Measurement of the W+W- γ cross-section and first direct limits on anomalous electroweak quartic gauge couplings

被引:38
作者
Abbiendi, G [1 ]
Ackerstaff, K
Akesson, PF
Alexander, G
Allison, J
Anderson, KJ
Arcelli, S
Asai, S
Ashby, SF
Axen, D
Azuelos, G
Bailey, I
Ball, AH
Barberio, E
Barlow, RJ
Batley, JR
Baumann, S
Behnke, T
Bell, KW
Bella, G
Bellerive, A
Bentvelsen, S
Bethke, S
Betts, S
Biebel, O
Biguzzi, A
Bloodworth, IJ
Bock, P
Böhme, J
Boeriu, O
Bonacorsi, D
Boutemeur, M
Braibant, S
Bright-Thomas, P
Brigliadori, L
Brown, RM
Burckhart, HJ
Capiluppi, P
Carnegie, RK
Carter, AA
Carter, JR
Chang, CY
Charlton, DG
Chrisman, D
Ciocca, C
Clarke, PEL
Clay, E
Cohen, I
Conboy, JE
Cooke, OC
机构
[1] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy
[2] Ist Nazl Fis Nucl, I-40126 Bologna, Italy
[3] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England
[4] Univ Bonn, Inst Phys, D-53115 Bonn, Germany
[5] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA
[6] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[7] Carleton Univ, Dept Phys, Ottawa Carleton Inst Phys, Ottawa, ON K1S 5B6, Canada
[8] Carleton Univ, Ctr Res Particle Phys, Ottawa, ON K1S 5B6, Canada
[9] CERN, European Org Particle Phys, CH-1211 Geneva 23, Switzerland
[10] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
[11] Univ Chicago, Dept Phys, Chicago, IL 60637 USA
[12] Univ Freiburg, Fak Phys, D-79104 Freiburg, Germany
[13] Univ Heidelberg, Inst Phys, D-69120 Heidelberg, Germany
[14] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA
[15] Univ London Queen Mary & Westfield Coll, London E1 4NS, England
[16] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany
[17] UCL, London WC1E 6BT, England
[18] Univ Manchester, Schuster Lab, Dept Phys, Manchester M13 9PL, Lancs, England
[19] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
[20] Univ Montreal, Phys Nucl Lab, Montreal, PQ H3C 3J7, Canada
[21] Univ Oregon, Dept Phys, Eugene, OR 97403 USA
[22] Rutherford Appleton Lab, CLRC, Didcot OX11 0QX, Oxon, England
[23] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel
[24] Tel Aviv Univ, Dept Phys & Astron, IL-69978 Tel Aviv, Israel
[25] Univ Tokyo, Int Ctr Elementary Particle Phys, Tokyo 1130033, Japan
[26] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
[27] Japan & Kobe Univ, Kobe, Hyogo 6578501, Japan
[28] Brunel Univ, Inst Phys & Environm Sci, Uxbridge UB8 3PH, Middx, England
[29] Weizmann Inst Sci, Particle Phys Dept, IL-76100 Rehovot, Israel
[30] Univ Hamburg, DESY, Inst Expt Phys 2, D-22607 Hamburg, Germany
[31] Univ Victoria, Dept Phys, Victoria, BC V8W 3P6, Canada
[32] Univ British Columbia, Dept Phys, Vancouver, BC V6T 1Z1, Canada
[33] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada
[34] Res Inst Particle & Nucl Phys, H-1525 Budapest, Hungary
[35] Inst Nucl Res, H-4001 Debrecen, Hungary
[36] Univ Munich, Sekt Phys, D-85748 Garching, Germany
[37] TRIUMF, Vancouver, BC V6T 2A3, Canada
[38] Max Planck Inst, Munich, Germany
关键词
D O I
10.1016/S0370-2693(99)01357-X
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A study of W(+)W(-) events accompanied by hard photon radiation produced in e(+)e(-) collisions at LEP is presented. Events consistent with two on-shell W-bosons and an isolated photon are selected from 183 pb(-1) of data recorded at root s = 189 GeV. From these data, 17 W(+)W(-) gamma candidates are selected with photon energy greater than 10 GeV, consistent with the Standard Model expectation. These events are used to measure the e(+)e(-) --> W(+)W(-) gamma cross-section within a set of geometric and kinematic cuts, <(sigma)over cap>(WW gamma) = 136 +/- 37 +/- 8 fb, where the first error is statistical and the second systematic. The photon energy spectrum is used to set the first direct, albeit weak, limits on possible anomalous contributions to the W(+)W(-) gamma gamma and W(+)W(-) gamma Z(0) vertices: 0.070GeV(-2) < a(0)/Lambda(2) < 0.070 GeV(-2), 0.13GeV(-2) < a(c)/Lambda(2) < 0.19 GeV(-2), 0.61GeV(-2) < a(n)/Lambda(2) < 0.57 GeV(-2), where Lambda represents the energy scale for new physics. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:293 / 307
页数:15
相关论文
共 50 条
[1]   W+W- production and triple gauge boson couplings at LEP energies up to 183 GeV [J].
