Physics of Jet Quenching in Perturbative QCD
Hard processes in collider experiments typically produce QCD jets, which have long served as precision tests of QCD in the vacuum. More recently, heavy-ion programs at RHIC and the LHC have offered a novel perspective on jets, establishing them as unique probes of strongly interacting matter. Experimental observations, including the suppression of high-$p_T$ hadrons and jets, provide compelling evidence for the formation of a new state of matter and its strong coupling to energetic partons. T…

Non-diagonal DVCS and studies of hadronic structure with $N \to N^*$ transition GPDs
Kirill Semenov-Tian-Shansky
https://arxiv.org/abs/2509.01114 https://a…

Non-diagonal DVCS and studies of hadronic structure with $N \to N^*$ transition GPDs
Transition generalized parton distributions (GPDs) describe matrix elements of nonlocal partonic QCD operators between the ground and excited baryon states and provide new tools for quantifying and interpreting the structure of baryon resonances in QCD. We discuss a description of non-diagonal Deeply Virtual Compton Scattering process involving a transition between a nucleon and a nucleon resonance in the $πN$ system within the framework of transition GPDs. We address the physical content of $…

Higher-order QCD and electroweak corrections for $t{\bar t}H$ production
Nikolaos Kidonakis, Nodoka Yamanaka
https://arxiv.org/abs/2509.23293 https://arxiv…

Higher-order QCD and electroweak corrections for $t{\bar t}H$ production
We calculate higher-order QCD and electroweak (EW) corrections for the associated production of a top-antitop quark pair and a Higgs boson ($t{\bar t}H$ production). Using soft-gluon resummation in one-particle-inclusive (1PI) kinematics, we present cross sections through approximate N$^3$LO (aN$^3$LO) in QCD and NLO in EW for $t{\bar t}H$ production at LHC energies. These aN$^3$LO QCD + NLO EW results provide significant enhancements over lower orders and a reduced scale dependence. Based on o…