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相关论文: Inclusive charmonium production at PANDA experimen…

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We present the complete NLO electroweak contribution of $\mathcal{O}(\alpha^2_s \alpha)$ to the production of diagonal squark--anti-squark pairs in proton--proton collisions. Compared to the lowest-order $\mathcal{O}(\alpha_s\alpha +…

高能物理 - 唯象学 · 物理学 2009-03-24 Wolfgang Hollik , Edoardo Mirabella

Measurement of angular distributions and energy spectra of $\alpha$ and deuterons through breakup, transfer and incomplete fusion processes to dis-entangle their relative contributions and to investigate relative importance of…

Recent results of particle production in the energy regime of the CERN-SPS are reviewed. In order to collect information on the properties of the QCD phase diagram systematic studies of the system size and the energy dependence of particle…

核实验 · 物理学 2014-11-21 Christoph Blume

Data and their interpretations are reviewed for $J/\psi$ and $\psi^{\prime}$ production in heavy ion collisions with particular emphasis on the recently reported discontinuity in $Pb$-$Pb$ reactions. The experimental set-up is described and…

高能物理 - 唯象学 · 物理学 2009-10-31 C. Gerschel , J. Hufner

We discuss the central exclusive production of $f_{1}$ mesons in proton-proton collisions. The diffractive pomeron-pomeron fusion process within the tensor-pomeron approach is considered. Two ways to construct the pomeron-pomeron-$f_{1}$…

高能物理 - 唯象学 · 物理学 2021-12-08 Piotr Lebiedowicz

The new high precision data on charmonium production in proton-nucleus collisions by the E866/NuSea collaboration at Fermilab allow - together with older data at lower energies - to fix a unique set of parameters for the standard production…

高能物理 - 唯象学 · 物理学 2009-10-31 F. Arleo , P. -B. Gossiaux , T. Gousset , J. Aichelin

As a stringent test of the nonrelativistic QCD factorization approach for inclusive heavy-quarkonium production in high-energy hadron collision, the polarized heavy-quarkonium production at the Tevatron is discussed. The polarization of…

高能物理 - 唯象学 · 物理学 2007-05-23 Jungil Lee

Hadroproductions of charmonium and bottomonium $\chi_J$ in polarized $pp$ collisions at RHIC energies are studied. Two--spin asymmetries $A_{LL}^{\chi_J}(pp)$ for these reactions are very good parameters for examining the polarized gluon…

高能物理 - 唯象学 · 物理学 2009-09-25 T. Yamanishi , T. Morii , S. Tanaka

We investigate the spatial quantum noise properties of the one dimensional transverse pattern formation instability in intra-cavity second-harmonic generation. The Q representation of a quasi-probability distribution is implemented in terms…

量子物理 · 物理学 2007-05-23 M. Bache , P. Scotto , R. Zambrini , M. San Miguel , M. Saffman

Thirty years ago, the suppression of charmonium production in heavy-ion collisions was first proposed as an unambiguous signature for the formation of a Quark-Gluon Plasma. Since then, experiments at fixed-target accelerators (SPS) and…

核实验 · 物理学 2016-11-09 E. Scomparin

The ALICE Collaboration has studied the inclusive production of the charmonium state $\psi(2S)$ in proton-lead (p-Pb) collisions at the nucleon-nucleon centre of mass energy $\sqrt{s_{NN}}$ = 5.02 TeV at the CERN LHC. The measurement was…

核实验 · 物理学 2015-10-13 ALICE Collaboration

We discuss the double spin asymmetries in P-wave charmonium hadroproduction with non-zero transverse momenta at fixed target energies, $\sqrt{s}\simeq40$ GeV, within the framework of the NRQCD factorization approach. The size of the…

高能物理 - 唯象学 · 物理学 2009-10-31 Wolf-Dieter Nowak , Avto Tkabladze

We describe calculations of $c \bar c$ production to next-to-next-to-leading order (NNLO) and next-to-next-to-leading logarithm (NNLL) near threshold in $pp$ and $\pi^- p$ interactions. We study the relevance of these calculations for…

高能物理 - 唯象学 · 物理学 2008-11-26 N. Kidonakis , E. Laenen , S. Moch , R. Vogt

J/psi-pair production at the LHC is currently one of the few tools available to probe gluon transverse momentum distributions (TMDs). In this context, data from LHCb in the collider mode have the potential to probe the evolution of the…

高能物理 - 唯象学 · 物理学 2024-03-04 Alice Colpani Serri , Jelle Bor , Daniel Boer , Jean-Philippe Lansberg

The detection of exclusive processes induced by antiproton beams in the GeV range at PANDA(FAIR) opens possibilities for testing QCD predictions on the nucleon structure. In particular, the measurement of electromagnetic nucleon form…

高能物理 - 唯象学 · 物理学 2010-11-18 E. Tomasi-Gustafsson , E. ~A. ~Kuraev , Yu. ~M. ~Bystritskiy

I present predictions for the inclusive production of D mesons at the CERN LHC in the general-mass variable-flavor-number scheme at next-to-leading order. Numerical results are compared to data where available, and uncertainties due to…

高能物理 - 唯象学 · 物理学 2012-06-01 H. Spiesberger

The charmonium spectrum is calculated with two nonrelativistic quark models, the linear potential model and the screened potential model. Using the obtained wavefunctions, we evaluate the electromagnetic transitions of charmonium states up…

高能物理 - 唯象学 · 物理学 2017-03-01 Wei-Jun Deng , Hui Liu , Long-Cheng Gui , Xian-Hui Zhong

In this article, we perform a systematic investigation of the cold nuclear matter (CNM) effects, operative on charmonium ($J/\psi$, $\psi(2S)$) production, in fixed target proton-nucleus (p+A) collisions. Influence on charmonium production…

核理论 · 物理学 2026-05-25 Sourav Kanti Giri , Partha Pratim Bhaduri , Biswarup Paul , Santosh K. Das

We review recent progress in the description of heavy-quarkonium production in 2->2 processes at next-to-leading order in the factorization framework of nonrelativistic quantum chromodynamics. Specifically, we consider the production of…

高能物理 - 唯象学 · 物理学 2009-11-11 Bernd A. Kniehl

We study inclusive Lambda hyperon production in pp collisions at BNL RHIC, with just one transversely polarized proton. We show that the measurement of the spin transfer between the initial proton and the produced Lambda is sensitive to the…

高能物理 - 唯象学 · 物理学 2009-10-31 D. de Florian , J. Soffer , M. Stratmann , W. Vogelsang