The production of Z0 bosons in the reaction ep →eZ0 p(∗), where p(∗) stands for a proton or a low-mass nucleon resonance, has been studied in ep collisions at HERA using the ZEUS detector. The analysis is based on a data sample collected between 1996 and 2007, amounting to 496 pb−1 of integrated luminosity. The Z0 was measured in the hadronic decay mode. The elasticity of the events was ensured by a cut on ηmax < 3.0, where ηmax is the maximum pseudorapidity of energy deposits in the calorimeter defined with respect to the proton beam direction. A signal was observed at the Z0 mass. The cross section of the reaction ep → eZ0 p(∗) was measured to be σ(ep → eZ0 p(∗)) =0.13 ± 0.06(stat.) ± 0.01(syst.) pb, in agreement with the Standard Model prediction of 0.16 pb. This is the first measurement of Z0 production in ep collisions.

Production of Z0 bosons in elastic and quasi-elastic ep collisions at HERA / H. Abramowicz;I. Abt;L. Adamczyk;M. Adamus;R. Aggarwal;S. Antonelli;P. Antonioli;A. Antonov;M. Arneodo;O. Arslan;V. Aushev;Y. Aushev;O. Bachynska;A. Bamberger;A.N. Barakbaev;G. Barbagli;G. Bari;F. Barreiro;N. Bartosik;D. Bartsch;M. Basile;O. Behnke;J. Behr;U. Behrens;L. Bellagamba;A. Bertolin;S. Bhadra;M. Bindi;C. Blohm;V. Bokhonov;T. Bołd;K. Bondarenko;E.G. Boos;K. Borras;D. Boscherini;D. Bot;I. Brock;E. Brownson;R. Brugnera;N. Brümmer;A. Bruni;G. Bruni;B. Brzozowska;P.J. Bussey;B. Bylsma;A. Caldwell;M. Capua;R. Carlin;C.D. Catterall;S. Chekanov;J. Chwastowski;J. Ciborowski;R. Ciesielski;L. Cifarelli;F. Cindolo;A. Contin;A.M. Cooper-Sarkar;N. Coppola;M. Corradi;F. Corriveau;M. Costa;G. DʼAgostini;F. Dal Corso;J. del Peso;R.K. Dementiev;S. De Pasquale;M. Derrick;R.C.E. Devenish;D. Dobur;B.A. Dolgoshein;G. Dolinska;A.T. Doyle;V. Drugakov;L.S. Durkin;S. Dusini;Y. Eisenberg;P.F. Ermolov;A. Eskreys;S. Fang;S. Fazio;J. Ferrando;M.I. Ferrero;J. Figiel;B. Foster;G. Gach;A. Galas;E. Gallo;A. Garfagnini;A. Geiser;I. Gialas;A. Gizhko;L.K. Gladilin;D. Gladkov;C. Glasman;O. Gogota;Yu.A. Golubkov;P. Göttlicher;I. Grabowska-Bołd;J. Grebenyuk;I. Gregor;G. Grigorescu;G. Grzelak;O. Gueta;M. Guzik;C. Gwenlan;T. Haas;W. Hain;R. Hamatsu;J.C. Hart;H. Hartmann;G. Hartner;E. Hilger;D. Hochman;R. Hori;A. Hüttmann;Z.A. Ibrahim;Y. Iga;R. Ingbir;M. Ishitsuka;H.-P. Jakob;F. Januschek;T.W. Jones;M. Jüngst;I. Kadenko;B. Kahle;S. Kananov;T. Kanno;U. Karshon;F. Karstens;I.I. Katkov;M. Kaur;P. Kaur;A. Keramidas;L.A. Khein;J.Y. Kim;D. Kisielewska;S. Kitamura;R. Klanner;U. Klein;E. Koffeman;N. Kondrashova;O. Kononenko;P. Kooijman;Ie. Korol;I.A. Korzhavina;A. Kotański;U. Kötz;H. Kowalski;O. Kuprash;M. Kuze;A. Lee;B.B. Levchenko;A. Levy;V. Libov;S. Limentani;T.Y. Ling;M. Lisovyi;E. Lobodzinska;W. Lohmann;B. Löhr;E. Lohrmann;K.R. Long;A. Longhin;D. Lontkovskyi;O.Yu. Lukina;J. Maeda;S. Magill;I. Makarenko;J. Malka;R. Mankel;A. Margotti;G. Marini;J.F. Martin;A. Mastroberardino;M.C.K. Mattingly;I.