Showing 201 - 220 results of 265 for search '"quark"', query time: 0.07s Refine Results
  1. 201

    Dependence of net-hyperon production at mid-rapidity on beam energy and its implication on baryon number carrier by Tsang Chun Yuen

    Published 2025-01-01
    “…The conventional picture of baryon number is that each valence quark inside a baryon carries 1/3 unit of baryon number. …”
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  2. 202

    The impact of data from future lepton colliders on light hadrons fragmentation functions by Bin Zhou, Jun Gao

    Published 2025-02-01
    “…Abstract In this work, we study the constraining power of future lepton colliders on fragmentation functions (FFs) to light charged hadrons from quarks and gluon in the framework of QCD collinear factorization. …”
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  3. 203

    Electromagnetic Radiations from Heavy Ion Collision by Payal Mohanty, Sabyasachi Ghosh, Sukanya Mitra

    Published 2013-01-01
    “…In the calculations of interferometry involving dilepton pairs, it is argued that the nonmonotonic variation of HBT radii with invariant mass of the lepton pairs signals the formation of quark gluon plasma in HIC. Elliptic flow (v2) of dilepton is also studied at sNN=2.76 TeV for 30–40% centrality using the (2+1)d hydrodynamical model.…”
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  4. 204

    Collisional and Radiative Energy Loss in QED and QCD Plasmas by Javad Sheibani, Abolfazl Mirjalili, Kurosh Javidan, Reza Gharaei, Shahin Atashbar Tehrani

    Published 2020-10-01
    “…We have introduced the final results of collisional and radiation energy loss for an electrically charged particle in a QED plasma, as well as a quark in a QCD plasma. The suppression due to radiation is presented using the Landau-Pomeranchuk-Migdal effect. …”
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  5. 205

    One-dimensional QCD at finite density and its ’t Hooft-Veneziano limit by O. Borisenko, V. Chelnokov, S. Voloshyn, P. Yefanov

    Published 2025-01-01
    “…Calculated are the partition function, free energy, the Polyakov loop expectation values, baryon density, quark condensate, meson and baryon correlation functions. …”
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  6. 206

    Left-Right model with radiative double seesaw mechanism by Paulo Areyuna C., A. E. Cárcamo Hernández, Vishnudath K. N., Sergey Kovalenko, Roman Pasechnik, Iván Schmidt

    Published 2024-12-01
    “…In addition, the masses of the charged fermions of the Standard Model (SM) that are lighter than the top quark are generated at one loop level and the residual ℤ 2 symmetry ensures the stability of the Dark Matter (DM) candidate of the model. …”
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  7. 207

    Heavy $$K^*$$ K ∗ mesons with open charm from $$KD^{(*)}D^*$$ K D ( ∗ ) D ∗ interactions by Xiu-Lei Ren, K. P. Khemchandani, A. Martínez Torres

    Published 2024-12-01
    “…Abstract In view of the recent discovery of $$T_{cc}$$ T cc , which can be described as a $$DD^*$$ D D ∗ molecular state, we perform a study of the $$KDD^*$$ K D D ∗ system, and its extension to studying $$KD^*D^*$$ K D ∗ D ∗ , where $$D^*D^*$$ D ∗ D ∗ is bound as a spin 1 $$T_{cc}$$ T cc -like state, to search for the possible existence of exotic mesons with the open flavors ccs being part of their quark configuration. Considering the additional attractive interactions present in the KD and $$KD^*$$ K D ∗ subsystems, where the states $$D^*_{s0}(2317)$$ D s 0 ∗ ( 2317 ) and $$D_{s1}(2460)$$ D s 1 ( 2460 ) are generated, we solve the Faddeev equations considering the fixed-center approximation for the mentioned three-body systems and find the existence of two doubly charmed $$K^*$$ K ∗ -like mesons, $$K_{cc}^*(4309)$$ K cc ∗ ( 4309 ) and $$K_{cc}^*(4449)$$ K cc ∗ ( 4449 ) , with quantum numbers $$I(J^P)=1/2\,(1^-)$$ I ( J P ) = 1 / 2 ( 1 - ) . …”
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  8. 208

    One-loop impact factors for heavy quarkonium production: S-wave case by Maxim A. Nefedov

    Published 2024-12-01
    “…Abstract With the aim to extend the study of inclusive heavy quarkonium production at forward rapidities with the resummation of high partonic center-of-momentum-energy logarithms beyond Leading Logarithmic Approximation (LLA), the explicit analytic results for one-loop corrections to the following impact factors had been obtained: γR → Q Q ¯ S 1 0 8 $$ Q\overline{Q}\ \left[{^1S}_0^{\left[8\right]}\right] $$ , gR → Q Q ¯ S 1 0 1 $$ Q\overline{Q}\ \left[{^1S}_0^{\left[1\right]}\right] $$ , gR → Q Q ¯ S 1 0 8 $$ Q\overline{Q}\ \left[{^1S}_0^{\left[8\right]}\right] $$ and gR → Q Q ¯ S 3 1 8 $$ Q\overline{Q}\ \left[{^3S}_1^{\left[8\right]}\right] $$ , with R being the Reggeized gluon and Q is the heavy quark. The computation is done in the framework of Lipatov’s gauge-invariant EFT for Multi-Regge processes in QCD with the tilted-Wilson-line regularisation for rapidity divergences. …”
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  9. 209

    Study of 1D Strange Charmed Meson Family Using HQET by Pallavi Gupta, A. Upadhyay

