PRC 2008 ANNUAL INDEX - VOLUMES 77 and 78 Section E

Collaborations | Authors A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Eastman, M.C.

M.C. Eastman and K.S. Krane
Neutron capture cross sections of even-mass tellurium isotopes
PACS: 21.10.-k 25.40.Lw 27.60.+j
Phys. Rev. C 77, 024303 (2008) [abstract]

Eberth, J.

see [Bree,N., Phys. Rev. C 78, 047301 (2008)]

Ebisuzaki, Toshikazu

see [Sonoda,Hidetaka, Phys. Rev. C 77, 035806 (2008)]

Eby, David A.

see [Alford,Mark G., Phys. Rev. C 78, 045802 (2008)]

Eckardt, V.

see [Alt,C., Phys. Rev. C 77, 024903 (2008)]
see [Alt,C., Phys. Rev. C 77, 034906 (2008)]
see [Alt,C., Phys. Rev. C 77, 064908 (2008)]
see [Alt,C., Phys. Rev. C 78, 034914 (2008)]
see [Alt,C., Phys. Rev. C 78, 034918 (2008)]
see [Alt,C., Phys. Rev. C 78, 044907 (2008)]

Eckel, S.

see [Werner,V., Phys. Rev. C 78, R031301 (2008)]

Edelhoff, R.

see [Boeglin,W.U., Phys. Rev. C 78, 054001 (2008)]

Eden, T.

see [Blok,H.P., Phys. Rev. C 78, 045202 (2008)]
see [Huber,G.M., Phys. Rev. C 78, 045203 (2008)]

Edgecock, R.

see [Catanesi,M.G., Phys. Rev. C 77, 055207 (2008)]

Edwards, W.R.

see [Abelev,B.I., Phys. Rev. C 77, 034910 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 044908 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 054901 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, R061902 (2008)]
see [Abelev,B.I., Phys. Rev. C 78, 044906 (2008)]

Eeckhaudt, S.

see [Rigby,S.V., Phys. Rev. C 78, 034304 (2008)]
see [Robinson,A.P., Phys. Rev. C 78, 034308 (2008)]

Efimov, L.G.

see [Abelev,B.I., Phys. Rev. C 77, 034910 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 044908 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 054901 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, R061902 (2008)]
see [Abelev,B.I., Phys. Rev. C 78, 044906 (2008)]

Efremenko, Y.V.

see [Adare,A., Phys. Rev. C 77, R011901 (2008)]
see [Adler,S.S., Phys. Rev. C 77, 014905 (2008)]
see [Adare,A., Phys. Rev. C 77, 024912 (2008)]
see [Adare,A., Phys. Rev. C 77, 064907 (2008)]
see [Adare,A., Phys. Rev. C 78, 014901 (2008)]
see [Adare,A., Phys. Rev. C 78, 044902 (2008)]

Efros, VictorD.

see [Della Monaca,Sara, Phys. Rev. C 77, 044007 (2008)]

Egdemir, J.

see [Adare,A., Phys. Rev. C 77, R011901 (2008)]
see [Adare,A., Phys. Rev. C 77, 024912 (2008)]
see [Adare,A., Phys. Rev. C 77, 064907 (2008)]
see [Adare,A., Phys. Rev. C 78, 014901 (2008)]
see [Adare,A., Phys. Rev. C 78, 044902 (2008)]

Egido, J.L.

see [Schunck,N., Phys. Rev. C 77, R011301 (2008)]
see [Jungclaus,A., Phys. Rev. C 77, 024310 (2008)]
see [Schunck,N., Phys. Rev. C 78, 064305 (2008)]

Egiyan, H.

see [Park,K., Phys. Rev. C 77, 015208 (2008)]
see [De Masi,R., Phys. Rev. C 77, R042201 (2008)]
see [Nasseripour,R., Phys. Rev. C 77, 065208 (2008)]
see [Wood,M.H., Phys. Rev. C 78, 015201 (2008)]
see [Bosted,P.E., Phys. Rev. C 78, 015202 (2008)]
see [Santoro,J.P., Phys. Rev. C 78, 025210 (2008)]
see [Biselli,A.S., Phys. Rev. C 78, 045204 (2008)]
see [Aznauryan,I.G., Phys. Rev. C 78, 045209 (2008)]

