Journal articles: 'Deep inelastic collisions'

1

Pappalardo, G. "Reaction times in deep inelastic collisions." Nuclear Physics A 488 (October 1988): 395–408. http://dx.doi.org/10.1016/0375-9474(88)90277-1.

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2

Martinez, F. Guzman, and R. Reif. "Incomplete deep-inelastic heavy-ion collisions." Nuclear Physics A 436, no. 2 (April 1985): 294–310. http://dx.doi.org/10.1016/0375-9474(85)90200-3.

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3

Aguiar, C. E., V. C. Barbosa, L. F. Canto, and R. Donangelo. "Fusion, deep-inelastic collisions, and neck formation." Physical Review C 38, no. 1 (July 1, 1988): 541–42. http://dx.doi.org/10.1103/physrevc.38.541.

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4

Shen, W. Q., W. M. Qiao, W. L. Zhan, L. X. Ge, X. T. Zhu, S. Wenqing, G. Linxiao, et al. "Analysis of deep inelastic collisions between16O and27Al." Zeitschrift f�r Physik A Atomic Nuclei 328, no. 2 (June 1987): 219–26. http://dx.doi.org/10.1007/bf01290664.

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5

SKWIRA-CHALOT, I., K. SIWEK-WILCZYŃSKA, and J. WILCZYŃSKI. "IMPACT-PARAMETER DEPENDENCE OF TERNARY AND QUATERNARY RESEPARATION OF HEAVY COLLIDING SYSTEMS." International Journal of Modern Physics E 19, no. 04 (April 2010): 713–17. http://dx.doi.org/10.1142/s021830131001514x.

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Recently, we reported on the observation of a new reaction mechanism of fast collinear breakup of the 197 Au + 197 Au system into three and four fragments of comparable size. Here we present results of an additional analysis that shows that these ternary and quaternary breakup reactions occur at extremely deep-inelastic collisions corresponding to small values of the impact parameter, while more peripheral collisions lead to well known binary deep-inelastic reactions.

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6

SHVEDOV, L., J. BŁOCKI, and J. WILCZYŃSKI. "TESTS OF THE DYNAMICS OF DEEP INELASTIC COLLISIONS." International Journal of Modern Physics E 14, no. 03 (April 2005): 321–25. http://dx.doi.org/10.1142/s0218301305003065.

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A macroscopic dynamical model of deep-inelastic nucleus-nucleus collisions is presented. We solve Rayleigh-Lagrange equations of motion assuming the mechanism of one-body dissipation. Sensitivity of the model to the assumed strength of the dissipative Rayleigh force (relative to the one-body dissipation) is discussed.

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7

JENKOVSZKY, L. L., ANDREA NAGY, S. M. TROSHIN, JOLÁN TURÓCI, and N. E. TYURIN. "CRITICAL PHENOMENA IN DEEP INELASTIC SCATTERING." International Journal of Modern Physics A 25, no. 31 (December 20, 2010): 5667–82. http://dx.doi.org/10.1142/s0217751x10051104.

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Saturation in deep inelastic scattering and deeply virtual Compton scattering is associated with a phase transition between the partonic gas, typical of moderate x and Q2, and partonic fluid appearing at increasing Q2 and decreasing Bjorken x. In this paper we do not intend to propose another parametrization of the structure function; instead we suggest a new insight into the internal structure of the nucleon, as seen in deep inelastic scattering, and its connection with that revealed in high-energy nucleons and heavy-ion collisions.

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8

Krishan, K., S. K. Samaddar, and J. N. De. "Spin dispersion and alignment in deep inelastic collisions." Journal of Physics G: Nuclear Physics 14, no. 11 (November 1988): 1423–30. http://dx.doi.org/10.1088/0305-4616/14/11/013.

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9

Kanayama, N. "Effect of Mass Transfer in Deep Inelastic Collisions." Progress of Theoretical Physics 85, no. 2 (February 1, 1991): 335–42. http://dx.doi.org/10.1143/ptp/85.2.335.

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10

Adamian,1,2, G. G., R. V. Jolos,1, A. K. Nasirov,1,2, and A. I. Muminov2. "Friction coefficient for deep-inelastic heavy-ion collisions." Physical Review C 56, no. 1 (July 1997): 373–80. http://dx.doi.org/10.1103/physrevc.56.373.

