Academic literature on the topic 'Particles (Nuclear physics) Scattering amplitude (Nuclear physics)'

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Journal articles on the topic "Particles (Nuclear physics) Scattering amplitude (Nuclear physics)"

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FALBO-KENKEL, M. K., and F. MANSOURI. "'t HOOFT'S SCATTERING AMPLITUDE FROM CHERN–SIMONS–WITTEN GRAVITY IN 2+1 DIMENSIONS." Modern Physics Letters A 06, no. 35 (November 20, 1991): 3255–60. http://dx.doi.org/10.1142/s0217732391003754.

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By using canonical phase space variables different from those associated with individual particles, we couple the Chern–Simons–Witten gravity to point-like sources. The resulting theory provides an alternative to the usual test particle approximation and yields 't Hooft's scattering amplitude in the limit of two very massive slowly moving particles.
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SCHWENK, ACHIM. "NUCLEAR INTERACTIONS FROM THE RENORMALIZATION GROUP." International Journal of Modern Physics B 20, no. 19 (July 30, 2006): 2724–29. http://dx.doi.org/10.1142/s0217979206035229.

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We discuss how the renormalization group can be used to derive effective nuclear interactions. Starting from the model-independent low-momentum interaction V low k, we successively integrate out high-lying particle and hole states from momentum shells around the Fermi surface as proposed by Shankar. The renormalization group approach allows for a systematic calculation of induced interactions and yields similar contributions to the scattering amplitude as the two-body parquet equations. We review results for the 1 S 0 and 3 P 2 superfluid pairing gaps as well as the spin dependence of effective interactions in neutron matter. Implications for the cooling of neutron stars are discussed.
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Berezhnoy, Yu A., and V. P. Mikhailyuk. "Scattering of 1.37 GeVα-particles on12C nuclei and the effectiveα-α amplitude." Zeitschrift für Physik A: Hadrons and Nuclei 355, no. 1 (December 1996): 31–34. http://dx.doi.org/10.1007/s002180050074.

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Zhen-Qiang, Tan, Lin Zhong-Jin, Yan Pang-Ning, and Wu Chong-En. "An integral formula for calculating the Glauber multiple scattering amplitude of composite particles." Journal of Physics G: Nuclear and Particle Physics 16, no. 11 (November 1, 1990): 1697–711. http://dx.doi.org/10.1088/0954-3899/16/11/018.

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Yu-shun, Zhang, Hu Su-fen, Yang Chao-yun, and Liu Ji-feng. "A new method for calculating the Glauber multiple scattering amplitude of composite particles." Journal of Physics G: Nuclear and Particle Physics 23, no. 11 (November 1, 1997): 1551–62. http://dx.doi.org/10.1088/0954-3899/23/11/005.

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LIN, ZHONG-HENG. "ONE-LOOP CLOSED STRING 5-PARTICLE FERMION AMPLITUDES IN THE COVARIANT FORMULATION." International Journal of Modern Physics A 05, no. 02 (January 20, 1990): 299–327. http://dx.doi.org/10.1142/s0217751x90000131.

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The closed superstring 2 fermion-3 boson and 4 fermion-1 boson scattering amplitudes at one-loop level are calculated in the covariant formulation. We use the method of Atick and Sen and find that it can be applied to 5 particles without any major difficulties. We discuss the symmetry properties of the amplitudes as a check of their correctness. From the residue of the relevant correlator for 4 fermion-1 boson scattering at the appropriate pole, we obtain the 2 fermion-2 boson amplitude which agrees with the amplitude calculated in the light-cone gauge in the Green-Schwarz formulation. The calculation requires some new θ-function identities and Fierz transformations in ten dimensions which we also prove and discuss.
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KOGAN, YA I., and K. G. SELIVANOV. "ON THE INTERACTIONS OF CHARGED PARTICLES WITH COSMIC STRING." International Journal of Modern Physics A 06, no. 01 (January 10, 1991): 59–72. http://dx.doi.org/10.1142/s0217751x91000058.