Egiyan, K.S.

see [Park,K., Phys. Rev. C 77, 015208 (2008)]
see [De Masi,R., Phys. Rev. C 77, R042201 (2008)]
see [Nasseripour,R., Phys. Rev. C 77, 065208 (2008)]
see [Wood,M.H., Phys. Rev. C 78, 015201 (2008)]
see [Bosted,P.E., Phys. Rev. C 78, 015202 (2008)]
see [Santoro,J.P., Phys. Rev. C 78, 025210 (2008)]
see [Aznauryan,I.G., Phys. Rev. C 78, 045209 (2008)]

Eichler, R.

see [Gates,J.M., Phys. Rev. C 77, 034603 (2008)]
see [Nelson,S.L., Phys. Rev. C 78, 024606 (2008)]

Eichmann, G.

G. Eichmann, R. Alkofer, I.C. Clo\"{e}t, A. Krassnigg, and C.D. Roberts
Perspective on rainbow-ladder truncation
PACS: 24.85.+p 14.40.-n 11.15.Tk 13.40.Gp
Phys. Rev. C 77, R042202 (2008) [abstract]

Ekman, J.

see [Johansson,E.K., Phys. Rev. C 77, 064316 (2008)]
see [Torres,D.A., Phys. Rev. C 78, 054318 (2008)]

Ekstrom, A.

see [Doornenbal,P., Phys. Rev. C 78, R031303 (2008)]

El Fassi, L.

see [Nasseripour,R., Phys. Rev. C 77, 065208 (2008)]
see [Wood,M.H., Phys. Rev. C 78, 015201 (2008)]
see [Santoro,J.P., Phys. Rev. C 78, 025210 (2008)]
see [Aznauryan,I.G., Phys. Rev. C 78, 045209 (2008)]
see [Horn,T., Phys. Rev. C 78, 058201 (2008)]

ElAzabFarid, M.

see [Hassanain,M.A., Phys. Rev. C 77, 034601 (2008)]

Eleftheriadis, C.

see [Tagliente,G., Phys. Rev. C 77, 035802 (2008)]
see [Tagliente,G., Phys. Rev. C 78, 045804 (2008)]

Elekes, Z.

see [Sohler,D., Phys. Rev. C 77, 044303 (2008)]
see [Iwasaki,H., Phys. Rev. C 78, R021304 (2008)]
see [Marta,M., Phys. Rev. C 78, R022802 (2008)]
see [Iwasa,N., Phys. Rev. C 78, 024306 (2008)]


Z. Elekes, N. Aoi, Zs. Dombr\'adi, Zs. F\"ul\"op, T. Motobayashi, and H. Sakurai
Inelastic scattering studies of $^{16}$C reexamined
PACS: 23.20.Js 25.60.-t 27.20.+n 29.30.Kv
Phys. Rev. C 78, 027301 (2008) [abstract]


see [Iwasa,N., Phys. Rev. C 78, 029902(E) (2008)]
see [Stanoiu,M., Phys. Rev. C 78, 034315 (2008)]
see [Tumino,A., Phys. Rev. C 78, 064001 (2008)]

ElFassi, L.

see [Park,K., Phys. Rev. C 77, 015208 (2008)]
see [De Masi,R., Phys. Rev. C 77, R042201 (2008)]

Elhalhuli, E.

see [Abelev,B.I., Phys. Rev. C 77, 034910 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 044908 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 054901 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, R061902 (2008)]
see [Abelev,B.I., Phys. Rev. C 78, 044906 (2008)]

Elhami, E.