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11

Schmidt, R., G. Seifert, and H. O. Lutz. "Cluster-cluster collisions. I. Reaction channels - fusion, deep inelastic and quasielastic collisions." Physics Letters A 158, no. 5 (September 1991): 231–36. http://dx.doi.org/10.1016/0375-9601(91)91005-x.

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12

DI TORO, M., M. COLONNA, C. RIZZO, and V. BARAN. "THE DYNAMICAL DIPOLE RADIATION IN DISSIPATIVE COLLISIONS WITH EXOTIC BEAMS." International Journal of Modern Physics E 17, no. 01 (January 2008): 110–19. http://dx.doi.org/10.1142/s0218301308009604.

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Heavy Ion Collisions (HIC) represent a unique tool to probe the in-medium nuclear interaction in regions away from saturation. In this work we present a selection of reaction observables in dissipative collisions particularly sensitive to the isovector part of the interaction, i.e. to the symmetry term of the nuclear Equation of State (EoS). At low energies the behavior of the symmetry energy around saturation influences dissipation and fragment production mechanisms. We will first discuss the recently observed Dynamical Dipole Radiation, due to a collective neutron-proton oscillation during the charge equilibration in fusion and deep-inelastic collisions. We will review in detail all the main properties, yield, spectrum, damping and angular distributions, revealing important isospin effects. Reactions induced by unstable 132Sn beams appear to be very promising tools to test the sub-saturation Isovector EoS. Predictions are also presented for deep-inelastic and fragmentation collisions induced by neutron rich projectiles. The importance of studying violent collisions with radioactive beams at low and Fermi energies is finally stressed.

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13

ITALIANO, A., and A. STRAZZERI. "DYNAMICAL DISPERSION IN THE FAST-PARTICLE EMISSION AFTER PERIPHERAL HEAVY-ION COLLISIONS." International Journal of Modern Physics E 16, no. 01 (January 2007): 149–68. http://dx.doi.org/10.1142/s0218301307005594.

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The closed-form theoretical model, already employed to successfully describe in a single picture, the nonequilibrium component and the evaporation component of the angular correlation between particles and reaction residues emitted in a peripheral heavy-ion collision, is here revisited. This revised approach, applied to the C-α differential multiplicities for the 16O+58Ni at 6 MeV/A and 16O+48Ti at 8.3 MeV/A deep inelastic collisions, allows to explain more in detail the reaction mechanism of such processes.

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14

Broda, R., W. Królas, B. Fornal, T. Pawłat, K. H. Maier, H. Grawe, M. Schramm, et al. "Dynamical deformation of nuclei participating in deep-inelastic collisions." Acta Physica Hungarica A) Heavy Ion Physics 7, no. 1 (June 1998): 71–82. http://dx.doi.org/10.1007/bf03053695.

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15

Makishima, A., M. Asai, T. Ishii, I. Hossain, M. Ogawa, S. Ichikawa, and M. Ishii. "(νg9/2−2)8+isomersin82Se48and80Ge48populated by deep-inelastic collisions." Physical Review C 59, no. 5 (May 1, 1999): R2331—R2333. http://dx.doi.org/10.1103/physrevc.59.r2331.

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16

Karpov, A. V., and V. V. Saiko. "Study of deep inelastic collisions within multidimensional dynamical model." Physics of Particles and Nuclei Letters 14, no. 6 (November 2017): 817–21. http://dx.doi.org/10.1134/s1547477117060164.

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17

Seifert, G., and R. Schmidt. "FUSION AND DEEP INELASTIC SCATTERING IN C60–C60 COLLISIONS." International Journal of Modern Physics B 06, no. 23n24 (December 1992): 3845–51. http://dx.doi.org/10.1142/s0217979292001912.

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18

Colonna, M., M. Di Toro, A. Guarnera, V. Latora, A. Smerzi, and Zhong Jiquan. "Neck instabilities in deep inelastic collisions at medium energies." Nuclear Physics A 583 (February 1995): 525–30. http://dx.doi.org/10.1016/0375-9474(94)00714-x.

