Results 91 to 100 of about 211,027 (308)

Mass splitting and spin alignment for $$\phi $$ ϕ mesons in a magnetic field in NJL model

European Physical Journal C: Particles and Fields
Based on the Nambu–Jona–Lasinio (NJL) model, we develop a framework for calculating the spin alignment of vector mesons and applied it to study $$\phi $$ ϕ mesons in a magnetic field.
Xin-Li Sheng, Shu-Yun Yang, Yao-Lin Zou, Defu Hou   +3 more
doaj   +1 more source

Potential analysis of holographic Schwinger effect in the magnetized background

European Physical Journal C: Particles and Fields, 2020
We study the holographic Schwinger effect with magnetic field at RHIC and LHC energies by using the AdS/CFT correspondence. We consider both weak and strong magnetic field cases with $$B\ll T^2$$ B≪T2 and $$B\gg T^2$$ B≫T2 solutions respectively. Firstly,
Zhou-Run Zhu, De-fu Hou, Xun Chen
doaj   +1 more source

New physics in the angular distribution of B c − $$ {B}_c^{-} $$ → J/ψ(→ μ + μ − )τ − (→ π − ν τ ) ν ¯ τ $$ {\overline{\nu}}_{\tau } $$ decay

Journal of High Energy Physics, 2021
In B c − $$ {B}_c^{-} $$ → J/ψ(→ μ + μ − )τ − ν ¯ τ $$ {\overline{\nu}}_{\tau } $$ decay, the three-momentum p τ − $$ {\boldsymbol{p}}_{\tau^{-}} $$ cannot be determined accurately due to the decay products of τ − inevitably include an undetected ν τ ...
Quan-Yi Hu, Xin-Qiang Li, Xiao-Long Mu, Ya-Dong Yang, Dong-Hui Zheng   +4 more
doaj   +1 more source

Measurement of Branching Fractions and Rate Asymmetries in the Rare Decays B -> K(*) l+ l- [PDF]

