Cancer treatment delays among cancer patients living with HIV during the COVID‐19 pandemic in the United States

Abstract Background The COVID‐19 pandemic led to care disruptions across the cancer continuum. It is unknown if immunosuppressed patients with cancer, who may be at higher risk for complications of SARS‐CoV‐2 infection, are disproportionately impacted. Thus, we aimed to compare delays in cancer treatment initiation between people living with HIV (PLWH) and cancer, the general cancer population (GCP), and patients with cancer and a history of solid organ transplant (SOT). Comparisons were made across the period 2 years preceding the pandemic versus the first year of the pandemic. Methods We used data from a real‐world electronic health record‐derived de‐identified database (2018–2021) comprised of US patients with cancer from 800 sites of care across the country. We included patients with 19 different cancer types. We calculated time to cancer treatment initiation (TTI) as the difference between the date of cancer diagnosis and the earliest date that cancer treatment was recorded. Results The sample included 181 PLWH, 65,073 GCP patients, and 195 patients with a SOT. Difference‐in‐difference regression models adjusted for age, sex, and presence of metastatic disease at cancer diagnosis revealed a significant increase in delayed TTI among PLWH compared to the GCP during COVID‐19 versus prior to COVID‐19, with delays increasing by approximately 1 month during the pandemic (DID: 32.6 days [8.9–56.3]; p = 0.007). The increase in TTI for PLWH was observed across treatment modalities, including surgery (DID: 55.1 [28.8–81.3], p < 0.001) and systemic therapy (DID: 30.4 [4.6–56.3], p = 0.021). Conclusions/Relevance PLWH experienced significant delays in cancer treatment initiation after diagnosis during the first year of COVID‐19, delays that may negatively impact cancer outcomes. These data warrant patient and provider attention as the pandemic continues to impact the US healthcare system

Measurement of D-s(+) and D-s(*+) production in B meson decays and from continuum e(+)e(-) annihilation at root s=10.6 GeV

New measurements of D-s(+) and D-s(*+) meson production rates from B decays and from q(q) over bar continuum events near the Y(4S) resonance are presented. Using 20.8 fb(-1) of data on the Y(4S) resonance and 2.6 fb(-1) off-resonance, we find the inclusive branching fractions B(B-->Ds+X) = (10.93+/-0.19+/-0.58+/-2.73)% and B(B-->Ds*+X) = (7.9+/-0.8+/-0.7+/-2.0)%, where the first error is statistical, the second is systematic, and the third is due to the D-s(+)-->phipi(+) branching fraction uncertainty. The production cross sections sigma(e(+)e(-)-->Ds+X)xB(D-s(+)-->phipi(+)) = 7.55+/-0.20+/-0.34 pb and sigma(e(+)e(-)-->Ds*+/-X)xB(D-s(+)-->phipi(+)) = 5.8+/-0.7+/-0.5 pb are measured at center-of-mass energies about 40 MeV below the Y(4S) mass. The branching fractions SigmaB(B-->D-s((*)+)(D) over bar ((*))) = (5.07+/-0.14+/-0.30+/-1.27)% and SigmaB(B-->D-s(*+)(D) over bar ((*))) = (4.1+/-0.2+/-0.4+/-1.0)% are determined from the D-s((*)+) momentum spectra. The mass difference m(D-s(+)) -m(D+) = 98.4+/-0.1+/-0.3 MeV/c(2) is also measured

Measurement of Ds+ and Ds*+ production in B meson decays and from continuum e+e- annihilation at √s=10.6 GeV

New measurements of Ds+ and Ds*+ meson production rates from B decays and from qq̅ continuum events near the Υ(4S) resonance are presented. Using 20.8 fb-1 of data on the Υ(4S) resonance and 2.6 fb-1 off-resonance, we find the inclusive branching fractions B(B⃗Ds+X)=(10.93±0.19±0.58±2.73)% and B(B⃗Ds*+X)=(7.9±0.8±0.7±2.0)%, where the first error is statistical, the second is systematic, and the third is due to the Ds+→φπ+ branching fraction uncertainty. The production cross sections σ(e+e-→Ds+X)×B(Ds+→φπ+)=7.55±0.20±0.34pb and σ(e+e-→Ds*±X)×B(Ds+→φπ+)=5.8±0.7±0.5pb are measured at center-of-mass energies about 40 MeV below the Υ(4S) mass. The branching fractions ΣB(B⃗Ds(*)+D(*))=(5.07±0.14±0.30±1.27)% and ΣB(B⃗Ds*+D(*))=(4.1±0.2±0.4±1.0)% are determined from the Ds(*)+ momentum spectra. The mass difference m(Ds+)-m(D+)=98.4±0.1±0.3MeV/c2 is also measured

Measurement of D+(s) and D*+(s) production in B meson decays and from continuum e+ e- annihilations at s**(1/2) = 10.6-GeV.