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We discuss the scattering of charged particles on cosmic string. The cases of the small and large (comparing the string scale) momentum of particles are considered. Anisotropical amplitude which describes the action of the string’s “magnetic” field on the particles is obtained. Physical applications are briefly discussed.
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GEORGIOU, GEORGE, and GEORGE SAVVIDY. "PRODUCTION OF NON-ABELIAN TENSOR GAUGE BOSONS TREE AMPLITUDES AND BCFW RECURSION RELATION." International Journal of Modern Physics A 26, no. 15 (June 20, 2011): 2537–55. http://dx.doi.org/10.1142/s0217751x1105350x.

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The BCFW recursion relation is used to calculate tree-level scattering amplitudes in generalized Yang–Mills theory and, in particular, four-particle amplitudes for the production rate of non-Abelian tensor gauge bosons of arbitrary high spin in the fusion of two gluons. The consistency of the calculations in different kinematical channels is fulfilled when all dimensionless cubic coupling constants between vector bosons and high spin non-Abelian tensor gauge bosons are equal to the Yang–Mills coupling constant. We derive a generalization of the Parke–Taylor formula in the case of production of two tensor gauge bosons of spin-s and N gluons (jets). The expression is holomorphic in the spinor variables of the scattered particles, exactly as the MHV gluon amplitude is, and reduces to the gluonic MHV amplitude when s = 1.
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HELAYËL-NETO, J. A., S. RAJPOOT, and A. WILLIAM SMITH. "ASYMPTOTIC BEHAVIOR OF PHYSICAL AMPLITUDES IN A FINITE FIELD THEORY." International Journal of Modern Physics A 05, no. 10 (May 20, 1990): 1861–80. http://dx.doi.org/10.1142/s0217751x90000878.

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Using the N=4 super Yang-Mills theory softly broken by supersymmetric N=1 mass terms for the matter superfields, we compute the one-loop chiral+chiral→antichiral+antichiral scattering amplitude directly in superspace. By suitable choices of the mass parameters, one can endow the model with a hierarchy of light and heavy particles, and the decoupling of the heavy sector from the light-light physical amplitude is studied. We also analyze the high energy limit of the cross section for a two physical scalar scattering and find a (logs) behavior, which then respects the Froissart bound.
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D’HOKER, ERIC, and D. H. PHONG. "CHIRAL SUPERSTRING AMPLITUDES AND THE GSO PROJECTION." Modern Physics Letters A 04, no. 14 (July 20, 1989): 1335–42. http://dx.doi.org/10.1142/s0217732389001520.

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Chirally symmetric amplitudes for the scattering of bosonic massless particles at fixed spin structures are shown to split into the absolute values squared of a chiral amplitude at fixed internal momenta. Chiral amplitudes are holomorphic in supermoduli and chiral polarization tensors, meromorphic in vertex operators insertion points. They may be recast in terms of intrinsic complex supergeometric objects. Amplitudes of opposite chirality may be endowed with independent spin structures so that the GSO projection can be enforced to construct the superstring.
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Dissertations / Theses on the topic "Particles (Nuclear physics) Scattering amplitude (Nuclear physics)"

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Shrestha, Manoj. "Partial-wave Analysis of πN Scattering to ηN and KΛ Final States and Extraction of Resonance Parameters from Unitary, Multichannel Fits." Kent State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=kent1353095268.

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Younus, Imran Souder Paul. "First observation of the parity violating asymmetry in Moller scattering." Related Electronic Resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2003. http://wwwlib.umi.com/cr/syr/main.

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Emam, Waled S. Souder Paul. "A search for new physics at the TeV scale via a precise measurement of the weak mixing angle in Moller scattering." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2004. http://wwwlib.umi.com/cr/syr/main.

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Alvarez, del Castillo Astiazarán Ricardo Ignacio. "The Kemmer equation for pion-nucleus scattering." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=59958.