, 2012
In a sample of 471 million BB events collected with the BABAR detector at the PEP-II e+e- collider we study the rare decays B -> K(*) l+ l-, where l+ l- is either e+e- or mu+mu-. We report results on partial branching fractions and isospin asymmetries in
A. J. S.,, Adametz, A., Adye, T., Ahmed, H., Akar, S., Alam, M. S., Albert, J., Andreassen, R., Angelini, C., Anulli, F., Arnaud, N., Asgeirsson, D. J., Aston, D., Atmacan, H., Ayad, R., Baldini Ferroli, R., Band, H. R., Banerjee, S., Bard, D. J., Barlow, R. J., Bartoldus, R., Batignani, G., Behera, P. K., Behn, E., Bellis, M., Ben Haim, E., Benitez, J. F., Bernard, D., Bernlochner, F. U., Bettarini, S., Bettoni, D., Bevan, A. J., Bhuyan, B., Bianchi, F., Biasini, M., Biassoni, P., Blinov, V. E., Bloom, P. C., Bomben, M., Bondioli, M., Bonneaud, G. R., Bozzi, C., Brau, J., Briand, H., Brown, D. N., Brown, D. N., Bunger, C., Burchat, P. R., Buzykaev, A. R., Calabrese, R., Calcaterra, A., Calderini, G., Campagnari, C., Carpinelli, M., Cartaro, C., Casarosa, G., Cenci, R., Cervelli, A., Chao, D. S., Chauveau, J., Chavez, C. A., Cheaib, R., Chen, C., Cheng, C. H., Cibinetto, G., Clark, P. J., Cochran, J., Coleman, J. P., Contri, R., Convery, M. R., Cowan, G., Cowan, R., Cremaldi, L., D. W. G.,, Dallapiccola, C., Dasu, S., Dauncey, P. D., Davier, M., Davis, C. L., Denig, A. G., Derkach, D., Diberder, F. L., Dorfan, J., Druzhinin, V. P., Dubois Felsmann, G. P., Dujmic, D., Dunwoodie, W., E. M. T.,, Ebert, M., Echenard, B., Edwards, A. J., Eigen, G., Eisner, A. M., Emery, S., Ernst, J. A., Faccini, R., Feltresi, E., Ferrarotto, F., Ferroni, F., Field, R. C., Finocchiaro, G., Fioravanti, E., Flood, K. T., Ford, W. T., Forti, F., Frey, R., Fritsch, M., Fry, J. R., Fulsom, B. G., G. H., De, Gabareen, A. M., Gabathuler, E., Gagliardi, N., Gamba, D., Gary, J. W., Garzia, I., Gaspero, M., Gaz, A., Gershon, T. J., Gioi, L. L., Giorgi, M. A., Godang, R., Golubev, V. B., Gorodeisky, R., Gradl, W., Graham, M. T., Grauges, E., Grenier, P., Griessinger, K., Gritsan, A. V., Grosdidier, G., Grunberg, O., Guido, E., Guo, Z. J., Guttman, N., H. H. F.,, Hafner, A., Hamilton, B., Hamon, O., Harrison, P. F., Hartmann, T., Hast, C., Hearty, C., Hitlin, D. G., Hong, T. M., Honscheid, K., Huard, Z., Hutchcroft, D. E., Innes, W. R., Izen, J. M., Jackson, G., Jawahery, A., Jessop, C. P., Kass, R., Kelsey, M. H., Kerth, L. T., Khan, A., Kim, P., King, G. J., Kirkby, D., Koch, H., Kocian, M. L., Kolomensky, Y. G., Kovalskyi, D., Kowalewski, R., Kravchenko, E. A., Kroeger, R., Kroseberg, J., Lacker, H. M., Lafferty, G. D., Lanceri, L., Lange, D. J., Lankford, A. J., Latham, T. E., Leddig, T., Lee, C. L., Lees, J. P., Leruste, P., Lewczuk, M. J., Lewis, P., Lindemann, D., Lindquist, B., Liu, F., Lockman, W. S., Lodovico, F. D., Long, O., LoSecco, J. M., Lou, X. C., Lueck, T., Luitz, S., Lund, P., Luppi, E., Lusiani, A., Luth, V., Lutz, A. M., Lynch, G., Lynch, H. L., MacFarlane, D. B., Malaescu, B., Mallik, U., Mandelkern, M., Manoni, E., Marchiori, G., Margoni, Martino, Martinelli, M., Martinez Vidal, F., Martinez, A. J., Mattison, T. S., Mazzoni, M. A., McKenna, J. A., Meadows, B. T., Meyer, W. T., Miyashita, T. S., Monge, M. R., Monorchio, D., Morandin, M., Morii, M., Muller, D. R., Munerato, M., Nardo, G. D., Nauenberg, U., Neal, H., Negrini, M., Nelson, S., Neri, N., Nguyen, X., Nugent, I. M., Oberhof, B., Ocariz, J., Olaiya, E. O., Olsen, J., Ongmongkolkul, P., Onorato, G., Onuchin, A. P., Oyanguren, A., Pacetti, S., Palano, A., Palombo, F., Pan, Y., Paoloni, E., Park, W., Passaggio, S., Patel, P. M., Patrignani, C., Patteri, P., Payne, D. J., Pegna, D. L., Peimer, D. R., Perez, A., Perl, M., Peruzzi, I. M., Piccolo, M., Piemontese, L., Piredda, G., Playfer, S., Poireau, V., Porter, F. C., Posocco, M., Prasad, V., Prell, S., Prencipe, E., Prepost, R., Pulliam, T., Purohit, M. V., Rakitin, A. Y., Rama, M., Randle Conde, A., Ratcliff, B. N., Raven, G., Richman, J. D., Ritchie, J. L., Rizzo, G., Roberts, D. A., Robertson, S. H., Robutti, E., Roney, J. M., Roodman, A., Rossi, A., Rotondo, M., Roudeau, P., Rubin, A. E., Ruland, A. M., S. L., Wu, Sacco, R., Salnikov, A. A., Sangro, R. d., Santoro, V., Schindler, R. H., Schroder, H., Schroeder, T., Schubert, K. R., Schumm, B. A., Schune, M. H., Schwierz, R., Schwitters, R. F., Sciacca, C., Sciolla, G., Seiden, A., Sekula, S. J., Serednyakov, S. I., Sevilla, M. F., Sigamani, M., Simard, M., Simi, Gabriele, Simonetto, Franco, Sinev, N. B., Sitt, S., Skovpen, Y. I., Smith, J. G., Snyder, A., Sobie, R. J., Soffer, A., Sokoloff, M. D., Solodov, E. P., Sonnek, P., Spaan, B., Spanier, S. M., Stocchi, A., Stracka, S., Stroili, Roberto, Strom, D., Stugu, B., Su, D., Sullivan, M. K., Summers, D. J., Sun, L., Taras, P., Tasneem, N., Telnov, A. V., Tico, J. G., Tisserand, V., Todyshev, K. Y., Toki, W. H., Torrence, E., Touramanis, C., Uwer, U., Va'vra, J., Vasseur, G., Verderi, M., Vetere, M. L., Vitale, L., Vitug, G. M., Voss, C., Wagner, A. P., Wagner, S. R., Waldi, R., Walsh, J. J., Wang, W. F., West, C. A., White, R. M., Wilson, F. F., Wilson, J. R., Wisniewski, W. J., Wittgen, M., Wormser, G., Wray, B. C., Wright, D. H., Wright, D. M., Wulsin, H. W., Yeche, C., Young, C. C., Yushkov, A. N., Zallo, A., Ziegler, V.   +363 more
core   +6 more sources