none622Bernard Aubert; D. Boutigny; J.M. Gaillard; A. Hicheur; Y. Karyotakis; J.P. Lees; P. Robbe; V. Tisserand; A. Palano; G.P. Chen; J.C. Chen; N.D. Qi; G. Rong; P. Wang; Y.S. Hz; G. Eigen; P.L. Reinertsen; B. Stugu; B. Abbott; G.S. Abrams; A.W. Borgland; A.B. Breon; David Nathan Brown; Janice Button-Shafer; R.N. Cahn; A.R. Clark; M.S. Gill; A.V. Gritsan; Y. Groysman; R.G. Jacobsen; R.W. Kadel; J. Kadyk; L.T. Kerth; S. Kluth; Yu.G. Kolomensky; J.F. Kral; C. LeClerc; M.E. Levi; T. Liu; G. Lynch; A.B. Meyer; M. Momayezi; P.J. Oddone; A. Perazzo; M. Pripstein; N.A. Roe; A. Romosan; M.T. Ronan; V.G. Shelkov; A.V. Telnov; W.A. Wenzel; P.G. Bright-Thomas; T.J. Harrison; C.M. Hawkes; D.J. Knowles; S.W. O'Neale; R.C. Penny; A.T. Watson; N.K Watson; T. Deppermann; K. Goetzen; H. Koch; J. Krug; M. Kunze; B. Lewandowski; K. Peters; H. Schmuecker; M. Steinke; J.C. Andress; N.R. Barlow; W. Bhimji; N. Chevalier; P.J. Clark; W.N. Cottingham; N. De Groot; N. Dyce; B. Foster; J.D. McFall; D. Wallom; F.F. Wilson; K. Abe; C. Hearty; T.S. Mattison; J.A. McKenna; D. Thiessen; S. Jolly; A.K. McKemey; Jane S. Tinslay; V.E. Blinov; A.D. Bukin; D.A. Bukin; A.R. Buzykaev; V.B. Golubev; V.N. Ivanchenko; A.A. Korol; E.A. Kravchenko; A.P. Onuchin; A.A. Salnikov; S.I. Serednyakov; Yu.I. Skovpen; Valery I. Telnov; A.N. Yushkov; D. Best; A.J. Lankford; M. Mandelkern; S. McMahon; D.P. Stoker; A. Ahsan; K. Arisaka; C. Buchanan; S. Chun; J.G. Branson; D.B. MacFarlane; Soeren A. Prell; S. Rahatlou; G. Raven; V. Sharma; C. Campagnari; B. Dahmes; P.A. Hart; N. Kuznetsova; S.L. Levy; O. Long; A. Lu; J.D. Richman; W. Verkerke; Michael S. Witherell; S. Yellin; J. Beringer; D.E. Dorfan; A.M. Eisner; A. Frey; A.A. Grillo; M. Grothe; C.A. Heusch; R.P. Johnson; W. Kroeger; William S. Lockman; T. Pulliam; H. Sadrozinski; T. Schalk; R.E. Schmitz; B.A. Schumm; A. Seiden; M. Turri; W. Walkowiak; D.C. Williams; M.G. Wison; E. Chen; G.P. Dubois-Felsmann; A. Dvoretskii; D.G. Hitlin; S. Metzler; J. Oyang; F.C. Porter; A. Ryd; A. Samuel; M. Weaver; S. Yang; R.Y. Zhu; S. Devmal; T.L. Geld; S. Jayatilleke; G. Mancinelli; B.T. Meadows; M.D. Sokoloff; T. Barillari; P. Bloom; M.O. Dima; S. Fahey; William T. Ford; D.R. Johnson; U. Nauenberg; A. Olivas; H. Park; P. Rankin; J. Roy; S. Sen; James G. Smith; W.C. van Hoek; D.L. Wagner; J. Blouw; John L. Harton; M. Krishnamurthy; A. Soffer; W.H. Toki; R.J. Wilson; J. Zhang; T. Brandt; J. Brose; T. Colberg; G. Dahlinger; M. Dickopp; R.S. Dubitzky; A. Hauke; E. Maly; R. Muller-Pfefferkorn; S. Otto; Klaus R. Schubert; R. Schwierz; B. Spaan; L. Wilden; L. Behr; Denis Bernard; 1; G.R. Bonneaud; F. Brochard; J. Cohen-Tanugi; S. Ferrag; E. Roussot; S. T'Jampens; C. Thiebaux; G. Vasileiadis; M. Verderi; A. Anjomshoaa; R. Bernet; A. Khan; D. Lavin; F. Muheim; S. Playfer; J.E. Swain; M. Falbo; C. Borean; C. Bozzi; S. Dittongo; M. Folegani; L. Piemontese; E. Treadwell; F. Anulli; R. Baldini-Ferroli; A. Calcaterra; R. de