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A relativistic equation, known as the Kemmer-Duffin-Petiau (KDP) equation, for spin-0 particles is used to study low energy pion-nucleus scattering. This equation is linear and the optical potential is completely local in contrast to the quadratic Klein-Gordon equation which contains gradient terms in the p-wave part of the potential when applied to pion-nucleus scattering. Specifically, if we use an almost minimal coupling scheme (scalar and vector potentials), then this equation is equivalent to the Klein-Gordon equation with a Kisslinger potential and an effective Ericson-Ericson-Lorentz-Lorenz parameter $ lambda$ = 3. Experimentally, the $ lambda$ parameter is subject to uncertainty and no agreement has been reached about its value, though it must be greater than 1.6. The full KDP optical potential is obtained by taking the impulse terms from $ pi$-N scattering data and folding this with the nuclear density and then adding a true absorption contribution which is quadratic in the densities. It is shown that good agreement can be obtained for elastic scattering on light nuclei at low energies.
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Patel, Sunil. "A study of heavy quark production and semi-leptonic decay in deep-inelastic ep scattering at high energies." Thesis, University of Oxford, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670155.

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Towell, Rusty Shane. "Measurement of the antiquark flavor asymmetry in the nucleon sea /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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Ford, John Marshall. "An analysis of pion-nucleon scattering." Diss., Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/54326.

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A phase-shift analysis of elastic pion-nucleon scattering data g from threshold to a pion kinetic energy of 1100 MeV was performed. The resulting partial-wave amplitudes were investigated in the complex energy plane, and the resonance states with their associated zeros and poles were determined. Particular emphasis was given on elucidating the nature of the P₁₁ partial wave. The phase-shift analysis consisted of both energy-independent and energy-dependent analyses. The energy dependent partial waves were parametrized as a coupled channel K-matrix whose elements are polynomials in energy plus an explicit pole term. A complete description of the investigation and the experimental data used are included as is a description of the theoretical models used for interpretation of the results.
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Adera, Gashaw Bekele. "Strange particle production via the weak interaction." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/2777.

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Thesis (MSc (Physics))--University of Stellenbosch, 2009.
In this thesis a general relativistic formalism for neutrino-induced weak production of strange particles is presented. In our formalism it is shown that the differential cross section is constructed as a contraction between a leptonic tensor and a hadronic tensor. The electroweak theory of Glashow, Salam and Weinberg is used to calculate the leptonic tensor exactly. The hadronic current is determined from the newly derived general form of the weak hadronic current which is expressed in terms of eighteen invariant amplitudes that parametrize the hadron vertex. The Born diagram is used to approximate the unknown hadronic vertex and the numerical calculation is made by evaluating the tree diagrams in terms of standard weak form factors and the strong coupling constants in the framework of the Cabibbo theory and SU(3) symmetry. The investigation is made for charged current reactions in terms of the angular distribution of the differential cross section with respect to the outgoing kaon angle and the results are discussed.
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Gilmore, Jason R. "Search for contact interactions in deep inelastic scattering." Connect to this title online, 2002. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu983824358.

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Thesis (Ph. D.)--Ohio State University, 2002.
Title from first page of PDF file. Document formatted into pages; contains xx, 143 p.; also contains graphics. Includes abstract and vita. Advisor: L. Stanley Durkin, Dept. of Physics. Includes bibliographical references (p. 137-143).
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Shoresh, Noam. "Applications of chiral perturbation theory /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/9676.

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Books on the topic "Particles (Nuclear physics) Scattering amplitude (Nuclear physics)"

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1926-, Barut A. O., ed. Polarization dynamics in nuclear and particle physics: Proceedings of the 2nd Adriatico Research Conference, Trieste, Italy, 7-10 January 1992. Singapore: World Scientific, 1993.

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Tripathi, Ram K. Extraction of in-medium nucleon-nucleon amplitude from experiment. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1998.

