Aditya Nath Mishra

@cucet.cuchd.in

Assistant Professor
Chandigarh University



           

https://researchid.co/amishra0

RESEARCH, TEACHING, or OTHER INTERESTS

Nuclear and High Energy Physics, Artificial Intelligence, Physics and Astronomy

466

Scopus Publications

Scopus Publications

  • Exploring the QGP phase above the deconfinement temperature in pp and A − A collisions at LHC energies
    Aditya Nath Mishra, Guy Paić, C. Pajares, R.P. Scharenberg, and B.K. Srivastava
    Elsevier BV

  • K*(892)± resonance production in Pb-Pb collisions at sNN =5.02 TeV
    S. Acharya, D. Adamová, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S. U. Ahn, I. Ahuja, A. Akindinov,et al.
    American Physical Society (APS)

  • Measurement of the fraction of jet longitudinal momentum carried by Λc+ baryons in pp collisions
    S. Acharya, D. Adamová, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S. Ahn, I. Ahuja,et al.
    American Physical Society (APS)
    Recent measurements of charm-baryon production in hadronic collisions have questioned the universality of charm-quark fragmentation across different collision systems. In this work the fragmentation of charm quarks into charm baryons is probed, by presenting the first measurement of the longitudinal jet momentum fraction carried by $\\Lambda_{\\rm c}^{+}$ baryons, $z^{\\mathrm{ch}}_\\mathrm{||}$, in hadronic collisions. The results are obtained in proton-proton (pp) collisions at $\\sqrt{s}=13$ TeV at the LHC, with $\\Lambda_{\\rm c}^{+}$ baryons and charged (track-based) jets reconstructed in the transverse momentum intervals of $3 \\leq p_{\\rm T}^{\\Lambda_{\\rm c}^{+}}<15$ GeV/$c$ and $7 \\leq p_{\\rm T}^{\\rm jet\\;ch}<15$ GeV/$c$, respectively. The $z^{\\mathrm{ch}}_\\mathrm{||}$ distribution is compared to a measurement of ${\\rm D}^0$-tagged charged jets in pp collisions as well as to PYTHIA 8 simulations. The data hints that the fragmentation of charm quarks into charm baryons is softer with respect to charm mesons, in the measured kinematic interval, as predicted by hadronisation models which include colour correlations beyond leading-colour in the string formation.

  • Modification of charged-particle jets in event-shape engineered Pb–Pb collisions at s<inf>NN</inf>=5.02 TeV
    S. Acharya, D. Adamová, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S.U. Ahn, I. Ahuja, A. Akindinov,et al.
    Elsevier BV

  • Skewness and kurtosis of mean transverse momentum fluctuations at the LHC energies
    S. Acharya, D. Adamová, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S.U. Ahn, I. Ahuja, A. Akindinov,et al.
    Elsevier BV

  • Pseudorapidity dependence of anisotropic flow and its decorrelations using long-range multiparticle correlations in Pb–Pb and Xe–Xe collisions
    S. Acharya, D. Adamová, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S.U. Ahn, I. Ahuja,et al.
    Elsevier BV

  • Equation of State of Quark–Gluon Matter in the Clustering-of-Color-Sources Approach
    Aditya Nath Mishra, Guy Paić, Carlos Vales Pajares, Rolf P. Scharenberg, and B. K. Srivastava
    MDPI AG
    In the first few microseconds after the Big Bang, the hot dense matter was in the form of quark–gluon plasma consisting of free quarks and gluons. By colliding heavy nuclei at RHIC and LHC at a velocity close to the speed of light, we were able to recreate primordial matter and observe that matter after expansion and cooling. In the present work, we have analyzed the transverse-momentum spectra of charged particles in high-multiplicity pp collisions at LHC energies s= 5.02 and 13 TeV, published by the ALICE Collaboration, using the Color-String Percolation Model. For heavy ions, Pb–Pb at sNN= 2.76 and 5.02 TeV along with Xe–Xe at sNN= 5.44 TeV have been analyzed. The initial temperature was extracted both in low- and high-multiplicity events in pp collisions. For A−A collisions, the temperature was obtained as a function of centrality. A universal scaling in the temperature from pp and A−A collisions was obtained when multiplicity was scaled by the transverse interaction area. For the higher-multiplicity events in pp collisions at s= 5.02 and 13 TeV, the initial temperature was above the universal hadronization temperature and was consistent with the creation of deconfined matter. From the measured energy density ε and the temperature, the dimensionless quantity ε/T4 was obtained, to obtain the degree of freedom of the deconfined matter.