see [Orce,J.N., Phys. Rev. C 77, 029902(E) (2008)]
see [Orce,J.N., Phys. Rev. C 77, 064301 (2008)]
see [Scheck,M., Phys. Rev. C 78, 034302 (2008)]
see [Mukhopadhyay,S., Phys. Rev. C 78, 034317 (2008)]
see [Scheck,M., Phys. Rev. C 78, 039902(E) (2008)]


E. Elhami, J.N. Orce, M. Scheck, S. Mukhopadhyay, S.N. Choudry, M.T. McEllistrem, S.W. Yates, C. Angell, M. Boswell, B. Fallin, C.R. Howell, A. Hutcheson, H.J. Karwowski, J.H. Kelley, Y. Parpottas, A.P. Tonchev, and W. Tornow
Experimental study of the low-lying structure of $^{94}$Zr with the $(n,n\prime\gamma)$ reaction
PACS: 21.10.Re 21.10.Tg 25.40.Fq 27.60.+j
Phys. Rev. C 78, 064303 (2008) [abstract]

Eliseev, S.

see [Weber,C., Phys. Rev. C 78, 054310 (2008)]

Ellinghaus, F.

see [Adare,A., Phys. Rev. C 77, R011901 (2008)]
see [Adare,A., Phys. Rev. C 77, 024912 (2008)]
see [Adare,A., Phys. Rev. C 77, 064907 (2008)]
see [Adare,A., Phys. Rev. C 78, 014901 (2008)]
see [Adare,A., Phys. Rev. C 78, 044902 (2008)]

Elliott, J.B.

see [Moretto,L.G., Phys. Rev. C 77, 037603 (2008)]

Elliott, S.R.

see [Mei,D.-M., Phys. Rev. C 77, 054614 (2008)]

Ellis, M.

see [Catanesi,M.G., Phys. Rev. C 77, 055207 (2008)]

Ellison, P.A.

see [Gates,J.M., Phys. Rev. C 78, 034604 (2008)]

Elmaghraby, Elsayed K.

Elsayed K. Elmaghraby
Initial exciton configuration in $(p,n)$ pre-equilibrium emission reactions
PACS: 21.10.Pc 25.10.+s 25.40.Kv
Phys. Rev. C 78, 014601 (2008) [abstract]

Elmgren, K.

see [\"{O}hrn,A., Phys. Rev. C 77, 024605 (2008)]

Elnimr, M.

see [Abelev,B.I., Phys. Rev. C 77, R061902 (2008)]
see [Abelev,B.I., Phys. Rev. C 78, 044906 (2008)]

Elomaa, V.V.

see [Smith,D.L., Phys. Rev. C 77, 014309 (2008)]
see [Weber,C., Phys. Rev. C 78, 054310 (2008)]
see [Sjue,S.K.L., Phys. Rev. C 78, 064317 (2008)]

Elouadrhi ri, L.

see [Santoro,J.P., Phys. Rev. C 78, 025210 (2008)]

Elouadrhiri, L.

see [Park,K., Phys. Rev. C 77, 015208 (2008)]
see [De Masi,R., Phys. Rev. C 77, R042201 (2008)]
see [Nasseripour,R., Phys. Rev. C 77, 065208 (2008)]
see [Wood,M.H., Phys. Rev. C 78, 015201 (2008)]
see [Bosted,P.E., Phys. Rev. C 78, 015202 (2008)]
see [Biselli,A.S., Phys. Rev. C 78, 045204 (2008)]
see [Aznauryan,I.G., Phys. Rev. C 78, 045209 (2008)]

Elson, J.M.

see [Mercurio,K., Phys. Rev. C 78, R031602 (2008)]

Elster, Ch.

see [Yang,C.-J., Phys. Rev. C 77, 014002 (2008)]
see [Lin,T., Phys. Rev. C 78, 024002 (2008)]


Ch. Elster, T. Lin, W. Gl\"{o}ckle, and S. Jeschonnek
Faddeev and Glauber calculations at intermediate energies in a model for $n+d$ scattering
PACS: 21.45.-v 24.10.Ht 25.10.+s
Phys. Rev. C 78, 034002 (2008) [abstract]