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19

Kachulin, Dmitry, Alexander Dyachenko, and Andrey Gelash. "Interactions of Coherent Structures on the Surface of Deep Water." Fluids 4, no. 2 (May 2, 2019): 83. http://dx.doi.org/10.3390/fluids4020083.

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We numerically investigate pairwise collisions of solitary wave structures on the surface of deep water—breathers. These breathers are spatially localised coherent groups of surface gravity waves which propagate so that their envelopes are stable and demonstrate weak oscillations. We perform numerical simulations of breather mutual collisions by using fully nonlinear equations for the potential flow of ideal incompressible fluid with a free surface written in conformal variables. The breather collisions are inelastic. However, the breathers can still propagate as stable localised wave groups after the interaction. To generate initial conditions in the form of separate breathers we use the reduced model—the Zakharov equation. We present an explicit expression for the four-wave interaction coefficient and third order accuracy formulas to recover physical variables in the Zakharov model. The suggested procedure allows the generation of breathers of controlled phase which propagate stably in the fully nonlinear model, demonstrating only minor radiation of incoherent waves. We perform a detailed study of breather collision dynamics depending on their relative phase. In 2018 Kachulin and Gelash predicted new effects of breather interactions using the Dyachenko–Zakharov equation. Here we show that all these effects can be observed in the fully nonlinear model. Namely, we report that the relative phase controls the process of energy exchange between breathers, level of energy loses, and space positions of breathers after the collision.

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20

SCHMITZ, NORBERT. "NEW RESULTS ON HADRON PRODUCTION IN DEEP-INELASTIC LEPTON SCATTERING." International Journal of Modern Physics A 08, no. 12 (May 10, 1993): 1993–2026. http://dx.doi.org/10.1142/s0217751x93000837.

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New experimental results on the production of hadrons in deep-inelastic lepton–nucleon and lepton–nucleus collisions are reviewed. The following topics are covered: multiplicities, nuclear effects, intermittency, Bose–Einstein correlations, and production of neutral strange particles.

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21

AUDITORE, L., R. BARNÁ, D. DE PASQUALE, A. ITALIANO, A. TRIFIRÓ, M. TRIMARCHI, V. RAUCH, et al. "A SEMI-CLASSICAL ANALYSIS OF THE PROTON SEQUENTIAL EMISSION IN 16O+58Ni DEEP INELASTIC COLLISIONS." International Journal of Modern Physics E 14, no. 02 (March 2005): 239–54. http://dx.doi.org/10.1142/s021830130500293x.

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We study the 16 O +58 Ni deep inelastic reaction by using coincident charged techniques. Inclusive as well as exclusive data of the C , N , and O fully-damped fragments and their associated light charged particles ( p , d , t , and α-particles) have been collected at the IReS Strasbourg VIVITRON Tandem facility. The velocity distributions of the emitted protons and the associated multiplicity polar plots are analyzed by means of a model which describes simultaneously the nonequilibrium and the evaporative (equilibrated) components of a deep inelastic reaction mechanism. Estimates on polarization phenomena as well as the associated "decay times" of the reaction have been obtained. The hypothesis of a new "fan effect" is proposed for the proton sequential emission in the deep inelastic scattering of 16 O +58 Ni at 8.25 MeV/nucleon.

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22

Yan, Tung-Mow, and Sidney D. Drell. "The parton model and its applications." International Journal of Modern Physics A 29, no. 30 (December 8, 2014): 1430071. http://dx.doi.org/10.1142/s0217751x14300713.

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This is a review of the program we started in 1968 to understand and generalize Bjorken scaling and Feynman's parton model in a canonical quantum field theory. It is shown that the parton model proposed for deep inelastic electron scatterings can be derived if a transverse momentum cutoff is imposed on all particles in the theory so that the impulse approximation holds. The deep inelastic electron–positron annihilation into a nucleon plus anything else is related by the crossing symmetry of quantum field theory to the deep inelastic electron–nucleon scattering. We have investigated the implication of crossing symmetry and found that the structure functions satisfy a scaling behavior analogous to the Bjorken limit for deep inelastic electron scattering. We then find that massive lepton pair production in collisions of two high energy hadrons can be treated by the parton model with an interesting scaling behavior for the differential cross-sections. This turns out to be the first example of a class of hard processes involving two initial hadrons.