  • ALICE luminosity determination for Pb-Pb collisions at √ s <sup>NN</sup>= 5.02 TeV
    S. Acharya, D. Adamová, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S.U. Ahn, I. Ahuja,et al.
    IOP Publishing
    Abstract Luminosity determination within the ALICE experiment is based on the measurement, in van der Meer scans, of the cross sections for visible processes involving one or more detectors (visible cross sections). In 2015 and 2018, the Large Hadron Collider provided Pb–Pb collisions at a centre-of-mass energy per nucleon pair of √s NN = 5.02 TeV. Two visible cross sections, associated with particle detection in the Zero Degree Calorimeter (ZDC) and in the V0 detector, were measured in a van der Meer scan. This article describes the experimental set-up and the analysis procedure, and presents the measurement results. The analysis involves a comprehensive study of beam-related effects and an improved fitting procedure, compared to previous ALICE studies, for the extraction of the visible cross section. The resulting uncertainty of both the ZDC-based and the V0-based luminosity measurement for the full sample is 2.5%. The inelastic cross section for hadronic interactions in Pb–Pb collisions at √s NN = 5.02 TeV, obtained by efficiency correction of the V0-based visible cross section, was measured to be 7.67 ± 0.25 b, in agreement with predictions using the Glauber model.

  • Femtoscopic correlations of identical charged pions and kaons in pp collisions at s =13 TeV with event-shape selection
    S. Acharya, D. Adamová, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S. U. Ahn, I. Ahuja, A. Akindinov,et al.
    American Physical Society (APS)

  • Measurements of inclusive J/ψ production at midrapidity and forward rapidity in Pb–Pb collisions at s<inf>NN</inf> = 5.02 TeV
    S. Acharya, D. Adamová, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S.U. Ahn, I. Ahuja,et al.
    Elsevier BV

  • Measurement of the radius dependence of charged-particle jet suppression in Pb–Pb collisions at s<inf>NN</inf>=5.02TeV
    S. Acharya, D. Adamová, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S.U. Ahn, I. Ahuja,et al.
    Elsevier BV

  • ψ (2S) Suppression in Pb-Pb Collisions at the LHC
    S. Acharya, D. Adamová, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S. U. Ahn, I. Ahuja,et al.
    American Physical Society (APS)