Elvers, M.

see [B\"{u}ssing,M.A., Phys. Rev. C 78, 044309 (2008)]

Emam, W.S.

see [Adare,A., Phys. Rev. C 77, R011901 (2008)]
see [Adare,A., Phys. Rev. C 77, 064907 (2008)]
see [Adare,A., Phys. Rev. C 78, 014901 (2008)]
see [Adare,A., Phys. Rev. C 78, 044902 (2008)]

Eman, W.S.

see [Adare,A., Phys. Rev. C 77, 024912 (2008)]

EmbidSegura, M.

see [Tagliente,G., Phys. Rev. C 77, 035802 (2008)]
see [Tagliente,G., Phys. Rev. C 78, 045804 (2008)]

Emelianov, V.

see [Abelev,B.I., Phys. Rev. C 77, 034910 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 044908 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 054901 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, R061902 (2008)]
see [Abelev,B.I., Phys. Rev. C 78, 044906 (2008)]

Endres, J.

see [B\"{u}ssing,M.A., Phys. Rev. C 78, 044309 (2008)]

Engel, J.

see [Terasaki,J., Phys. Rev. C 78, 044311 (2008)]

Engel, Jonathan

see [\v{S}imkovic,Fedor, Phys. Rev. C 77, 045503 (2008)]

Engel, R.

see [Bopp,F.W., Phys. Rev. C 77, 014904 (2008)]

Engelage, J.

see [Abelev,B.I., Phys. Rev. C 77, 034910 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 044908 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 054901 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, R061902 (2008)]
see [Abelev,B.I., Phys. Rev. C 78, 044906 (2008)]

Engrand, C.

see [Fitoussi,C., Phys. Rev. C 78, 044613 (2008)]

Enokizono, A.

see [Adare,A., Phys. Rev. C 77, R011901 (2008)]
see [Adare,A., Phys. Rev. C 77, 024912 (2008)]
see [Adare,A., Phys. Rev. C 77, 064907 (2008)]
see [Adare,A., Phys. Rev. C 78, 014901 (2008)]
see [Adare,A., Phys. Rev. C 78, 044902 (2008)]

Enqvist, T.

see [Henzlova,D., Phys. Rev. C 78, 044616 (2008)]
see [Benlliure,J., Phys. Rev. C 78, 054605 (2008)]

Ent, R.

see [Blok,H.P., Phys. Rev. C 78, 045202 (2008)]
see [Huber,G.M., Phys. Rev. C 78, 045203 (2008)]
see [Horn,T., Phys. Rev. C 78, 058201 (2008)]

Entem, D.R.

D.R. Entem, E. Ruiz Arriola, M. Pav\'{o}n Valderrama, and R. Machleidt
Renormalization of chiral two-pion exchange $NN$ interactions: Momentum space versus coordinate space
PACS: 21.30.Fe 03.65.Nk 11.10.Gh 13.75.Cs
Phys. Rev. C 77, 044006 (2008) [abstract]

Enyo, H.

see [Adare,A., Phys. Rev. C 77, R011901 (2008)]
see [Adler,S.S., Phys. Rev. C 77, 014905 (2008)]
see [Adare,A., Phys. Rev. C 77, 024912 (2008)]
see [Adare,A., Phys. Rev. C 77, 064907 (2008)]
see [Adare,A., Phys. Rev. C 78, 014901 (2008)]
see [Adare,A., Phys. Rev. C 78, 044902 (2008)]

Epelbaum, E.

