Direct measurement of the W boson width in p(p)over-bar collisions at √s=1.8 TeV

被引：21

作者：

Affolder, T ^{[1
]}

Akimoto, H

Akopian, A

Albrow, MG

Amaral, P

Amendolia, SR

Amidei, D

Anikeev, K

Antos, J

Apollinari, G

Arisawa, T

Asakawa, T

Ashmanskas, W

Atac, M

Azfar, F

Azzi-Bacchetta, P

Bacchetta, N

Bailey, MW

Bailey, S

de Barbaro, P

Barbaro-Galtieri, A

Barnes, VE

Barnett, BA

Barone, M

Bauer, G

Bedeschi, F

Belforte, S

Bellettini, G

Bellinger, J

Benjamin, D

Bensinger, J

Beretvas, A

Berge, JP

Berryhill, J

Bevensee, B

Bhatti, A

Binkley, M

Bisello, D

Blair, RE

Blocker, C

Bloom, K

Blumenfeld, B

Blusk, SR

Bocci, A

Bodek, A

Bokhari, W

Bolla, G

Bonushkin, Y

Bortoletto, D

Boudreau, J

机构：

[1] Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[2] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

[3] Argonne Natl Lab, Argonne, IL 60439 USA

[4] Univ Bologna, Ist Nazl Fis Nucl, I-40127 Bologna, Italy

[5] Brandeis Univ, Waltham, MA 02254 USA

[6] Univ Calif Los Angeles, Los Angeles, CA 90024 USA

[7] Univ Cantabria, CSIC, Inst Fis Cantabria, E-39005 Santander, Spain

[8] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[9] Joint Inst Nucl Res, RU-141980 Dubna, Russia

[10] Duke Univ, Durham, NC 27708 USA

[11] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[12] Univ Florida, Gainesville, FL 32611 USA

[13] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[14] Univ Geneva, CH-1211 Geneva 4, Switzerland

[15] Harvard Univ, Cambridge, MA 02138 USA

[16] Hiroshima Univ, Higashihiroshima 724, Japan

[17] Univ Illinois, Urbana, IL 61801 USA

[18] Johns Hopkins Univ, Baltimore, MD 21218 USA

[19] Univ Karlsruhe, Inst Expt Kernphys, D-76128 Karlsruhe, Germany

[20] Kyungpook Natl Univ, Korean Hadron Collider Lab, Taegu 702701, South Korea

[21] Seoul Natl Univ, Seoul 151742, South Korea

[22] Sungkyunkwan Univ, Suwon 440746, South Korea

[23] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 305, Japan

[24] MIT, Cambridge, MA 02139 USA

[25] McGill Univ, Inst Particle Phys, Montreal, PQ H3A 2T8, Canada

[26] Univ Toronto, Toronto, ON M5S 1A7, Canada

[27] Univ Michigan, Ann Arbor, MI 48109 USA

[28] Michigan State Univ, E Lansing, MI 48824 USA

[29] Univ New Mexico, Albuquerque, NM 87131 USA

[30] Ohio State Univ, Columbus, OH 43210 USA

[31] Osaka City Univ, Osaka 588, Japan

[32] Univ Oxford, Oxford OX1 3RH, England

[33] Univ Padua, Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

[34] Univ Penn, Philadelphia, PA 19104 USA

[35] Univ Pisa, Ist Nazl Fis Nucl, I-56100 Pisa, Italy

[36] Scuola Normale Super Pisa, I-56100 Pisa, Italy

[37] Univ Pittsburgh, Pittsburgh, PA 15260 USA

[38] Purdue Univ, W Lafayette, IN 47907 USA

[39] Univ Rochester, Rochester, NY 14627 USA

[40] Rockefeller Univ, New York, NY 10021 USA

[41] Rutgers State Univ, Piscataway, NJ 08855 USA

[42] Texas A&M Univ, College Stn, TX 77843 USA

[43] Texas Tech Univ, Lubbock, TX 79409 USA

[44] Univ Trieste, Ist Nazl Fis Nucl, Udine, Italy

[45] Univ Tsukuba, Tsukuba, Ibaraki 305, Japan

[46] Tufts Univ, Medford, MA 02155 USA

[47] Waseda Univ, Tokyo 169, Japan

[48] Univ Wisconsin, Madison, WI 53706 USA

[49] Yale Univ, New Haven, CT 06520 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.85.3347