    Published 2016-01-01
    “…In this paper, using the heavy quark effective theory, we state that assigning Ds1⁎(2860) as the mixing of 13D1-23S1 states is rather a better justification to its observed experimental values than a pure state. …”
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  10. 210

    Search for baryon junctions in e+A collisions at the electron ion collider by Niseem Magdy, Abhay Deshpande, Roy Lacey, Wenliang Li, Prithwish Tribedy, Zhangbu Xu

    Published 2024-12-01
    “…Abstract Constituent quarks in a nucleon are the essential elements in the standard “quark model” associated with the electric charge, spin, mass, and baryon number of a nucleon. …”
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  11. 211

    Schwinger-Type Pair Production in Non-SUSY AdS/CFT by Udit Narayan Chowdhury

    Published 2023-01-01
    “…The dual geometry we consider is asymptotically AdS and is effectively parametrized by two parameters, u0 and −5/2<δ≤0, both of which can be related to the effective mass of quark/antiquark for non-supersymmetric theories. …”
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  12. 212

    Estimation of the freezeout parameters using strange hadrons with changing multiplicity in pp collisions at 7 TeV by Hilal Ahmad, Hailong Zhu, Fu-Hu Liu, M. Waqas, Murad Badshah, Refka Ghodhbani

    Published 2025-01-01
    “…We explore the spectra of transverse momenta of hadrons with strange quark content (KS0, ϕ, Λ+Λ̄, Ξ̄+Ξ̄+, and Ω−+Ω̄+) produced in proton–proton collisions at sNN = 7 TeV. …”
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  13. 213

    Lévy walk of pions in heavy-ion collisions by Dániel Kincses, Márton Nagy, Máté Csanád

    Published 2025-02-01
    “…In high-energy collisions of heavy nuclei, the strongly interacting Quark Gluon Plasma is created, which, similarly to the early Universe, undergoes a rapid expansion and transition back to hadronic matter. …”
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  14. 214

    J/ψ photoproduction and polarization in peripheral Pb−Pb collisions with ALICE by Mallick Dukhishyam

    Published 2025-01-01
    “…In addition, they can constrain the theory describing photon-induced reactions in A–A collisions with nuclear overlap, including possible interactions of the measured probes with the formed and fast expanding Quark-Gluon Plasma. In order to confirm the photoproduction origin of the very low pT J/ψ yield excess, polarization measurements represent a suitable observable. …”
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  15. 215

    A Guide to Light-Cone PDFs from Lattice QCD: An Overview of Approaches, Techniques, and Results by Krzysztof Cichy, Martha Constantinou

    Published 2019-01-01
    “…In addition to a thorough discussion of quasidistributions, we consider other approaches: hadronic tensor, auxiliary quark methods, pseudodistributions, OPE without OPE, and good lattice cross-sections. …”
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  16. 216

    Study of b⟶c Induced B¯∗⟶Vℓν¯ℓ Decays by Qin Chang, Xiao-Lin Wang, Jie Zhu, Xiao-Nan Li

    Published 2020-01-01
    “…In this paper, we investigate the tree-dominated B¯u,d,s,c∗⟶Vℓ−ν¯ℓ (V=Du,d∗,Ds∗,J/ψ and ℓ=e,μ,τ) decays in the Standard Model with the relevant form factors obtained in the light-front quark model. These decays involve much more helicity states relative to the corresponding B¯∗⟶Pℓ−ν¯ℓ and B¯⟶Vℓ−ν¯ℓ decays, and moreover, the contribution of longitudinal polarization mode (V meson) is relatively small, ~30%, compared with the corresponding B meson decays. …”
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  17. 217

    Effective theory approach to new physics with flavour: general framework and a leptoquark example by Marzia Bordone, Oscar Catà, Thorsten Feldmann

    Published 2020-01-01
    “…However, when taking into account the different quark and lepton flavours, the number of free parameters in- creases dramatically, which makes generic studies of the NP flavour structure infeasible. …”
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  18. 218

    Establishment of Reference Norms for Lung Function Parameters of Healthy Sri Lankan Tamils by Mathanki Sooriyakanthan, Savithri Wimalasekera, Sivapalan Kanagasabai

    Published 2019-01-01
    “…Respiratory functions were assessed by a calibrated spirometer (Cosmed Micro Quark, Italy) and Wright compatible peak expiratory flow meter. …”
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  19. 219

    Effective field theory approach to lepton number violating decays K±→ π∓l±l±: short-distance contribution by Yi Liao, Xiao-Dong Ma, Hao-Lin Wang

    Published 2020-01-01
    “…These decays provide information complementary to popular nuclear neutrinoless double-β (0νββ) decay in that they can probe LNV interactions involving heavier quarks and charged leptons. We may call them hadronic 0νββ decays in short, though β refers to all charged leptons. …”
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  20. 220

    Polarization of thermal dilepton radiation by Florian Seck, Bengt Friman, Tetyana Galatyuk, Hendrik van Hees, Ralf Rapp, Enrico Speranza, Jochen Wambach

    Published 2025-02-01
    “…While the low- and high-mass regions exhibit the expected limits of transverse and unpolarized photons, respectively, baryon-driven medium effects in the ρ-meson mass region create a marked longitudinal polarization that transits into a largely unpolarized emission from the quark-gluon plasma, thus providing a sensitive test of microscopic emission processes in QCD matter. …”
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