E. Epelbaum, H. Krebs, and Ulf-G. Mei{\ss}ner
Isospin-breaking two-nucleon force with explicit $\Delta$ excitations
PACS: 13.75.Cs 21.30.-x 14.20.Gk
Phys. Rev. C 77, 034006 (2008) [abstract]


see [Bernard,V., Phys. Rev. C 77, 064004 (2008)]

Eppley, G.

see [Abelev,B.I., Phys. Rev. C 77, 034910 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 044908 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 054901 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, R061902 (2008)]
see [Abelev,B.I., Phys. Rev. C 78, 044906 (2008)]

Erazmus, B.

see [Abelev,B.I., Phys. Rev. C 77, 034910 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 044908 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 054901 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, R061902 (2008)]
see [Abelev,B.I., Phys. Rev. C 78, 044906 (2008)]

Erduran, M.N.

see [Oktem,Y., Phys. Rev. C 78, 069904(E) (2008)]

Erhard, M.

see [Rusev,G., Phys. Rev. C 77, 064321 (2008)]
see [Nair,C., Phys. Rev. C 78, 055802 (2008)]
see [Schwengner,R., Phys. Rev. C 78, 064314 (2008)]

Eronen, T.

see [Smith,D.L., Phys. Rev. C 77, 014309 (2008)]
see [Weber,C., Phys. Rev. C 78, 054310 (2008)]
see [Sjue,S.K.L., Phys. Rev. C 78, 064317 (2008)]

Ertuck, S.

see [Robin,J., Phys. Rev. C 77, 014308 (2008)]
see [Robin,J., Phys. Rev. C 78, 034319 (2008)]

Erturk, S.

see [Oktem,Y., Phys. Rev. C 78, 069904(E) (2008)]

Esbensen, H.

H. Esbensen
Coupled-channels calculations of $^{16}$O+$^{16}$O fusion
PACS: 24.10.Eq 25.60.Pj 25.70.-z
Phys. Rev. C 77, 054608 (2008) [abstract]


see [Jiang,C.L., Phys. Rev. C 78, 017601 (2008)]


H. Esbensen
Coulomb excitation at intermediate energies
PACS: 23.20.-g 25.70.De
Phys. Rev. C 78, 024608 (2008) [abstract]

Esch, E.I.

see [Alpizar-Vicente,A.M., Phys. Rev. C 77, 015806 (2008)]


E.-I. Esch, R. Reifarth, E.M. Bond, T.A. Bredeweg, A. Couture, S.E. Glover, U. Greife, R.C. Haight, A.M. Hatarik, R. Hatarik, M. Jandel, T. Kawano, A. Mertz, J.M. O'Donnell, R.S. Rundberg, J.M. Schwantes, J.L. Ullmann, D.J. Vieira, J.B. Wilhelmy, and J.M. Wouters
Measurement of the $^{237}$Np($n$,$\gamma$) cross section from 20 meV to 500 keV with a high efficiency, highly segmented 4$\pi$ BaF$_2$ detector
PACS: 25.40.Lw 29.40.Vj 29.25.Dz 29.40.Wk
Phys. Rev. C 77, 034309 (2008) [abstract]

Escrig, D.

see [Jungclaus,A., Phys. Rev. C 77, 024310 (2008)]

Escuderos, A.

see [Speidel,K.-H., Phys. Rev. C 78, 017304 (2008)]

Eskola, KariJ.

see [Renk,Thorsten, Phys. Rev. C 77, 044905 (2008)]

Eskola, K.J.

K.J. Eskola, H. Niemi, and P.V. Ruuskanen
Dynamical freeze-out condition in ultrarelativistic heavy ion collisions
PACS: 25.75.-q 47.75.+f
Phys. Rev. C 77, 044907 (2008) [abstract]

EslamiKalantari, M.

see [Ramazani-Moghaddam-Arani,A., Phys. Rev. C 78, 014006 (2008)]

Espagnon, B.

see [Adare,A., Phys. Rev. C 77, R011901 (2008)]
see [Adler,S.S., Phys. Rev. C 77, 014905 (2008)]
see [Adare,A., Phys. Rev. C 77, 024912 (2008)]
see [Adare,A., Phys. Rev. C 77, 064907 (2008)]
see [Adare,A., Phys. Rev. C 78, 014901 (2008)]
see [Adare,A., Phys. Rev. C 78, 044902 (2008)]

Espino, J.M.

see [Mukha,I., Phys. Rev. C 77, R061303 (2008)]

Esterline, J.H.