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1945-, Zheng Chuguang, ed. Li san xi tong dong li xue yan bian guo cheng de ke li qun ping heng mo ni. Beijing: Ke xue chu ban she, 2008.

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B, Frois, Hughes Vernon W, and De Groot N, eds. The spin structure of the nucleon: International School of Nucleon Structure, 1st Course, Erice, Italy, 3-10 August 1995. Singapore: World Scientific, 1997.

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G, Roberts R. The structure of the proton: Deep inelastic scattering. Cambridge [England]: Cambridge University Press, 1990.

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Europhysics, Study Conference on Electroweak Effects at High Energies (1st 1983 Erice Italy). Electroweak effects at high energies. New York: Plenum Press, 1985.

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Australian Science and Technology Council. Small country, big science: A report to the Prime Minister on Australian participation in major international accelerator and beam facilities. Canberra: Australian Govt. Pub. Service, 1990.

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Warsaw Symposium on Elementary Particle Physics. (11th 1988 Kazimierz, Puławy, Poland). New theories in physics: Proceedings of the XI Warsaw Symposium on Elementary Particle Physics : 23-27 May, 1988, Kazimierz, Poland. Edited by Ajduk Z, Pokorski Stefan 1942-, and Trautman A. Singapore: World Scientific, 1989.

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International Symposium on Lepton and Photon Interactions at High Energies (12th 1985 Kyoto, Japan). Proceedings of the 1985 International Symposium on Lepton and Photon Interactions at High Energies: August 19-24, 1985, Kyoto. Edited by Konuma Michiji, Takahashi Kasuke, International Union of Pure and Applied Physics., Nihon Gakujutsu Kaigi, and Nihon Butsuri Gakkai. Kyoto, Japan: Organizing Committee, the 1985 International Symposium on Lepton and Photon Interactions at High Energies, 1986.

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International Symposium on Lepton and Photon Interactions at High Energies. (14th 1989 Stanford, California). Proceedings of the 1989 International Symposium on Lepton and Photon Interactions at High Energies, August 7-12, 1989, Stanford University. Edited by Riordan Michael 1946-, International Union of Pure and Applied Physics., and Stanford Linear Accelerator Center. Singapore: World Scientific, 1990.

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Book chapters on the topic "Particles (Nuclear physics) Scattering amplitude (Nuclear physics)"

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Sitenko, Aleksei G. "Separable Representation of the Scattering Amplitude." In Springer Series in Nuclear and Particle Physics, 201–17. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84034-0_12.

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Sitenko, Aleksei G. "Scattering of Spin-Possessing Particles." In Springer Series in Nuclear and Particle Physics, 242–83. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84034-0_14.

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Eliseev, S. M. "Deep inelastic scattering of leptons on nuclei: Hadron formation, cumulative particles production." In Refereed and selected contributions from International Conference on Quark Nuclear Physics, 433–35. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-09712-0_69.

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Touchette, Hugo. "Temperature Fluctuations and Mixtures of Equilibrium States in the Canonical Ensemble." In Nonextensive Entropy. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780195159769.003.0014.