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23

Zagrebaev, V. I. "Semiclassical theory of direct and deep inelastic heavy ion collisions." Annals of Physics 197, no. 1 (January 1990): 33–93. http://dx.doi.org/10.1016/0003-4916(90)90201-x.

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24

Bonasera, Aldo, and Silvana P. Angius. "A macroscopic approach to deep-inelastic collisions and asymmetric fission." Physics Letters B 168, no. 1-2 (February 1986): 35–38. http://dx.doi.org/10.1016/0370-2693(86)91455-3.

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25

Strutinsky, V. M. "Energy and angular correlations in heavy-ion deep inelastic collisions." Nuclear Physics A 572, no. 1 (May 1994): 181–90. http://dx.doi.org/10.1016/0375-9474(94)90429-4.

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26

McKemmish, Laura K., and Jonathan Tennyson. "General mathematical formulation of scattering processes in atom–diatomic collisions in the RmatReact methodology." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 377, no. 2154 (August 5, 2019): 20180409. http://dx.doi.org/10.1098/rsta.2018.0409.

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Accurately modelling cold and ultracold reactive collisions occurring over deep potential wells, such as D + + H 2 → H + + HD , requires the development of new theoretical and computational methodologies. One potentially useful framework is the R -matrix method adopted widely for electron–molecule collisions which has more recently been applied to non-reactive heavy-particle collisions such as Ar–Ar. The existing treatment of non-reactive elastic and inelastic scattering needs to be substantially extended to enable modelling of reactive collisions: this is the subject of this paper. Herein, we develop the general mathematical formulation for non-reactive elastic and inelastic scattering, photoassociation, photodissociation, charge exchange and reactive scattering using the R -matrix method. Of particular note is that the inner region, of central importance to calculable R -matrix methodologies, must be finite in all scattering coordinates rather than a single scattering coordinate as for non-reactive scattering. This article is part of a discussion meeting issue ‘Advances in hydrogen molecular ions: H 3 + , H 5 + and beyond’.

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27

Mäntysaari, Heikki. "Theoretical developments on the initial state in relativistic particle collisions." EPJ Web of Conferences 296 (2024): 01019. http://dx.doi.org/10.1051/epjconf/202429601019.

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We discuss recent progress towards developing accurate initial state descriptions for heavy ion collisions focusing on weak coupling based approaches, that enable one to constrain the high-energy structure of nuclei from deep inelastic scattering or proton-nucleus collisions. We review recent developments to determine the event-by-event fluctuating nuclear geometry, to describe gluon saturation phenomena at next-to-leading order accuracy, and to include longitudinal dynamics to the initial state descriptions.

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28

STASTO, ANNA M. "HIGH ENERGY LIMIT IN QCD." Modern Physics Letters A 26, no. 09 (March 21, 2011): 603–23. http://dx.doi.org/10.1142/s0217732311035511.

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We briefly review some selected topics in the small x physics. In particular, we discuss the progress in the problem related to the resummation at small x and the parton saturation phenomena. Finally we discuss some phenomenological applications to deep inelastic scattering, hadron and heavy ion collisions.

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29

DI TORO, M., M. COLONNA, V. GRECO, G. FERINI, C. RIZZO, J. RIZZO, V. BARAN, et al. "CONSTRAINING THE SYMMETRY ENERGY: A JOURNEY IN THE ISOSPIN PHYSICS FROM COULOMB BARRIER TO DECONFINEMENT." International Journal of Modern Physics E 17, no. 09 (October 2008): 1799–814. http://dx.doi.org/10.1142/s0218301308010799.