-A. Melzer-Pellmann;S. Mergelmeyer;S. Miglioranzi;F. Mohamad Idris;V. Monaco;A. Montanari;J.D. Morris;K. Mujkic;B. Musgrave;K. Nagano;T. Namsoo;R. Nania;A. Nigro;Y. Ning;T. Nobe;D. Notz;R.J. Nowak;A.E. Nuncio-Quiroz;B.Y. Oh;N. Okazaki;K. Olkiewicz;Yu. Onishchuk;K. Papageorgiu;A. Parenti;E. Paul;J.M. Pawlak;B. Pawlik;P.G. Pelfer;A. Pellegrino;W. Perlański;H. Perrey;K. Piotrzkowski;P. Pluciński;N.S. Pokrovskiy;A. Polini;A.S. Proskuryakov;M. Przybycień;A. Raval;D.D. Reeder;B. Reisert;Z. Ren;J. Repond;Y.D. Ri;A. Robertson;P. Roloff;I. Rubinsky;M. Ruspa;R. Sacchi;U. Samson;G. Sartorelli;A.A. Savin;D.H. Saxon;M. Schioppa;S. Schlenstedt;P. Schleper;W.B. Schmidke;U. Schneekloth;V. Schönberg;T. Schörner-Sadenius;J. Schwartz;F. Sciulli;L.M. Shcheglova;R. Shehzadi;S. Shimizu;I. Singh;I.O. Skillicorn;W. Słomiński;W.H. Smith;V. Sola;A. Solano;D. Son;V. Sosnovtsev;A. Spiridonov;H. Stadie;L. Stanco;N. Stefaniuk;A. Stern;T.P. Stewart;A. Stifutkin;P. Stopa;S. Suchkov;G. Susinno;L. Suszycki;J. Sztuk-Dambietz;D. Szuba;J. Szuba;A.D. Tapper;E. Tassi;J. Terrón;T. Theedt;H. Tiecke;K. Tokushuku;J. Tomaszewska;V. Trusov;T. Tsurugai;M. Turcato;O. Turkot;T. Tymieniecka;M. Vázquez;A. Verbytskyi;O. Viazlo;N.N. Vlasov;R. Walczak;W.A.T. Wan Abdullah;J.J. Whitmore;K. Wichmann;L. Wiggers;M. Wing;M. Wlasenko;G. Wolf;H. Wolfe;K. Wrona;A.G. Yagües-Molina;S. Yamada;Y. Yamazaki;R. Yoshida;C. Youngman;O. Zabiegalov;A.F. Żarnecki;L. Zawiejski;O. Zenaiev;W. Zeuner;B.O. Zhautykov;N. Zhmak;A. Zichichi;Z. Zolkapli;D.S. Zotkin. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 718:(2013), pp. 915-921. [10.1016/j.physletb.2012.11.051]

Production of Z0 bosons in elastic and quasi-elastic ep collisions at HERA

BASILE, MAURIZIO;CIFARELLI, LUISA;CONTIN, ANDREA;SARTORELLI, GABRIELLA;
2013

Abstract

The production of Z0 bosons in the reaction ep →eZ0 p(∗), where p(∗) stands for a proton or a low-mass nucleon resonance, has been studied in ep collisions at HERA using the ZEUS detector. The analysis is based on a data sample collected between 1996 and 2007, amounting to 496 pb−1 of integrated luminosity. The Z0 was measured in the hadronic decay mode. The elasticity of the events was ensured by a cut on ηmax < 3.0, where ηmax is the maximum pseudorapidity of energy deposits in the calorimeter defined with respect to the proton beam direction. A signal was observed at the Z0 mass. The cross section of the reaction ep → eZ0 p(∗) was measured to be σ(ep → eZ0 p(∗)) =0.13 ± 0.06(stat.) ± 0.01(syst.) pb, in agreement with the Standard Model prediction of 0.16 pb. This is the first measurement of Z0 production in ep collisions.
