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Bose-Einstein correlations in hadron-pairs from lepto-production on nuclei ranging from hydrogen to xenon

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Organization
Project
HERMES
Abstract
Bose-Einstein correlations of like-sign charged hadrons produced in deep-inelastic electron and positron scattering are studied in the HERMES experiment using nuclear targets of H-1, H-2, He-3, He-4, N, Ne, Kr, and Xe. A Gaussian approach is used to parametrize a two-particle correlation function determined from events with at least two charged hadrons of the same sign charge. This correlation function is compared to two different empirical distributions that do not include the Bose-Einstein correlations. One distribution is derived from unlike-sign hadron pairs, and the second is derived from mixing like-sign pairs from different events. The extraction procedure used simulations incorporating the experimental setup in order to correct the results for spectrometer acceptance effects, and was tested using the distribution of unlike-sign hadron pairs. Clear signals of Bose-Einstein correlations for all target nuclei without a significant variation with the nuclear target mass are found. Also, no evidence for a dependence on the invariant mass W of the photon-nucleon system is found when the results are compared to those of previous experiments.
Keywords
FRAGMENTATION, ENVIRONMENT, ANNIHILATION, NEUTRINO, INTERFEROMETRY, MULTIPLE PRODUCTION, INTERFERENCE, IDENTICAL PARTICLES, DEEP-INELASTIC SCATTERING, HADRONIZATION

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Citation

Please use this url to cite or link to this publication:

Chicago
Airapetian, A, N Akopov, Z Akopov, EC Aschenauer, W Augustyniak, R Avakian, A Avetissian, et al. 2015. “Bose-Einstein Correlations in Hadron-pairs from Lepto-production on Nuclei Ranging from Hydrogen to Xenon.” European Physical Journal C 75 (8).
APA
Airapetian, A., Akopov, N., Akopov, Z., Aschenauer, E., Augustyniak, W., Avakian, R., Avetissian, A., et al. (2015). Bose-Einstein correlations in hadron-pairs from lepto-production on nuclei ranging from hydrogen to xenon. EUROPEAN PHYSICAL JOURNAL C, 75(8).
Vancouver
1.
Airapetian A, Akopov N, Akopov Z, Aschenauer E, Augustyniak W, Avakian R, et al. Bose-Einstein correlations in hadron-pairs from lepto-production on nuclei ranging from hydrogen to xenon. EUROPEAN PHYSICAL JOURNAL C. 2015;75(8).
MLA
Airapetian, A, N Akopov, Z Akopov, et al. “Bose-Einstein Correlations in Hadron-pairs from Lepto-production on Nuclei Ranging from Hydrogen to Xenon.” EUROPEAN PHYSICAL JOURNAL C 75.8 (2015): n. pag. Print.
@article{7120762,
  abstract     = {Bose-Einstein correlations of like-sign charged hadrons produced in deep-inelastic electron and positron scattering are studied in the HERMES experiment using nuclear targets of H-1, H-2, He-3, He-4, N, Ne, Kr, and Xe. A Gaussian approach is used to parametrize a two-particle correlation function determined from events with at least two charged hadrons of the same sign charge. This correlation function is compared to two different empirical distributions that do not include the Bose-Einstein correlations. One distribution is derived from unlike-sign hadron pairs, and the second is derived from mixing like-sign pairs from different events. The extraction procedure used simulations incorporating the experimental setup in order to correct the results for spectrometer acceptance effects, and was tested using the distribution of unlike-sign hadron pairs. Clear signals of Bose-Einstein correlations for all target nuclei without a significant variation with the nuclear target mass are found. Also, no evidence for a dependence on the invariant mass W of the photon-nucleon system is found when the results are compared to those of previous experiments.},
  articleno    = {361},
  author       = {Airapetian, A and Akopov, N and Akopov, Z and Aschenauer, EC and Augustyniak, W and Avakian, R and Avetissian, A and Avetisyan, E and Belostotski, S and Bianchi, N and Blok, HP and Borissov, A and Bryzgalov, V and Burns, J and Capiluppi, M and Capitani, GP and Cisbani, E and Ciullo, G and Contalbrigo, M and Dalpiaz, PF and Deconinck, W and De Leo, R and De Sanctis, E and Diefenthaler, M and Di Nezza, P and Duren, M and Elbakian, G and Ellinghaus, F and Etzelmuller, E and Fabbri, R and Fantoni, A and Felawka, L and Frullani, S and Gapienko, G and Gapienko, V and Garcia, JG and Garibaldi, F and Gavrilov, G and Gharibyan, V and Giordano, F and Gliske, S and Hartig, M and Hasch, D and Holler, Y and Hristova, I and Imazu, Y and Ivanilov, A and Jackson, HE and Joosten, S and Kaiser, R and Karyan, G and Keri, T and Kinney, E and Kisselev, A and Korotkov, V and Kozlov, V and Kravchenko, P and Krivokhijine, VG and Lagamba, L and Lapikas, L and Lehmann, I and Lenisa, P and Ruiz, AL and Lorenzon, W and Lu, XG and Ma, BQ and Mahon, D and Makins, NCR and Mao, Y and Marianski, B and de la Ossa, AM and Marukyan, H and Miyachi, Y and Movsisyan, A and Murray, M and Mussgiller, A and Nappi, E and Naryshkin, Y and Nass, A and Negodaev, M and Nowak, WD and Pappalardo, LL and Perez-Benito, R and Petrosyan, A and Reimer, PE and Reolon, AR and Riedl, C and Rith, K and Rosner, G and Rostomyan, A and Rubin, J and Ryckbosch, Dirk and Salomatin, Y and Schafer, A and Schnell, G and Seitz, B and Shibata, TA and Shutov, V and Stahl, M and Stancari, M and Statera, M and Steijger, JJM and Taroian, S and Terkulov, A and Truty, R and Trzcinski, A and Tytgat, Michael and Van Haarlem, Y and Van Hulse, C and Veretennikov, D and Vikhrov, V and Vilardi, I and Wang, S and Yaschenko, S and Ye, Z and Yen, S and Zihlmann, B and Zupranski, P},
  issn         = {1434-6044},
  journal      = {EUROPEAN PHYSICAL JOURNAL C},
  language     = {eng},
  number       = {8},
  pages        = {9},
  title        = {Bose-Einstein correlations in hadron-pairs from lepto-production on nuclei ranging from hydrogen to xenon},
  url          = {http://dx.doi.org/10.1140/epjc/s10052-015-3566-7},
  volume       = {75},
  year         = {2015},
}

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