Sangro; D. Falciai; G. Finocchiaro; P. Patteri; I.M. Peruzzi; M. Piccolo; Y. Xie; A. Zallo; S. Bagnasco; A. Buzzo; R. Contri; G. Crosetti; P. Fabbricatore; S. Farinon; M. Lo Vetere; M. Macri; M.R. Monge; R. Musenich; M. Pallavicini; R. Parodi; S. Passaggio; F.C. Pastore; C. Patrignani; M.G. Pia; C. Priano; E. Robutti; A. Santroni; M. Morii; R. Bartoldus; T. Dignan; R. Hamilton; U. Mallik; J. Cochran; H.B. Crawley; P.A. Fischer; J. Lamsa; W.T. Meyer; E.I. Rosenberg; M. Benkebil; G. Grosdidier; C. Hast; Andreas Hocker; H.M. Lacker; S. Laplace; V. Lepeltier; A.M. Lutz; S. Plaszczynski; M.H. Schune; S. Trincaz-Duvoid; A. Valassi; G. Wormser; R.M. Bionta; V. Brigljevic; D.J. Lange; M. Mugge; X. Shi; K. van Bibber; T.J. Wenaus; D.M. Wright; C.R. Wuest; M. Carroll; J.R. Fry; E. Gabathuler; R. Gamet; M. George; M. Kay; D.J. Payne; R.J. Sloane; C. Touramanis; M.L. Aspinwall; D.A. Bowerman; Paul D. Dauncey; U. Egede; Ivo M. Gough Eschrich; N.J.W. Gunawardane; J.A. Nash; P. Sanders; D. Smith; D.E. Azzopardi; J.J. Back; P. Dixon; P.F. Harrison; R.J.L. Potter; H.W. Shorthouse; P. Strother; P.B. Vidal; M.I. Williams; G. Cowan; S. George; M.G. Green; A. Kurup; C.E. Marker; P. McGrath; T.R. McMahon; S. Ricciardi; F. Salvatore; I. Scott; G. Vaitsas; David Norvil Brown; C.L. Davis; John Allison; Roger J. Barlow; J.T. Boyd; A.C. Forti; J. Fullwood; F. Jackson; G.D. Lafferty; N. Savvas; E.T. Simopoulos; J.H. Weatherall; A. Farbin; A. Jawahery; V. Lillard; J. Olsen; D.A. Roberts; J.R. Schieck; G. Blaylock; C. Dallapiccola; K.T. Flood; Stanley S. Hertzbach; R. Kofler; T.B. Moore; H. Staengle; Stephane Willocq; B. Brau; R. Cowan; G. Sciolla; F. Taylor; R.K. Yamamoto; M. Milek; P.M. Patel; J. Trischuk; F. Lanni; F. Palombo; J.M. Bauer; M. Booke; L. Cremaldi; V. Eschenburg; R. Kroeger; J. Reidy; D.A. Sanders; D.J. Summers; J.P. Martin; J.Y. Nief; R. Seitz; P. Taras; A. Woch; V. Zacek; H. Nicholson; C.S. Sutton; C. Cartaro; N. Cavallo; G. De Nardo; F. Fabozzi; C. Gatto; L. Lista; P. Paolucci; D. Piccolo; C. Sciacca; J.M. LoSecco; J.R.G. Alsmiller; T.A. Gabriel; T. Handler; J. Brau; R. Frey; M. Iwasaki; N.B. Sinev; David M. Strom; F. Colecchia; F. Dal Corso; A. Dorigo; F. Galeazzi; M. Margoni; G. Michelon; M. Morandin; M. Posocco; M. Rotondo; F. Simonetto; R. Stroili; E. Torassa; C. Voci; Maurice Benayoun; H. Briand; J. Chauveau; P. David; C. de la Vaissiere; L. Del Buono; O. Hamon; F. Le Diberder; P Leruste; J. Lory; L. Roos; J. Stark; S. Versille; P. Manfredi; V. Re; V. Speziali; E.D. Frank; Larry