  • Charged-particle production as a function of the relative transverse activity classifier in pp, p–Pb, and Pb–Pb collisions at the LHC
    , S. Acharya, D. Adamová, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S. U. Ahn, I. Ahuja,et al.
    Springer Science and Business Media LLC
    Abstract Measurements of charged-particle production in pp, p–Pb, and Pb–Pb collisions in the toward, away, and transverse regions with the ALICE detector are discussed. These regions are defined event-by-event relative to the azimuthal direction of the charged trigger particle, which is the reconstructed particle with the largest transverse momentum $$ \\left({p}_{\\textrm{T}}^{\\textrm{trig}}\\right) $$ p T trig in the range 8 &lt;$$ {p}_{\\textrm{T}}^{\\textrm{trig}} $$ p T trig &lt; 15 GeV/c. The toward and away regions contain the primary and recoil jets, respectively; both regions are accompanied by the underlying event (UE). In contrast, the transverse region perpendicular to the direction of the trigger particle is dominated by the so-called UE dynamics, and includes also contributions from initial- and final-state radiation. The relative transverse activity classifier, $$ {R}_{\\textrm{T}}={N}_{\\textrm{ch}}^{\\textrm{T}}/\\left\\langle {N}_{\\textrm{ch}}^{\\textrm{T}}\\right\\rangle $$ R T = N ch T / N ch T , is used to group events according to their UE activity, where $$ {N}_{\\textrm{ch}}^{\\textrm{T}} $$ N ch T is the charged-particle multiplicity per event in the transverse region and $$ \\left\\langle {N}_{\\textrm{ch}}^{\\textrm{T}}\\right\\rangle $$ N ch T is the mean value over the whole analysed sample. The energy dependence of the RT distributions in pp collisions at $$ \\sqrt{s} $$ s = 2.76, 5.02, 7, and 13 TeV is reported, exploring the Koba-Nielsen-Olesen (KNO) scaling properties of the multiplicity distributions. The first measurements of charged-particle pT spectra as a function of RT in the three azimuthal regions in pp, p–Pb, and Pb–Pb collisions at $$ \\sqrt{s_{\\textrm{NN}}} $$ s NN = 5.02 TeV are also reported. Data are compared with predictions obtained from the event generators PYTHIA 8 and EPOS LHC. This set of measurements is expected to contribute to the understanding of the origin of collective-like effects in small collision systems (pp and p–Pb).

  • System-size dependence of the hadronic rescattering effect at energies available at the CERN Large Hadron Collider
    S. Acharya, D. Adamová, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S. U. Ahn, I. Ahuja, A. Akindinov,et al.
    American Physical Society (APS)
    The first measurements of $\\mathrm{K^{*}(892)^{0}}$ resonance production as a function of charged-particle multiplicity in Xe$-$Xe collisions at $\\sqrt{s_{\\mathrm{NN}}}=$ 5.44 TeV and pp collisions at $\\sqrt{s}=$ 5.02 TeV using the ALICE detector are presented. The resonance is reconstructed at midrapidity ($|y|<0.5$) using the hadronic decay channel $\\mathrm{K^{*0}} \\rightarrow \\mathrm{K^{\\pm} \\pi^{\\mp}}$. Measurements of transverse-momentum integrated yield, mean transverse-momentum, nuclear modification factor of $\\mathrm{K^{*0}}$, and yield ratios of resonance to stable hadron ($\\mathrm{K^{*0}}$/K) are compared across different collision systems (pp, p$-$Pb, Xe$-$Xe, and Pb$-$Pb) at similar collision energies to investigate how the production of $\\mathrm{K^{*0}}$ resonances depends on the size of the system formed in these collisions. The hadronic rescattering effect is found to be independent of the size of colliding systems and mainly driven by the produced charged-particle multiplicity, which is a proxy of the volume of produced matter at the chemical freeze-out. In addition, the production yields of $\\mathrm{K^{*0}}$ in Xe$-$Xe collisions are utilized to constrain the dependence of the kinetic freeze-out temperature on the system size using the hadron resonance gas in partial chemical equilibrium (HRG-PCE) model.

  • Measurement of the low-energy antitriton inelastic cross section
    S. Acharya, D. Adamová, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S.U. Ahn, I. Ahuja,et al.
    Elsevier BV

  • Exclusive and dissociative J/ψ photoproduction, and exclusive dimuon production, in p-Pb collisions at sNN =8.16 TeV
    S. Acharya, D. Adamová, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S. U. Ahn, I. Ahuja,et al.
    American Physical Society (APS)
    The ALICE Collaboration reports three measurements in ultra-peripheral proton$-$lead collisions at forward rapidity. The exclusive two-photon process \\ggmm and the exclusive photoproduction of J/$\\psi$ are studied. J/$\\psi$ photoproduction with proton dissociation is measured for the first time at a hadron collider. The cross section for the two-photon process of dimuons in the invariant mass range from 1 to 2.5 GeV/$c^2$ agrees with leading order quantum electrodynamics calculations. The exclusive and dissociative cross sections for J/$\\psi$ photoproductions are measured for photon$-$proton centre-of-mass energies from 27 to 57 GeV. They are in good agreement with HERA results.

