Measurement of the e^{+}e^{-} Invariant-Mass Distribution in p¯p Collisions at s=1.8 TeV

Abe, F.; Amidei, D.; Apollinari, G.; Ataç, M.; Auchincloss, P.; Baden, A.; Bailey, M. W.; Bamberger, A.; Barnett, B. A.; Barbaro-Galtieri, A.; Barnes, V. E.; Baumann, Thomas; Bedeschi, F.; Behrends, S.; Belforte, S.; Bellettini, G.; Bellinger, J.; Bensinger, J. R.; Beretvas, A.; Berge, J. P.; Bertolucci, S.; Bhadra, S.; Binkley, M.; Blair, R. E.; Blocker, C.; Bolognesi, V.; Booth, A. W.; Boswell, C.; Brandenburg, G.; Brown, D.; Buckley-Geer, E.; Budd, H. S.; Byon, A.; Byrum, K. L.; Campagnari, C.; Campbell, M.; Carey, Robert M.; Carithers, W.; Carlsmith, D.; Carroll, J. T.; Cashmore, R. J.; Cervelli, F.; Chadwick, K.; Chiarelli, G.; Chinowsky, W.; Cihangir, S.; Clark, A.; Connor, D.; Contreras, M.; Cooper, J.; Cordelli, M.; Crane, D.; Curatolo, M.; Day, C.; Dell’Agnello, S.; Dell’Orso, M.; Demortier, L.; Derwent, P. F.; Devlin, T.; DiBitonto, D.; Drucker, R. B.; Elias, J. E.; Ely, R.; Eno, S. C.; Errede, S.; Esposito, B.; Flaugher, B.; Foster, G. W.; Franklin, M.; Freeman, J.; Frisch, H.; Fuess, T. A.; Fukui, Y.; Funayama, Y.; Garfinkel, A. F.; Gauthier, A.; Geer, S.; Giannetti, P.; Giokaris, N.; Giromini, P.; Gladney, L.; Gold, M.; Goulianos, K.; Grassmann, H.; Grosso-Pilcher, C.; Haber, C.; Hahn, S. R.; Handler, R.; Hara, K.; Harris, R. M.; Hauser, J.; Hawk, C.; Hessing, T. L.; Hollebeek, R.; Holloway, L.; Hu, P.; Hubbard, B.; Huffman, B. T.; Hughes, R. E.; Hurst, P.; Huth, J.; Incagli, M.; Ino, T.; Iso, H.; Jensen, H.; Jessop, C. P.; Johnson, R. P.; Joshi, U.; Kadel, R. W.; Kamon, T.; Kanda, S.; Kardelis, D. A.; Karliner, I.; Kearns, E.; Keeble, L.; Kephart, R.; Kesten, P.; Keup, R. M.; Keutelian, H.; Kim, D.; Kim, S.; Kirsch, L.; Kondo, K.; Königsberg, J.; Kovacs, E.; Kuhlmann, S.; Kuns, E.; Laasanen, A. T.; Lamoureux, J. I.; Leone, S.; Li, W.; Liss, T. M.; Lockyer, N. S.; Luchini, C. B.; Maas, P.; Maeshima, K.; Mangano, M.; Marriner, J. P.; Markeloff, R.; Markosky, L. A.; Mattingly, R.; McIntyre, P.; Menzione, A.; Meyer, T. C.; Mikamo, S.; Miller, Michael L.; Mimashi, T.; Miscetti, S.; Mishina, M.; Miyashita, S.; Morita, Y.; Moulding, S.; Muêller, J.; Mukherjee, A.; Nakae, L. F.; Nakano, I.; Nelson, Charles A.; Newman-Holmes, C.; Ng, J. S. T.; Ninomiya, M.; Nodulman, L.; Ogawa, S.; Paoletti, R.; Para, A.; Paré, E.; Patrick, J.; Phillips, T. J.; Plunkett, R.; Pondrom, L.; Proudfoot, J.; Punzi, G.; Quarrie, D. R.; Ragan, K.; Redlinger, G.; Rhoades, J.; Roach, M.; Rimondi, F.; Ristori, L.; Rohaly, T.; Roodman, A.; Sakumoto, W. K.; Sansoni, A.; Sard, R. D.; Savoy-Navarro, A.; Scarpine, V.; Schlabach, P.; Schmidt, E. E.; Schub, M. H.; Schwitters, R. F.; Scribano, A.; Segler, S.; Seiya, Y.; Sekiguchi, M.; Shapiro, M.; Shaw, N. M.; Sheaff, M.; Shochet, M.; Siegrist, J.; Sinervo, P.; Skarha, J.; Sliwa, K.; Smith, D. A.; Snider, F. D.; Song, L.; Denis, R. St.; Stefanini, A.; Sullivan, G. W.; Swartz, R. L.; Takano, Mikio; Tartarelli, G. F.; Takikawa, K.; Tarem, S.; Theriot, D.; Timko, M.; Tipton, P.; Tkaczyk, S.; Tollestrup, A.; Tonnison, J.; Trischuk, W.; Tsay, Y.; Ukegawa, F.; Underwood, D. G.; Vejcik, S.; Vidal, R.; Wagner, R. G.; Wagner, R. L.; Wainer, N.; Walsh, J.; Watts, T.; Webb, R.; Wendt, C.; Wester, W. C.; Westhusing, T.; White, S. N.; Wicklund, A. B.; Williams, H. H.; Winer, B. L.; Yagil, A.; Yamashita, A.; Yasuoka, K.; Yeh, G. P.; Yoh, J.; Yokoyama, Masaru; Yun, J. C.; Zetti, F.