D. Gladney; Q.H. Guo; J.H. Panetta; C. Angelini; G. Batignani; S. Bettarini; M. Bondioli; M. Carpinelli; F. Forti; M.A. Giorgi; A. Lusiani; F. Martinez-Vidal; M. Morganti; N. Neri; E. Paoloni; M. Rama; G. Rizzo; F. Sandrelli; G. Simi; G. Triggiani; J. Walsh; M. Haire; D. Judd; K. Paick; L. Turnbull; D.E. Wagoner; J. Albert; C. Bula; P. Elmer; C. Lu; K.T. McDonald; V. Miftakov; S.F. Schaffner; A.J.S. Smith; A. Tumanov; E.W. Varnes; G. Cavoto; D. del Re; R. Faccini; F. Ferrarotto; F. Ferroni; K. Fratini; E. Lamanna; Emanuele Leonardi; M.A. Mazzoni; Silvio Morganti; G. Piredda; F. Safai Tehrani; M. Serra; C. Voena; S. Christ; R. Waldi; P.F. Jacques; M. Kalelkar; R.J. Plano; T. Adye; B. Franek; N.I. Geddes; G.P. Gopal; S.M. Xella; R. Aleksan; G. De Domenico; S. Emery; A. Gaidot; S.F. Ganzhur; P.F. Giraud; W. Kozanecki; M. Langer; G.W. London; B. Mayer; B. Serfass; G. Vasseur; C. Yeche; M. Zito; N. Copty; M.V. Purohit; H. Singh; F.X. Yumiceva; I. Adam; P.L. Anthony; D. Aston; K. Baird; J.P. Berger; Elliott D. Bloom; A.M. Boyarski; F. Bulos; G. Calderini; R. Claus; M.R. Convery; D.P. Coupal; D.H. Coward; J. Dorfan; M. Doser; W. Dunwoodie; R.C. Field; T. Glanzman; G.L. Godfrey; S.J. Gowdy; P. Grosso; T. Himel; Tetiana Berger-Hryn'ova; M.E. Huffer; Walter R. Innes; C.P. Jessop; M.H. Kelsey; P. Kim; M.L. Kocian; Urs Langenegger; David W.G.S. Leith; S. Luitz; V. Luth; H.L. Lynch; H. Marsiske; S. Menke; R. Messner; K.C. Moffeit; R. Mount; D.R. Muller; C.P. O'Grady; M. Perl; S. Petrak; Helen R. Quinn; B.N. Ratcliff; S.H. Robertson; L.S. Rochester; A. Roodman; T. Schietinger; R.H. Schindler; J. Schwiening; V.V. Serbo; A. Snyder; A. Soha; S.M. Spanier; J. Stelzer; D. Su; M.K. Sullivan; H.A. Tanaka; J. Va'vra; S.R. Wagner; A.J.R. Weinstein; William J. Wisniewski; D.H. Wright; C.C. Young; P.R. Burchat; C.H. Cheng; David P. Kirkby; T.I. Meyer; C. Roat; R. Henderson; W. Bugg; H. Cohn; A.W. Weidemann; J.M. Izen; I. Kitayama; X.C. Lou; m. Turcotte; F. Bianchi; Marcella Bona; B. Di Girolamo; D. Gamba; A. Smol; D. Zanin; L. Bosisio; G. Della Ricca; L. Lanceri; A. Pompili; P. Poropat; M. Prest; E. Vallazza; G. Vuagnin; R.S. Panvini; C. Brown; Asoka S. De Silva; Robert V. Kowalewski; J.M. Roney; H.R. Band; E. Charles; S. Dasu; F. Di Lodovico; A.M. Eichenbaum; H. Hu; J.R. Johnson; R. Liu; J. Nielsen; Y. Pan; R. Prepost; I.J. Scott; J.H. von Wimmersperg-Toeller; S.L. Wu; Z. Yu; H. Zobernig; T.M.B. Kordich; H. NealBernard, Aubert; D., Boutigny; J. M., Gaillard; A., Hicheur; Y., Karyotakis; J. P., Lees; P., Robbe; V., Tisserand; A., Palano; G. P., Chen; J. C., Chen; N. D., Qi; G., Rong; P., Wang; Y. S., Hz; G., Eigen; P. L., Reinertsen; B., Stugu; B., Abbott; G. S., Abrams; A. W., Borgland; A. B., Breon; David Nathan, Brown; Janice Button, Shafer; R. N., Cahn; A. R., Clark; M. S., Gill; A. V., Gritsan; Y., Groysman; R. G., Jacobsen; R. W., Kadel; J., Kadyk; L. T., Kerth; S., Kluth; Kolomensky, Y. u. G.; J. F., Kral; C., Leclerc; M. E., Levi; T., Liu; G., Lynch; A. B., Meyer; M., Momayezi; P. J., Oddone; A., Perazzo; M., Pripstein; N. A., Roe; A., Romosan; M. T., Ronan; V. G., Shelkov; A. V., Telnov; W. A., Wenzel; P. G., Bright