  • Study of flavor dependence of the baryon-to-meson ratio in proton-proton collisions at s =13 TeV
    S. Acharya, D. Adamová, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S. U. Ahn, I. Ahuja, A. Akindinov,et al.
    American Physical Society (APS)
    The production cross sections of ${\\rm D^0}$ and $\\Lambda^+_{\\rm c}$ hadrons originating from beauty-hadron decays (i.e. non-prompt) were measured for the first time at midrapidity ($|y|<0.5$) by the ALICE Collaboration in proton-proton collisions at a center-of-mass energy $\\sqrt{s}=13$ TeV. They are described within uncertainties by perturbative QCD calculations employing the fragmentation fractions of beauty quarks to baryons measured at forward rapidity by the LHCb Collaboration. The ${\\rm b\\overline{b}}$ production cross section per unit of rapidity at midrapidity, estimated from these measurements, is ${\\rm d}\\sigma_{\\rm b\\overline{b}}/{\\rm d}y|_{|y|<0.5} = 83.1 \\pm 3.5 (\\mathrm{stat.}) \\pm 5.4(\\mathrm{syst.}) ^{+12.3}_{-3.2} (\\mathrm{extrap.})\\,\\mu$b. The baryon-to-meson ratios are computed to investigate the hadronization mechanism of beauty quarks. The non-prompt $\\Lambda^+_{\\rm c}/{\\rm D^0}$ production ratio has a similar trend to the one measured for the promptly produced charmed particles and to the p$/\\pi^+$ and $\\Lambda/{\\rm K^0_S}$ ratios, suggesting a similar baryon-formation mechanism among light, strange, charm, and beauty hadrons. The $p_{\\rm T}$-integrated non-prompt $\\Lambda_{\\rm c}/{\\rm D^0}$ ratio is found to be significantly higher than the one measured in e$^+$e$^-$ collisions.

  • Study of the p–p–K <sup>+</sup> and p–p–K <sup>-</sup> dynamics using the femtoscopy technique
    S. Acharya, D. Adamová, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S. U. Ahn, I. Ahuja,et al.
    Springer Science and Business Media LLC
    AbstractThe interactions of kaons (K) and antikaons ($$\\mathrm {\\overline{K}}$$ K ¯ ) with few nucleons (N) were studied so far using kaonic atom data and measurements of kaon production and interaction yields in nuclei. Some details of the three-body KNN and $$\\mathrm {\\overline{K}}$$ K ¯ NN dynamics are still not well understood, mainly due to the overlap with multi-nucleon interactions in nuclei. An alternative method to probe the dynamics of three-body systems with kaons is to study the final state interaction within triplet of particles emitted in pp collisions at the Large Hadron Collider, which are free from effects due to the presence of bound nucleons. This Letter reports the first femtoscopic study of p–p–K$$^+$$ + and p–p–K$$^-$$ - correlations measured in high-multiplicity pp collisions at $$\\sqrt{s}$$ s = 13 TeV by the ALICE Collaboration. The analysis shows that the measured p–p–K$$^+$$ + and p–p–K$$^-$$ - correlation functions can be interpreted in terms of pairwise interactions in the triplets, indicating that the dynamics of such systems is dominated by the two-body interactions without significant contributions from three-body effects or bound states.