doi:10.1103/physrevlett.67.2418

Cited by 71 publications

(74 citation statements)

References 8 publications

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“…In order to observe multiscale fluctuations, we have assumed a particular hierarchy in the Hamiltonian following the general scenario of a gradual complexification of a collective motion until it reaches the compound nucleus chaotic states. It is in fact the implicit assumption of many simulations such as the extended mean-field approach which takes into account the two-body collisions as a damping mechanism [32,37,38,39,40]. In these cases, a hierarchy of couplings is implicitly assumed, the main ansatz being that cutting this hierarchy at any level leads to an approximate strength which is only slightly modified when the next level is introduced.…”

Section: Critical Discussion Of the Doorway Hierarchy Picturementioning

confidence: 99%

Multiscale fluctuations in the nuclear response

Lacroix

Chomaz

1999

Phys. Rev. C

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The nuclear collective response is investigated in the framework of a doorway picture in which the spreading width of the collective motion is described as a coupling to more and more complex configurations. It is shown that this coupling induces fluctuations of the observed strength. In the case of a hierarchy of overlapping decay channels, we observe Ericson fluctuations at different scales. Methods for extracting these scales and the related lifetimes are discussed. Finally, we show that the coupling of different states at one level of complexity to some common decay channels at the next level, may produce interferencelike patterns in the nuclear response. This quantum effect leads to a new type of fluctuations with a typical width related to the level spacing.

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Section: Critical Discussion Of the Doorway Hierarchy Picturementioning

confidence: 99%

Multiscale fluctuations in the nuclear response

Lacroix

Chomaz

1999

Phys. Rev. C

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“…Given the higher-dimensional nature of L, it is obvious that the consequent effects would be more pronounced at higher energies. In other words, the fractional deviation over the SM expectations would be concentrated more at higher invariant masses M [15], with possibly some nontrivial dependence on the rapidity y as well [16]. For example, composite quarks and electrons have been proposed as a possible explanation for the high-Q 2 anomaly at HERA [17].…”

Section: Jhep01(2006)027mentioning

confidence: 99%

Acid Vapor Treatment of Fatty Acid Salt LB Films–Evidence for Conservation of the Lamellar Structure–

Saito¹,

Tabe²,

Saito³

et al. 1990

Jpn. J. Appl. Phys.

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We consider lepton pair production at a hadron collider in a class of effective theories with the relevant operators being four-fermion contact interaction. Despite the nonrenormalizable nature of the interaction, we explicitly demonstrate that calculating QCD corrections is both possible and meaningful. Calculating the corrections for various differential distributions, we show that these can be substantial and significantly different from those within the SM. Furthermore, the corrections have a very distinctive flavour dependence. And finally, the scale dependence of the cross sections are greatly reduced once the NLO corrections are taken into account.

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“…From the analysis of the data, it is by and large established that standard statistical theory could not account for the observed large multiplicity of the prescission neutrons. This discrepency is, nowadays, believed to be of dynamical origin, and thus led to enormous activities to understand theoretically the dynamics of fission process [11][12][13][14][15][16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

“…There have been different approaches to study this problem. One approach is to solve the Langevin equations for the collective variables [11,12,14,15]. In this approach, one assumes the collective variable as the 'Brownian particle' interacting stochastically with large number of internal degrees of freedom constituting the surrounding 'bath'.…”

Section: Introductionmentioning

confidence: 99%

Dynamical study of fission process and estimation of prescission neutron multiplicity

et al. 1998

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The dynamics of fission has been studied by solving Euler-Lagrange equations with dissipation generated through one and two body nuclear friction. The average kinetic energies of the fission fragments, prescission neutron multiplicities and the mean energies of the prescission neutrons have been calculated and compared with experimental values and they agree quite well. A single value of friction coefficient has been used to reproduce the experimental data for both symmetric and asymmetric splitting of the fissioning systems over a wide range of masses and excitation energies. It has been observed that a stronger friction is required in the saddle to scission region as compared to that in the ground state to saddle region.

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Measurement of the e^{+}e^{-} Invariant-Mass Distribution in p¯p Collisions at s=1.8 TeV

Cited by 71 publications

References 8 publications

Multiscale fluctuations in the nuclear response

Multiscale fluctuations in the nuclear response

Acid Vapor Treatment of Fatty Acid Salt LB Films–Evidence for Conservation of the Lamellar Structure–

Dynamical study of fission process and estimation of prescission neutron multiplicity

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