see [Kidd,M.F., Phys. Rev. C 78, 035504 (2008)]

Estevez, M.E.

see [Steer,S.J., Phys. Rev. C 78, R061302 (2008)]

Estienne, M.

see [Abelev,B.I., Phys. Rev. C 77, 034910 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 044908 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 054901 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, R061902 (2008)]
see [Abelev,B.I., Phys. Rev. C 78, 044906 (2008)]

Esumi, S.

see [Adare,A., Phys. Rev. C 77, R011901 (2008)]
see [Adler,S.S., Phys. Rev. C 77, 014905 (2008)]
see [Adare,A., Phys. Rev. C 77, 024912 (2008)]
see [Adare,A., Phys. Rev. C 77, 064907 (2008)]
see [Adare,A., Phys. Rev. C 78, 014901 (2008)]
see [Adare,A., Phys. Rev. C 78, 044902 (2008)]

Esumi, S.I.

see [Adamov\'{a},D., Phys. Rev. C 78, 064901 (2008)]

Ettenauer, S.

S. Ettenauer, H. Zwahlen, P. Adrich, D. Bazin, C.M. Campbell, J.M. Cook, A.D. Davies, D.-C. Dinca, A. Gade, T. Glasmacher, J.-L. Lecouey, W.F. Mueller, T. Otsuka, R.R. Reynolds, L.A. Riley, J.R. Terry, Y. Utsuno, and K. Yoneda
Intermediate-energy Coulomb excitation of $^{30}$Na
PACS: 25.70.De 27.30.+t
Phys. Rev. C 78, 017302 (2008) [abstract]

Eudes, Ph.

see [\"{O}hrn,A., Phys. Rev. C 77, 024605 (2008)]

Eugenio, P.

see [Park,K., Phys. Rev. C 77, 015208 (2008)]
see [De Masi,R., Phys. Rev. C 77, R042201 (2008)]
see [Nasseripour,R., Phys. Rev. C 77, 065208 (2008)]
see [Wood,M.H., Phys. Rev. C 78, 015201 (2008)]
see [Bosted,P.E., Phys. Rev. C 78, 015202 (2008)]
see [Santoro,J.P., Phys. Rev. C 78, 025210 (2008)]
see [Biselli,A.S., Phys. Rev. C 78, 045204 (2008)]
see [Aznauryan,I.G., Phys. Rev. C 78, 045209 (2008)]

Eun, L.

see [Abelev,B.I., Phys. Rev. C 77, 034910 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 044908 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, 054901 (2008)]
see [Abelev,B.I., Phys. Rev. C 77, R061902 (2008)]
see [Abelev,B.I., Phys. Rev. C 78, 044906 (2008)]

Evers, Jorg

see [P\'{a}lffy,Adriana, Phys. Rev. C 77, 044602 (2008)]

Evers, M.

see [Thomas,R.G., Phys. Rev. C 77, 034610 (2008)]


M. Evers, M. Dasgupta, D.J. Hinde, L.R. Gasques, M.L. Brown, R. Rafiei, and R.G. Thomas
Systematic study of the nuclear potential diffuseness through high precision back-angle quasi-elastic scattering
PACS: 25.70.Bc 24.10.Ht 24.10.Eq
Phys. Rev. C 78, 034614 (2008) [abstract]

Evtimova, M.

see [Werner,V., Phys. Rev. C 78, R031301 (2008)]

Ewald, I.

see [Boeglin,W.U., Phys. Rev. C 78, 054001 (2008)]

Eyser, K.O.

see [Adare,A., Phys. Rev. C 77, R011901 (2008)]
see [Adare,A., Phys. Rev. C 77, 024912 (2008)]
see [Adare,A., Phys. Rev. C 77, 064907 (2008)]
see [Adare,A., Phys. Rev. C 78, 014901 (2008)]
see [Adare,A., Phys. Rev. C 78, 044902 (2008)]


Collaborations | Authors A B C D E F G H I J K L M N O P Q R S T U V W X Y Z