  • Measurement of non-prompt D -meson elliptic flow in Pb–Pb collisions at √sNN=5.02 TeV
    , S. Acharya, D. Adamová, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S. U. Ahn, I. Ahuja,et al.
    Springer Science and Business Media LLC
    AbstractThe elliptic flow $$(v_2)$$ ( v 2 ) of $${\\textrm{D}}^{0}$$ D 0 mesons from beauty-hadron decays (non-prompt $${\\textrm{D}}^{0})$$ D 0 ) was measured in midcentral (30–50%) Pb–Pb collisions at a centre-of-mass energy per nucleon pair $$\\sqrt{s_{\\textrm{NN}}} = 5.02$$ s NN = 5.02  TeV with the ALICE detector at the LHC. The $${\\textrm{D}}^{0}$$ D 0 mesons were reconstructed at midrapidity $$(|y|&lt;0.8)$$ ( | y | &lt; 0.8 ) from their hadronic decay $$\\mathrm {D^0 \\rightarrow K^-\\uppi ^+}$$ D 0 → K - π + , in the transverse momentum interval $$2&lt; p_{\\textrm{T}} &lt; 12$$ 2 &lt; p T &lt; 12  GeV/c. The result indicates a positive $$v_2$$ v 2 for non-prompt $${{\\textrm{D}}^{0}}$$ D 0 mesons with a significance of 2.7$$\\sigma $$ σ . The non-prompt $${{\\textrm{D}}^{0}}$$ D 0 -meson $$v_2$$ v 2 is lower than that of prompt non-strange D mesons with 3.2$$\\sigma $$ σ significance in $$2&lt; p_\\textrm{T} &lt; 8~\\textrm{GeV}/c$$ 2 &lt; p T &lt; 8 GeV / c , and compatible with the $$v_2$$ v 2 of beauty-decay electrons. Theoretical calculations of beauty-quark transport in a hydrodynamically expanding medium describe the measurement within uncertainties.

  • Measurements of Groomed-Jet Substructure of Charm Jets Tagged by D^{0} Mesons in Proton-Proton Collisions at sqrt[s]=13  TeV
    S. Acharya, D. Adamová, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S. U. Ahn, I. Ahuja,et al.
    American Physical Society (APS)
    Understanding the role of parton mass and Casimir color factors in the quantum chromodynamics parton shower represents an important step in characterizing the emission properties of heavy quarks. Recent experimental advances in jet substructure techniques have provided the opportunity to isolate and characterize gluon emissions from heavy quarks. In this Letter, the first direct experimental constraint on the charm-quark splitting function is presented, obtained via the measurement of the groomed shared momentum fraction of the first splitting in charm jets, tagged by a reconstructed D^{0} meson. The measurement is made in proton-proton collisions at sqrt[s]=13  TeV, in the low jet transverse-momentum interval of 15≤p_{T}^{jet ch}<30  GeV/c where the emission properties are sensitive to parton mass effects. In addition, the opening angle of the first perturbative emission of the charm quark, as well as the number of perturbative emissions it undergoes, is reported. Comparisons to measurements of an inclusive-jet sample show a steeper splitting function for charm quarks compared with gluons and light quarks. Charm quarks also undergo fewer perturbative emissions in the parton shower, with a reduced probability of large-angle emissions.

  • Measurement of beauty-strange meson production in Pb–Pb collisions at s<inf>NN</inf>=5.02TeV via non-prompt D<inf>s</inf><sup>+</sup> mesons
    S. Acharya, D. Adamová, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S.U. Ahn, I. Ahuja,et al.
    Elsevier BV

  • First measurement of prompt and non-prompt D<sup>⁎+</sup> vector meson spin alignment in pp collisions at s=13 TeV
    S. Acharya, D. Adamová, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S.U. Ahn, I. Ahuja,et al.
    Elsevier BV

  • f<inf>0</inf>(980) production in inelastic pp collisions at s = 5.02 TeV
    S. Acharya, D. Adamová, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S.U. Ahn, I. Ahuja,et al.
    Elsevier BV

  • Photoproduction of low-p<inf>T</inf> J/ψ from peripheral to central Pb–Pb collisions at 5.02 TeV
    S. Acharya, D. Adamová, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S.U. Ahn, I. Ahuja,et al.
    Elsevier BV

  • Elliptic flow of charged particles at midrapidity relative to the spectator plane in Pb–Pb and Xe–Xe collisions
    S. Acharya, D. Adamová, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S.U. Ahn, I. Ahuja,et al.
    Elsevier BV