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It has been suggested recently that "Q-exponential" distributions, which form the basis of Tsallis' nonextensive thermostatistical formalism, may be viewed as mixtures of exponential (Gibbs) distributions characterized by a fluctuating inverse temperature. In this chapter, we revisit this idea in connection with a detailed microscopic calculation of the energy and temperature fluctuations present in a finite vessel of perfect gas thermally coupled to a heat bath. We find that the probability density related to the inverse temperature of the gas has a form similar to a x<sup>2</sup> density, and that the "mixed" Gibbs distribution inferred from this density is non-Gibbsian. These findings are compared with those obtained by a number of researchers who worked on mixtures of Gibbsian distributions in the context of velocity difference measurements in turbulent fluids as well as secondary distributions in nuclear scattering experiments…. Most, if not all, textbooks on thermodynamics and statistical physics define temperature as being a quantity which, contrary to other thermodynamic observables like energy or pressure, does not admit fluctuations. Because of that, it is somewhat surprising to see papers with the expression "temperature fluctuations" in their titles appearing from time to time in serious scientific journals on subjects as various as particle physics and fluid dynamics (see, e.g., Ashkenazi and Steinberg [3], Ching [9], Chiu et al. [10], and Stodolsky [24]). Indeed, how can the temperature of a system, however small, fluctuate if one defines it "as equal to the temperature of a very large heat reservoir with which the system is in equilibrium and in thermal contact" [18]? Also, in the case of the reservoir, how can temperature be a fluctuating parameter if its definition requires one to assume the thermodynamic limit, in other words, to assume that the system acting as a reservoir is composed of an infinite number of particles or degrees of freedom? Presumably, the thermodynamic limit should rule out any fluctuations of thermodynamic quantities like the mean energy or the pressure, so that if temperature is related to these quantities, how can it fluctuate?
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Conference papers on the topic "Particles (Nuclear physics) Scattering amplitude (Nuclear physics)"

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Hiller, John R. "Methods for the nonperturbative approximation of form factors and scattering amplitudes." In The seventh conference on the intersection of particles and nuclear physics. AIP, 2000. http://dx.doi.org/10.1063/1.1345282.

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Ossola, Giovanni, and Marvin L. Marshak. "New Method for One-Loop Scattering Amplitudes in Field Theory." In 10TH CONFERENCE ON THE INTERSECTIONS OF PARTICLE AND NUCLEAR PHYSICS. AIP, 2009. http://dx.doi.org/10.1063/1.3293782.

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Mintz, Stephan L. "The Weak Production of Λ Particles in Muon and Tau Scattering From Protons." In INTERSECTIONS OF PARTICLE AND NUCLEAR PHYSICS: 8th Conference CIPANP2003. AIP, 2004. http://dx.doi.org/10.1063/1.1664269.

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Chen, Zhang. "Deeply virtual Compton scattering and skewed parton distribution." In The seventh conference on the intersection of particles and nuclear physics. AIP, 2000. http://dx.doi.org/10.1063/1.1345308.

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Kaiser, Ralf. "A polarized electron-nucleon scattering experiment at TESLA." In The seventh conference on the intersection of particles and nuclear physics. AIP, 2000. http://dx.doi.org/10.1063/1.1345381.

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Woods, M. "SLAC E158: An experiment to measure parity violation in Moller scattering." In The seventh conference on the intersection of particles and nuclear physics. AIP, 2000. http://dx.doi.org/10.1063/1.1345393.

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Ito, Takeyasu M. "Parity violating electron scattering on the proton and deuteron at backward angles." In The seventh conference on the intersection of particles and nuclear physics. AIP, 2000. http://dx.doi.org/10.1063/1.1345394.

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Leksanov, A. "A new measurement of the energy dependence of nuclear transparency for large momentum transfer [sup 12]C(p,2p) scattering." In The seventh conference on the intersection of particles and nuclear physics. AIP, 2000. http://dx.doi.org/10.1063/1.1345262.

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Sammarruca, Francesca. "Testing the spin-dependence of the in-medium nucleon-nucleon interaction using polarization observables in (p⃗,p⃗[sup ʹ]) scattering at intermediate energies." In The seventh conference on the intersection of particles and nuclear physics. AIP, 2000. http://dx.doi.org/10.1063/1.1345296.

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Lombardo, I., L. Campajola, E. Rosato, G. Spadaccini, and M. Vigilante. "Search for α-states in [sup 13]C via elastic resonant scattering of α particles on [sup 9]Be." In MULTIDISCIPLINARY APPLICATIONS OF NUCLEAR PHYSICS WITH ION BEAMS (ION BEAMS '12). AIP, 2013. http://dx.doi.org/10.1063/1.4812914.

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