2013
Production of Z0 bosons in elastic and quasi-elastic ep collisions at HERA / H. Abramowicz;I. Abt;L. Adamczyk;M. Adamus;R. Aggarwal;S. Antonelli;P. Antonioli;A. Antonov;M. Arneodo;O. Arslan;V. Aushev;Y. Aushev;O. Bachynska;A. Bamberger;A.N. Barakbaev;G. Barbagli;G. Bari;F. Barreiro;N. Bartosik;D. Bartsch;M. Basile;O. Behnke;J. Behr;U. Behrens;L. Bellagamba;A. Bertolin;S. Bhadra;M. Bindi;C. Blohm;V. Bokhonov;T. Bołd;K. Bondarenko;E.G. Boos;K. Borras;D. Boscherini;D. Bot;I. Brock;E. Brownson;R. Brugnera;N. Brümmer;A. Bruni;G. Bruni;B. Brzozowska;P.J. Bussey;B. Bylsma;A. Caldwell;M. Capua;R. Carlin;C.D. Catterall;S. Chekanov;J. Chwastowski;J. Ciborowski;R. Ciesielski;L. Cifarelli;F. Cindolo;A. Contin;A.M. Cooper-Sarkar;N. Coppola;M. Corradi;F. Corriveau;M. Costa;G. DʼAgostini;F. Dal Corso;J. del Peso;R.K. Dementiev;S. De Pasquale;M. Derrick;R.C.E. Devenish;D. Dobur;B.A. Dolgoshein;G. Dolinska;A.T. Doyle;V. Drugakov;L.S. Durkin;S. Dusini;Y. Eisenberg;P.F. Ermolov;A. Eskreys;S. Fang;S. Fazio;J. Ferrando;M.I. Ferrero;J. Figiel;B. Foster;G. Gach;A. Galas;E. Gallo;A. Garfagnini;A. Geiser;I. Gialas;A. Gizhko;L.K. Gladilin;D. Gladkov;C. Glasman;O. Gogota;Yu.A. Golubkov;P. Göttlicher;I. Grabowska-Bołd;J. Grebenyuk;I. Gregor;G. Grigorescu;G. Grzelak;O. Gueta;M. Guzik;C. Gwenlan;T. Haas;W. Hain;R. Hamatsu;J.C. Hart;H. Hartmann;G. Hartner;E. Hilger;D. Hochman;R. Hori;A. Hüttmann;Z.A. Ibrahim;Y. Iga;R. Ingbir;M. Ishitsuka;H.-P. Jakob;F. Januschek;T.W. Jones;M. Jüngst;I. Kadenko;B. Kahle;S. Kananov;T. Kanno;U. Karshon;F. Karstens;I.I. Katkov;M. Kaur;P. Kaur;A. Keramidas;L.A. Khein;J.Y. Kim;D. Kisielewska;S. Kitamura;R. Klanner;U. Klein;E. Koffeman;N. Kondrashova;O. Kononenko;P. Kooijman;Ie. Korol;I.A. Korzhavina;A. Kotański;U. Kötz;H. Kowalski;O. Kuprash;M. Kuze;A. Lee;B.B. Levchenko;A. Levy;V. Libov;S. Limentani;T.Y. Ling;M. Lisovyi;E. Lobodzinska;W. Lohmann;B. Löhr;E. Lohrmann;K.R. Long;A. Longhin;D. Lontkovskyi;O.Yu. Lukina;J. Maeda;S. Magill;I. Makarenko;J. Malka;R. Mankel;A. Margotti;G. Marini;J.F. Martin;A. Mastroberardino;M.C.K. Mattingly;I.