Abbiendi, G ;
Ackerstaff, K ;
Alexander, G ;
Allison, J ;
Altekamp, N ;
Anderson, KJ ;
Anderson, S ;
Arcelli, S ;
Asai, S ;
Ashby, SF ;
Axen, D ;
Azuelos, G ;
Ball, AH ;
Barberio, E ;
Barlow, RJ ;
Bartoldus, R ;
Batley, JR ;
Baumann, S ;
Bechtluft, J ;
Behnke, T ;
Bell, KW ;
Bella, G ;
Bellerive, A ;
Bentvelsen, S ;
Bethke, S ;
Betts, S ;
Biebel, O ;
Biguzzi, A ;
Bird, SD ;
Blobel, V ;
Bloodworth, IJ ;
Bock, P ;
Böhme, J ;
Bonacorsi, D ;
Boutemeur, M ;
Braibant, S ;
Bright-Thomas, P ;
Brigliadori, L ;
Brown, RM ;
Burckhart, HJ ;
Capiluppi, P ;
Carnegie, RK ;
Carter, AA ;
Carter, JR ;
Chang, CY ;
Charlton, DG ;
Chrisman, D ;
Ciocca, C ;
Clarke, PEL ;
Clay, E .
EUROPEAN PHYSICAL JOURNAL C, 1999, 8 (02) :191-215
[2]   Tests of the Standard Model and constraints on new physics from measurements of fermion-pair production at 183 GeV at LEP [J].
Abbiendi, G ;
Ackerstaff, K ;
Alexander, G ;
Allison, J ;
Altekamp, N ;
Anderson, KJ ;
Anderson, S ;
Arcelli, S ;
Asai, S ;
Ashby, SF ;
Axen, D ;
Azuelos, G ;
Ball, AH ;
Barberio, E ;
Barlow, RJ ;
Bartoldus, R ;
Batley, JR ;
Baumann, S ;
Bechtluft, J ;
Behnke, T ;
Bell, KW ;
Bella, G ;
Bellerive, A ;
Bentvelsen, S ;
Bethke, S ;
Betts, S ;
Biebel, O ;
Biguzzi, A ;
Bird, SD ;
Blobel, V ;
Bloodworth, IJ ;
Bobinski, M ;
Bock, P ;
Bohme, J ;
Bonacorsi, D ;
Boutemeur, M ;
Braibant, S ;
Bright-Thomas, P ;
Brigliadori, L ;
Brown, RM ;
Burckhart, HJ ;
Burgard, C ;
Burgin, R ;
Capiluppi, P ;
Carnegie, RK ;
Carter, AA ;
Carter, JR ;
Chang, CY ;
Charlton, DG ;
Chrisman, D .
EUROPEAN PHYSICAL JOURNAL C, 1999, 6 (01) :1-18
[3]  
ABBIENDI G, UNPUB EUR PHYS J C
[4]  
Abbott B, 1998, PHYS REV D, V58, DOI 10.1103/PhysRevD.58.051101
[5]   Evidence for W+W- production in (p)over-bar-p collisions at root s=1.8 TeV [J].
Abe, F ;
Akimoto, H ;
Akopian, A ;
Albrow, MG ;
Amendolia, SR ;
Amidei, D ;
Antos, J ;
Aota, S ;
Apollinari, G ;
Asakawa, T ;
Ashmanskas, W ;
Atac, M ;
Azfar, F ;
AzziBacchetta, P ;
Bacchetta, N ;
Badgett, W ;
Bagdasarov, S ;
Bailey, MW ;
Bao, J ;
deBarbaro, P ;
BarbaroGaltieri, A ;
Barnes, VE ;
Barnett, BA ;
Barone, M ;
Barzi, E ;
Bauer, G ;
Baumann, T ;
Bedeschi, F ;
Behrends, S ;
Belforte, S ;
Bellettini, G ;
Bellinger, J ;
Benjamin, D ;
Benlloch, J ;
Bensinger, J ;
Benton, D ;
Beretvas, A ;
Berge, JP ;
Berryhill, J ;
Bertolucci, S ;
Bevensee, B ;
Bhatti, A ;
Biery, K ;
Binkley, M ;
Bisello, D ;
Blair, RE ;
Blocker, C ;
Bodek, A ;
Bokhari, W ;
Bolognesi, V .
PHYSICAL REVIEW LETTERS, 1997, 78 (24) :4536-4540
[6]   W pair production cross-section and W branching fractions in e+e- interactions at 183 GeV [J].
Abreu, P ;
Adam, W ;
Adye, T ;
Adzic, P ;
Albrecht, Z ;
Alderweireld, T ;
Alekseev, GD ;
Alemany, R ;
Allmendinger, T ;
Allport, PP ;
Almehed, S ;
Amaldi, U ;
Amapane, N ;
Amato, S ;
Anassontzis, EG ;
Andersson, P ;
Andreazza, A ;
Andringa, S ;
Antilogus, P ;
Apel, WD ;
Arnoud, Y ;
Åsman, B ;
Augustin, JE ;
Augustinus, A ;
Baillon, P ;
Bambade, P ;
Barao, F ;
Barbiellini, G ;
Barbier, R ;
Bardin, DY ;
Barker, C ;
Baroncelli, A ;
Battaglia, M ;
Baubillier, M ;
Becks, KH ;
Begalli, M ;
Behrmann, A ;
Beilliere, P ;
Belokopytov, Y ;
Belous, K ;
Benekos, NC ;
Benvenuti, AC ;
Berat, C ;
Berggren, M ;
Bertini, D ;
Bertrand, D ;
Besancon, M ;
Bianchi, F ;
Bigi, M ;
Bilenky, MS .