Heavy leptons, lepton mixing, and nonconservation of lepton-type number

Physics Letters B, 1977
Abstract Introducing a new weak doublet of heavy leptons, one is led to a mixing of the various lepton states with respect to the weak interaction and subsequently to the violation of electron and muon number conservation (e.g., the decay μ →e γ ). The new charged lepton can only decay via such a mixing and is therefore relatively long-lived ( τ >10
openaire   +1 more source

Atmospheric lepton fluxes [PDF]

EPJ Web of Conferences, 2015
This review of atmospheric muons and neutrinos emphasizes the high energy range relevant for backgrounds to high-energy neutrinos of astrophysical origin. After a brief historical introduction, the main distinguishing features of atmospheric $ _ $ and $ _e$ are discussed, along with the implications of the muon charge ratio for the $ _ /\bar _ $
openaire   +3 more sources

Probing lepton universality with (semi)-leptonic B decays [PDF]

SciPost Physics Proceedings, 2019
The most recent measurements of the observables R_{D^{(*)}} R D
Giovanni Banelli, Robert Fleischer, Ruben Jaarsma, Gilberto Tetlalmatzi-Xolocotzi   +3 more
openaire   +3 more sources

Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in √s = 13 TeV pp collisions with the ATLAS detector [PDF]

, 2019
A search for supersymmetry through the pair production of electroweakinos with mass splittings near the electroweak scale and decaying via on-shell W and Z bosons is presented for a three-lepton fi ...
Atlas Collaboration
semanticscholar   +1 more source

Constraints on scalar leptoquarks from lepton and kaon physics [PDF]

Journal of High Energy Physics, 2019
We present a comprehensive analysis of low-energy signals of hypothetical scalar leptoquark interactions in lepton and kaon transitions. We derive the most general effective four-fermion Lagrangian induced by tree-level scalar leptoquark exchange and ...
R. Mandal, A. Pich
semanticscholar   +1 more source

Niche Differences in Coexisting Species: Ecological Insights Into the Role of Activity Patterns, Space Use, and Environmental Preferences

Ecology and Evolution, Volume 15, Issue 8, August 2025.
This work provides novel insights into the spatial and temporal niche differences of two model species. Our findings reveal that microhabitat preferences and activity patterns are important factors of coexistence, complementing thermal and hydric regulation traits previously reported.
Carolina Reyes‐Puig, Urtzi Enriquez‐Urzelai, Neftalí Sillero, Antigoni Kaliontzopoulou   +3 more
wiley   +1 more source