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Heavy Ion Collisions (HIC) represent a unique tool to probe the in-medium nuclear interaction in regions away from saturation. In this work we present a selection of reaction observables in dissipative collisions particularly sensitive to the isovector part of the interaction, i.e.to the symmetry term of the nuclear Equation of State (EoS). At low energies the behavior of the symmetry energy around saturation influences dissipation and fragment production mechanisms. We will first discuss the recently observed Dynamical Dipole Radiation, due to a collective neutron-proton oscillation during the charge equilibration in fusion and deep-inelastic collisions. Important Iso - EOS are stressed. Reactions induced by unstable 132 Sn beams appear to be very promising tools to test the sub-saturation Isovector EoS. New Isospin sensitive observables are also presented for deep-inelastic, fragmentation collisions and Isospin equilibration measurements (Imbalance Ratios). The high density symmetry term can be derived from isospin effects on heavy ion reactions at relativistic energies (few AGeV range), that can even allow a "direct" study of the covariant structure of the isovector interaction in the hadron medium. Rather sensitive observables are proposed from collective flows and from pion/kaon production. The possibility of the transition to a mixed hadron-quark phase, at high baryon and isospin density, is finally suggested. Some signatures could come from an expected "neutron trapping" effect. The importance of studying violent collisions with radioactive beams from low to relativistic energies is finally stressed.

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30

Aggarwal, Ritu, and Allen Caldwell. "Kinematic fitting of neutral current events in deep inelastic ep collisions." Journal of Instrumentation 17, no. 09 (September 1, 2022): P09035. http://dx.doi.org/10.1088/1748-0221/17/09/p09035.

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Abstract In this paper we present a technique to reconstruct the scaling variables defining ep deep inelastic scattering by performing a kinematic fit. This reconstruction technique makes use of the full potential of the data collected. It is based on Bayes' Theorem and involves the use of informative priors. The kinematic fit method has been tested using a simulated sample of ep neutral current events at a center of mass energy of 318 GeV with Q 2 > 400 GeV2. In addition to the scaling variables, this method is able to estimate the energy of possible initial state radiation (Eγ ) which otherwise goes undetected. A better resolution than standard electron and double angle techniques in the reconstruction of scaling variables is achieved using a kinematic fit.

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31

Shizuma, T., Z. G. Gan, K. Ogawa, H. Nakada, M. Oshima, Y. Toh, T. Hayakawa, et al. "A new isomer in 136 Ba populated by deep inelastic collisions." European Physical Journal A 20, no. 2 (May 2004): 207–10. http://dx.doi.org/10.1140/epja/i2003-10163-6.

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32

Lips, V., R. Barth, G. Klotz-Engmann, H. Oeschler, Y. Cassagnou, M. Conjeaud, R. Dayras, et al. "Deep inelastic collisions in the systemAr40+232Th at 31 MeV/nucleon." Physical Review C 49, no. 2 (February 1, 1994): 1214–17. http://dx.doi.org/10.1103/physrevc.49.1214.

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33

Baluch, J. J., E. U. Khan, R. Tahseen, I. E. Qureshi, Tabassum Nasir, and Najam ul Hassan. "Study of deep inelastic collisions in the heavy-ion interaction of." Radiation Measurements 41, no. 2 (February 2006): 217–21. http://dx.doi.org/10.1016/j.radmeas.2005.07.022.

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34

Manduchi, C., M. T. Russo Manduchi, G. F. Segato, and G. Tornielli. "Neutron emission in deep inelastic collisions of28Si on64Ni at 170 MeV." Zeitschrift für Physik A Atomic Nuclei 333, no. 2 (June 1989): 183–91. http://dx.doi.org/10.1007/bf01565149.

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35

Terlau, W., M. B�rgel, A. Budzanowski, H. Fuchs, H. Homeyer, G. R�schert, J. Uckert, and R. Vogel. "Incomplete deep-inelastic scattering in20Ne+197Au collisions at 20 MeV/nucleon." Zeitschrift f�r Physik A Atomic Nuclei 330, no. 3 (September 1988): 303–10. http://dx.doi.org/10.1007/bf01294874.

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36

Adloff et al., C. "Diffractive jet production in deep-inelastic $e^+p$ collisions at HERA." European Physical Journal C 20, no. 1 (April 2001): 29–49. http://dx.doi.org/10.1007/s100520100634.

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37

Choudhury, R. K., D. M. Nadkarni, V. S. Ambekar, B. V. Dinesh, A. Saxena, M. S. Samant, D. C. Biswas, and L. M. Pant. "Deep inelastic collisions of32S +27Al reaction at 130 MeV bombarding energy." Pramana 44, no. 2 (February 1995): 177–82. http://dx.doi.org/10.1007/bf02847697.