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This Letter describes a direct measurement of the W boson total decay width, Gamma(W), using the Collider Detector at Fermilab. The measurement uses an integrated luminosity of 90 pb-L, collected during the 1994-1995 run of the Fermilab Tevatron pr collider. The width is determined by normalizing predicted signal and background distributions to 49 843 W --> ev candidates and 21 806 W --> mu nu candidates in the transverse-mass region M-T < 200 GeV and then fitting the predicted shape to the 438 electron events and 196 muon events in the high-M-T region, 100 < M-T < 200 GeV. The result is Gamma(W) = 2.04 +/- 0.11(stat) +/- 0.09(syst) GeV.

引用

页码：3347 / 3352

页数：6

共 20 条

[1]

ABBANEO D, CERNEP9915 LEP EL WO

[2] Measurement of the W mass and width in e+e- collisions at 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 .

PHYSICS LETTERS B, 1999, 453 (1-2) :138-152

[3]

Abbott B, 2000, PHYS REV D, V61, DOI 10.1103/PhysRevD.61.072001

[4] THE CDF DETECTOR - AN OVERVIEW [J].

ABE, F ;

AMIDEI, D ;

APOLLINARI, G ;

ASCOLI, G ;

ATAC, M ;

AUCHINCLOSS, P ;

BADEN, AR ;

BARBAROGALTIERI, A ;

BARNES, VE ;

BARSOTTI, E ;

BEDESCHI, F ;

BELFORTE, S ;

BELLETTINI, G ;

BELLINGER, J ;

BENSINGER, J ;

BERETVAS, A ;

BERGE, P ;

BERTOLUCCI, S ;

BHADRA, S ;

BINKLEY, M ;

BLAIR, R ;

BLOCKER, C ;

BOFILL, J ;

BOOTH, AW ;

BRANDENBURG, G ;

BRENNER, A ;

BROWN, D ;

BYON, A ;

BYRUM, KL ;

CAMPBELL, M ;

CAREY, R ;

CARITHERS, W ;

CARLSMITH, D ;

CARROLL, JT ;

CASHMORE, R ;

CERVELLI, F ;

CHADWICK, K ;

CHAPIN, T ;

CHIARELLI, G ;

CHINOWSKY, W ;

CIHANGIR, S ;

CLINE, D ;

CONNOR, D ;

CONTRERAS, M ;

COOPER, J ;

CORDELLI, M ;

CURATOLO, M ;

DAY, C ;

DELFABBRO, R ;

DELLORSO, M .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1988, 271 (03) :387-403

[5] MEASUREMENT OF ATOMIC MOTION IN A STANDING LIGHT-FIELD BY HOMODYNE DETECTION [J].

QUADT, R ;

COLLETT, M ;

WALLS, DF .

PHYSICAL REVIEW LETTERS, 1995, 74 (03) :351-354

[6]

ABE F, HEPEX0007044

[7]

ABREU P, CERNEP9979

[8] Measurement of mass and width of the W boson at LEP [J].

Acciarri, M ;

Achard, P ;

Adriani, O ;

Aguilar-Benitez, M ;

Alcaraz, J ;

Alemanmi, 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 ;

Balandras, A ;

Ball, RC ;

Banerjee, S ;

Banicz, K ;

Barczyk, A ;

Barillère, R ;

Barone, L ;

Bartalini, P ;

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 ;

Blaising, JJ ;

Blyth, SC ;

Bobbink, GJ ;

Böhm, A ;

Boldizsar, L ;

Borgia, B ;

Bourilkov, D ;

Bourquin, M ;

Braccini, S .

PHYSICS LETTERS B, 1999, 454 (3-4) :386-398

[9]

ASHMANSKAS WJ, 1998, THESIS UC BERKELEY

[10] PHOTOS - A UNIVERSAL MONTE-CARLO FOR QED RADIATIVE-CORRECTIONS - VERSION 2.0 [J].

BARBERIO, E ;

WAS, Z .

COMPUTER PHYSICS COMMUNICATIONS, 1994, 79 (02) :291-308

← 1 2 →