PHYSICS LETTERS B, 1999, 456 (2-4) :310-321
[7]   Measurements of the trilinear gauge boson couplings WWV (V ≡ γ,Z) in e+e- collisions at 183 GeV [J].
Abreu, P ;
Adam, W ;
Adye, T ;
Adzic, P ;
Ajinenko, I ;
Albrecht, Z ;
Alderweireld, T ;
Alekseev, GD ;
Alemany, R ;
Allmendinger, T ;
Allport, PP ;
Almehed, S ;
Amaldi, U ;
Amapane, N ;
Amato, S ;
Anassontzis, EG ;
Andersson, P ;
Andreazza, A ;
Andringa, S ;
Antilogus, P ;
Apel, WD ;
Arnoud, Y ;
Åsman, B ;
Augustin, JE ;
Augustinus, A ;
Baillon, P ;
Bambade, P ;
Barao, F ;
Barbiellini, G ;
Barbier, R ;
Bardin, DY ;
Barker, G ;
Baroncelli, A ;
Battaglia, M ;
Baubillier, M ;
Becks, KH ;
Begalli, M ;
Behrmann, A ;
Beilliere, P ;
Belokopytov, Y ;
Benekos, NC ;
Benvenuti, AC ;
Berat, C ;
Berggren, M ;
Bertini, D ;
Bertrand, D ;
Besancon, M ;
Bigi, M ;
Bilenky, MS ;
Bizouard, MA .
PHYSICS LETTERS B, 1999, 459 (1-3) :382-396
[8]   ANOMALOUS QUARTIC COUPLINGS IN W(+)W(-)GAMMA-PRODUCTION AT E(+)E(-) COLLIDERS [J].
ABULEIL, G ;
STIRLING, WJ .
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1995, 21 (04) :517-524
[9]   Measurements of mass, width and gauge couplings of the W boson at LEP [J].
Acciarri, M ;
Adriani, O ;
AguilarBenitez, M ;
Ahlen, S ;
Alcaraz, J ;
Alemanni, G ;
Allaby, J ;
Aloisio, A ;
Alverson, G ;
Alviggi, MG ;
Ambrosi, G ;
Anderhub, H ;
Andreev, VP ;
Angelescu, T ;
Anselmo, F ;
Arefiev, A ;
Azemoon, T ;
Aziz, T ;
Bagnaia, P ;
Baksay, L ;
Banerjee, S ;
Banerjee, S ;
Banicz, K ;
Barczyk, A ;
Barillere, R ;
Barone, L ;
Bartalini, P ;
Baschirotto, A ;
Basile, M ;
Battiston, R ;
Bay, A ;
Becattini, F ;
Becker, U ;
Behner, F ;
Berdugo, J ;
Berges, P ;
Bertucci, B ;
Betev, BL ;
Bhattacharya, S ;
Biasini, M ;
Biland, A ;
Bilei, GM ;
Blaising, JJ ;
Blyth, SC ;
Bobbink, GJ ;
Bock, R ;
Bohm, A ;
Boldizsar, L ;
Borgia, B ;
Bourilkov, D .
PHYSICS LETTERS B, 1997, 413 (1-2) :176-190
[10]   Measurement of W-pair cross sections in e+e- interactions at √s = 183 GeV and W-decay branching fractions [J].
Acciarri, M ;
Adriani, O ;
Aguilar-Benitez, M ;
Ahlen, S ;
Alcaraz, J ;
Alemanni, G ;
Allaby, J ;
Aloisio, A ;
Alviggi, MG ;
Ambrosi, G ;
Anderhub, H ;
Andreev, VP ;
Angelescu, T ;
Anselmo, F ;
Arefiev, A ;
Azemoon, T ;
Aziz, T ;
Bagnaia, P ;
Baksay, L ;
Banerjee, S ;
Banerjee, S ;
Banicz, K ;
Barczyk, A ;
Barillere, R ;
Barone, L ;
Bartalini, P ;
Baschirotto, A ;
Basile, M ;
Battiston, R ;
Bay, A ;
Becattini, F ;
Becker, U ;
Behner, F ;
Berdugo, J ;
Berges, P ;
Bertucci, B ;
Betev, BL ;
Bhattacharya, S ;
Biasini, I ;
Biland, A ;
Bilei, GM ;
Blaising, JJ ;
Blyth, SC ;
Bobbink, GJ ;
Bock, R ;
Bohm, A ;
Boldizsar, L ;
Borgia, B ;
Bourilkov, D ;
Bourquin, M .
PHYSICS LETTERS B, 1998, 436 (3-4) :437-452