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38

CHIRILLI, GIOVANNI ANTONIO. "HIGH-ENERGY QCD FACTORIZATION FROM DIS TO pA COLLISIONS." International Journal of Modern Physics: Conference Series 20 (January 2012): 200–207. http://dx.doi.org/10.1142/s2010194512009245.

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The high-energy QCD factorization for Deep Inelastic Scattering and for proton-nucleus collisions using Wilson line formalism and factorization in rapidity is discussed. We show that in DIS the factorization in rapidity reduces to the k T -factorization when the 2-gluon approximation is applied, provided that the composite Wilson line operator is used in the high-energy Operator Product Expansion. We then show that the inclusive forward cross-section in proton-nucleus collisions factorizes in parton distribution functions, fragmentation functions and dipole gluon distribution function at one-loop level.

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39

Yoshida, Satoshi, S. K. Patra, and Noboru Takigawa. "Multi-Neutron and Proton Transfer Reactions in Deep Inelastic Heavy-Ion Collisions." Progress of Theoretical Physics Supplement 124 (1996): 131–34. http://dx.doi.org/10.1143/ptps.124.131.

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40

Fornal, B., R. Broda, W. Królas, T. Pawłat, J. Wrzesiński, D. Bazzacco, D. Fabris, et al. "γ-ray studies of neutron-richN=18,19nuclei produced in deep-inelastic collisions." Physical Review C 55, no. 2 (February 1, 1997): 762–65. http://dx.doi.org/10.1103/physrevc.55.762.

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41

Fröbrich, P., and I. I. Gontchar. "Langevin description of fusion, deep-inelastic collisions and heavy-ion-induced fission." Physics Reports 292, no. 3-4 (January 1998): 131–237. http://dx.doi.org/10.1016/s0370-1573(97)00042-2.

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42

Alexander, G., E. Gotsman, and U. Maor. "Two-photon collisions in deep inelastic lepton-nucleon and lepton-nucleus scattering." Zeitschrift f�r Physik C Particles and Fields 32, no. 3 (September 1986): 383–89. http://dx.doi.org/10.1007/bf01551835.

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43

Takai, H., C. N. Knott, D. F. Winchell, J. X. Saladin, M. S. Kaplan, L. de Faro, R. Aryaeinejad, et al. "Population of high spin states by quasi-elastic and deep inelastic collisions." Physical Review C 38, no. 3 (September 1, 1988): 1247–61. http://dx.doi.org/10.1103/physrevc.38.1247.

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44

Dreyer, U., T. Baier, K. Hencken, and D. Trautmann. "Lepton-pair production from deep inelastic scatteringin peripheral relativistic heavy ion collisions." European Physical Journal C 45, no. 3 (December 21, 2005): 783–95. http://dx.doi.org/10.1140/epjc/s2005-02452-1.

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45

Catara, F., and E. G. Lanza. "Interplay between particle-hole excitation and nucleon transfer in deep-inelastic collisions." Nuclear Physics A 451, no. 2 (March 1986): 299–312. http://dx.doi.org/10.1016/0375-9474(86)90416-1.

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46

Souliotis, G. A. "Probing the Nuclear Equation of State with Peripheral Heavy Ion Collisions at Fermi Energies." HNPS Proceedings 16 (January 1, 2020): 129. http://dx.doi.org/10.12681/hnps.2590.

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A systematic study of quasi-elastic and deep-inelastic collisions at Fermi energies is presented with the aim of obtaining insight into the underlying dynamics and the nuclear equation of state (EOS). Comparisons of experimental heavy-residue data to detailed calculations using the semiclassical microscopic model CoMD (Constrained Molecular Dynamics) are shown. The CoMD code implements an effective interac- tion with a nuclear-matter compressibility of K=200 (soft EOS) or K=380 (stiff EOS) with several forms of the density dependence of the nucleon-nucleon symmetry potential and imposes a constraint in the phase space occupation for each nucleon, restoring the Pauli principle during the collision. Preliminary results from these comparisons point to a soft equation of state (K=200) with a rather stiff density dependence of the isovector part (symmetry energy).

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47

Fasoula, Olga, George A. Souliotis, Stergios Koulouris, Konstantina Palli, Martin Veselsky, Sherry J. Jenello, and Aldo Bonasera. "Momentum Distribution Studies of Projectile Fragments from Peripheral Collisions Below the Fermi Energy." HNPS Advances in Nuclear Physics 29 (May 5, 2023): 38–44. http://dx.doi.org/10.12681/hnpsanp.5089.