-A. Melzer-Pellmann;S. Mergelmeyer;S. Miglioranzi;F. Mohamad Idris;V. Monaco;A. Montanari;J.D. Morris;K. Mujkic;B. Musgrave;K. Nagano;T. Namsoo;R. Nania;A. Nigro;Y. Ning;T. Nobe;D. Notz;R.J. Nowak;A.E. Nuncio-Quiroz;B.Y. Oh;N. Okazaki;K. Olkiewicz;Yu. Onishchuk;K. Papageorgiu;A. Parenti;E. Paul;J.M. Pawlak;B. Pawlik;P.G. Pelfer;A. Pellegrino;W. Perlański;H. Perrey;K. Piotrzkowski;P. Pluciński;N.S. Pokrovskiy;A. Polini;A.S. Proskuryakov;M. Przybycień;A. Raval;D.D. Reeder;B. Reisert;Z. Ren;J. Repond;Y.D. Ri;A. Robertson;P. Roloff;I. Rubinsky;M. Ruspa;R. Sacchi;U. Samson;G. Sartorelli;A.A. Savin;D.H. Saxon;M. Schioppa;S. Schlenstedt;P. Schleper;W.B. Schmidke;U. Schneekloth;V. Schönberg;T. Schörner-Sadenius;J. Schwartz;F. Sciulli;L.M. Shcheglova;R. Shehzadi;S. Shimizu;I. Singh;I.O. Skillicorn;W. Słomiński;W.H. Smith;V. Sola;A. Solano;D. Son;V. Sosnovtsev;A. Spiridonov;H. Stadie;L. Stanco;N. Stefaniuk;A. Stern;T.P. Stewart;A. Stifutkin;P. Stopa;S. Suchkov;G. Susinno;L. Suszycki;J. Sztuk-Dambietz;D. Szuba;J. Szuba;A.D. Tapper;E. Tassi;J. Terrón;T. Theedt;H. Tiecke;K. Tokushuku;J. Tomaszewska;V. Trusov;T. Tsurugai;M. Turcato;O. Turkot;T. Tymieniecka;M. Vázquez;A. Verbytskyi;O. Viazlo;N.N. Vlasov;R. Walczak;W.A.T. Wan Abdullah;J.J. Whitmore;K. Wichmann;L. Wiggers;M. Wing;M. Wlasenko;G. Wolf;H. Wolfe;K. Wrona;A.G. Yagües-Molina;S. Yamada;Y. Yamazaki;R. Yoshida;C. Youngman;O. Zabiegalov;A.F. Żarnecki;L. Zawiejski;O. Zenaiev;W. Zeuner;B.O. Zhautykov;N. Zhmak;A. Zichichi;Z. Zolkapli;D.S. Zotkin. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 718:(2013), pp. 915-921. [10.1016/j.physletb.2012.11.051]
H. Abramowicz;I. Abt;L. Adamczyk;M. Adamus;R. Aggarwal;S. Antonelli;P. Antonioli;A. Antonov;M. Arneodo;O. Arslan;V. Aushev;Y. Aushev;O. Bachynska;A. Bamberger;A.N. Barakbaev;G. Barbagli;G. Bari;F. Barreiro;N. Bartosik;D. Bartsch;M. Basile;O. Behnke;J. Behr;U. Behrens;L. Bellagamba;A. Bertolin;S. Bhadra;M. Bindi;C. Blohm;V. Bokhonov;T. Bołd;K. Bondarenko;E.G. Boos;K. Borras;D. Boscherini;D. Bot;I. Brock;E. Brownson;R. Brugnera;N. Brümmer;A. Bruni;G. Bruni;B. Brzozowska;P.J. Bussey;B. Bylsma;A. Caldwell;M. Capua;R. Carlin;C.D. Catterall;S. Chekanov;J. Chwastowski;J. Ciborowski;R. Ciesielski;L. Cifarelli;F. Cindolo;A. Contin;A.M. Cooper-Sarkar;N. Coppola;M. Corradi;F. Corriveau;M. Costa;G. DʼAgostini;F. Dal Corso;J. del Peso;R.K. Dementiev;S. De Pasquale;M. Derrick;R.C.E. Devenish;D. Dobur;B.A. Dolgoshein;G. Dolinska;A.T. Doyle;V. Drugakov;L.S. Durkin;S. Dusini;Y. Eisenberg;P.F. Ermolov;A. Eskreys;S. Fang;S. Fazio;J. Ferrando;M.I. Ferrero;J. Figiel;B. Foster;G. Gach;A. Galas;E. Gallo;A. Garfagnini;A. Geiser;I. Gialas;A. Gizhko;L.K. Gladilin;D. Gladkov;C. Glasman;O. Gogota;Yu.A. Golubkov;P. Göttlicher;I. Grabowska-Bołd;J. Grebenyuk;I. Gregor;G. Grigorescu;G. Grzelak;O. Gueta;M. Guzik;C. Gwenlan;T. Haas;W. Hain;R. Hamatsu;J.C. Hart;H. Hartmann;G. Hartner;E. Hilger;D. Hochman;R. Hori;A. Hüttmann;Z.A. Ibrahim;Y. Iga;R. Ingbir;M. Ishitsuka;H.-P. Jakob;F. Januschek;T.W. Jones;M. Jüngst;I. Kadenko;B. Kahle;S. Kananov;T. Kanno;U. Karshon;F. Karstens;I.I. Katkov;M. Kaur;P. Kaur;A. Keramidas;L.A. Khein;J.Y. Kim;D. Kisielewska;S. Kitamura;R. Klanner;U. Klein;E. Koffeman;N. Kondrashova;O. Kononenko;P. Kooijman;Ie. Korol;I.A. Korzhavina;A. Kotański;U. Kötz;H. Kowalski;O. Kuprash;M. Kuze;A. Lee;B.B. Levchenko;A. Levy;V. Libov;S. Limentani;T.Y. Ling;M. Lisovyi;E. Lobodzinska;W. Lohmann;B. Löhr;E. Lohrmann;K.R. Long;A. Longhin;D. Lontkovskyi;O.Yu. Lukina;J. Maeda;S. Magill;I. Makarenko;J. Malka;R. Mankel;A. Margotti;G. Marini;J.F. Martin;A. Mastroberardino;M.C.K. Mattingly;I.-A. Melzer-Pellmann;S. Mergelmeyer;S. Miglioranzi;F. Mohamad Idris;V. Monaco;A. Montanari;J.D. Morris;K. Mujkic;B. Musgrave;K. Nagano;T. Namsoo;R. Nania;A. Nigro;Y. Ning;T. Nobe;D. Notz;R.J. Nowak;A.E. Nuncio-Quiroz;B.Y. Oh;N. Okazaki;K. Olkiewicz;Yu. Onishchuk;K. Papageorgiu;A. Parenti;E. Paul;J.M. Pawlak;B. Pawlik;P.G. Pelfer;A. Pellegrino;W. Perlański;H. Perrey;K. Piotrzkowski;P. Pluciński;N.S. Pokrovskiy;A. Polini;A.S. Proskuryakov;M. Przybycień;A. Raval;D.D. Reeder;B. Reisert;Z. Ren;J. Repond;Y.D. Ri;A. Robertson;P. Roloff;I. Rubinsky;M. Ruspa;R. Sacchi;U. Samson;G. Sartorelli;A.A. Savin;D.H. Saxon;M. Schioppa;S. Schlenstedt;P. Schleper;W.B. Schmidke;U. Schneekloth;V. Schönberg;T. Schörner-Sadenius;J. Schwartz;F. Sciulli;L.M. Shcheglova;R. Shehzadi;S. Shimizu;I. Singh;I.O. Skillicorn;W. Słomiński;W.H. Smith;V. Sola;A. Solano;D. Son;V. Sosnovtsev;A. Spiridonov;H. Stadie;L. Stanco;N. Stefaniuk;A. Stern;T.P. Stewart;A. Stifutkin;P. Stopa;S. Suchkov;G. Susinno;L. Suszycki;J. Sztuk-Dambietz;D. Szuba;J. Szuba;A.D. Tapper;E. Tassi;J. Terrón;T. Theedt;H. Tiecke;K. Tokushuku;J. Tomaszewska;V. Trusov;T. Tsurugai;M. Turcato;O. Turkot;T. Tymieniecka;M. Vázquez;A. Verbytskyi;O. Viazlo;N.N. Vlasov;R. Walczak;W.A.T. Wan Abdullah;J.J. Whitmore;K. Wichmann;L. Wiggers;M. Wing;M. Wlasenko;G. Wolf;H. Wolfe;K. Wrona;A.G. Yagües-Molina;S. Yamada;Y. Yamazaki;R. Yoshida;C. Youngman;O. Zabiegalov;A.F. Żarnecki;L. Zawiejski;O. Zenaiev;W. Zeuner;B.O. Zhautykov;N. Zhmak;A. Zichichi;Z. Zolkapli;D.S. Zotkin
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