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This paper presents our recent studies of multinucleon transfer in peripheral collisions in reactions below the Fermi regime. Our current focus is the study of the mass, angular and momentum distributions of the projectile-like fragments from the reaction of an 86Kr beam at 15 MeV/nucleon with a target of 64Ni. Experimental data from our previous work with the MARS spectrometer at the Cyclotron Institute of Texas A&M University were compared with model calculations. The dynamical stage of the reaction is described with either the Deep-Inelastic Transfer Model (DIT) or with the microscopic Constrained Molecular Dynamics model (CoMD). The de-excitation of the hot projectile-like fragments is performed with the GEMINI model. The momentum distributions are characterized by a quasi-elastic peak and a deep-inelastic peak. Two-body kinematics was employed to extract the total excitation energies of these regions. Through the thorough study of peripheral reactions in the Fermi energy regime we expect to gain valuable information that could lead to the understanding of how the rare isotopes in regions such as the r-process path and the neutron drip line are formed and the reaction mechanism(s) that take place.

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48

Balança, Christian, Yohann Scribano, Jérôme Loreau, François Lique, and Nicole Feautrier. "Inelastic rate coefficients for collisions of N2H+ with H2." Monthly Notices of the Royal Astronomical Society 495, no. 2 (May 20, 2020): 2524–30. http://dx.doi.org/10.1093/mnras/staa1384.

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ABSTRACT N2H+ is one of the first molecular ions observed in the interstellar medium and it is of particular interest to probe the physical conditions of cold molecular clouds. Accurate modelling of the observed lines requires the knowledge of collisional excitation rate coefficients. Thus, we have calculated rate coefficients for the excitation of N2H+ by H2, the most abundant collisional partner. The calculations are based on a new potential energy surface obtained from highly correlated ab initio calculations. This 4D-interaction surface exhibits a very deep well of ≈2530 cm−1 making fully converged scattering calculations very difficult to carry out, when one takes into account the rotational structure of H2. To overcome this difficulty, two approximate approaches, the adiabatic hindered rotor approach (AHR) and the statistical adiabatic channel model, were tested by comparing the results with those obtained from full 4D close-coupling calculations. The AHR treatment, which reduces the scattering calculations to a 2D problem was found to give the best results at all temperatures and even for transitions involving high N2H+ rotational levels. State-to-state rate coefficients between the 26 first N2H+ rotational levels were calculated for temperatures ranging from 5 K up to 500 K. Using a recoupling technique, rate coefficients are obtained among hyperfine transitions.

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Eskola, K. J., H. Honkanen, V. J. Kolhinen, P. V. Ruuskanen, and C. A. Salgado. "Nuclear Parton Distributions in the DGLAP Approach." International Journal of Modern Physics E 12, no. 02 (April 2003): 177–95. http://dx.doi.org/10.1142/s0218301303001259.

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Determination of the nuclear parton distributions within the framework of perturbative QCD, the DGLAP equations in particulars, is discussed. Scale and flavour dependent nuclear effects in the parton distributions are compared with the scale and flavour independent parametrizations of HIJING and of the Hard Probe Collaboration. A comparison with the data from deep inelastic lepton-nucleus scattering and the Drell–Yan process in proton-nucleus collisions is shown.

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50

Heidari, S., B. Rezaei, and G. R. Boroun. "The study of deep inelastic scattering process of electron nucleus at LHeC region." International Journal of Modern Physics E 26, no. 10 (October 2017): 1750067. http://dx.doi.org/10.1142/s0218301317500677.

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The nonlinear behavior in electron–nucleus collisions for nuclei with mass number [Formula: see text] and 265 at very small [Formula: see text] regime [Formula: see text] with low and moderate [Formula: see text] is studied. The charm and bottom heavy quarks contributions to the reduced cross-section and ratio of structure functions [Formula: see text] to [Formula: see text] are investigated by using the Kharzeev–Levin–Nardi phenomenological ansatz at LO and NLO analyses.

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Journal articles on the topic 'Deep inelastic collisions'

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