Thomas; T. J., Harrison; C. M., Hawkes; D. J., Knowles; S. W., O'Neale; R. C., Penny; A. T., Watson; N. K., Watson; T., Deppermann; K., Goetzen; H., Koch; J., Krug; M., Kunze; B., Lewandowski; K., Peters; H., Schmuecker; M., Steinke; J. C., Andress; N. R., Barlow; W., Bhimji; N., Chevalier; P. J., Clark; W. N., Cottingham; N., De Groot; N., Dyce; B., Foster; J. D., Mcfall; D., Wallom; F. F., Wilson; K., Abe; C., Hearty; T. S., Mattison; J. A., Mckenna; D., Thiessen; S., Jolly; A. K., Mckemey; Jane S., Tinslay; V. E., Blinov; A. D., Bukin; D. A., Bukin; A. R., Buzykaev; V. B., Golubev; V. N., Ivanchenko; A. A., Korol; E. A., Kravchenko; A. P., Onuchin; A. A., Salnikov; S. I., Serednyakov; Skovpen, Y. u. I.; Valery I., Telnov; A. N., Yushkov; D., Best; A. J., Lankford; M., Mandelkern; S., Mcmahon; D. P., Stoker; A., Ahsan; K., Arisaka; C., Buchanan; S., Chun; J. G., Branson; D. B., Macfarlane; Soeren A., Prell; S., Rahatlou; G., Raven; V., Sharma; C., Campagnari; B., Dahmes; P. A., Hart; N., Kuznetsova; S. L., Levy; O., Long; A., Lu; J. D., Richman; W., Verkerke; Michael S., Witherell; S., Yellin; J., Beringer; D. E., Dorfan; A. M., Eisner; A., Frey; A. A., Grillo; M., Grothe; C. A., Heusch; R. P., Johnson; W., Kroeger; William S., Lockman; T., Pulliam; H., Sadrozinski; T., Schalk; R. E., Schmitz; B. A., Schumm; A., Seiden; M., Turri; W., Walkowiak; D. C., Williams; M. G., Wison; E., Chen; G. P., Dubois Felsmann; A., Dvoretskii; D. G., Hitlin; S., Metzler; J., Oyang; F. C., Porter; A., Ryd; A., Samuel; M., Weaver; S., Yang; R. Y., Zhu; S., Devmal; T. L., Geld; S., Jayatilleke; G., Mancinelli; B. T., Meadows; M. D., Sokoloff; T., Barillari; P., Bloom; M. O., Dima; S., Fahey; William T., Ford; D. R., Johnson; U., Nauenberg; A., Olivas; H., Park; P., Rankin; J., Roy; S., Sen; James G., Smith; W. C., van Hoek; D. L., Wagner; J., Blouw; John L., Harton; M., Krishnamurthy; A., Soffer; W. H., Toki; R. J., Wilson; J., Zhang; T., Brandt; J., Brose; T., Colberg; G., Dahlinger; M., Dickopp; R. S., Dubitzky; A., Hauke; E., Maly; R., Muller Pfefferkorn; S., Otto; Klaus R., Schubert; R., Schwierz; B., Spaan; L., Wilden; L., Behr; Denis, Bernard; 1, ; G. R., Bonneaud; F., Brochard; J., Cohen Tanugi; S., Ferrag; E., Roussot; S., T'Jampens; C., Thiebaux; G., Vasileiadis; M., Verderi; A., Anjomshoaa; R., Bernet; A., Khan; D., Lavin; F., Muheim; S., Playfer; J. E., Swain; M., Falbo; C., Borean; C., Bozzi; S., Dittongo; M., Folegani; L., Piemontese; E., Treadwell; F., Anulli; R., Baldini Ferroli; A., Calcaterra; R., de Sangro; D., Falciai; G., Finocchiaro; P., Patteri; I. M., Peruzzi; M., Piccolo; Y., Xie; A., Zallo; S., Bagnasco; A., Buzzo; Contri, Roberto; G., Crosetti; P., Fabbricatore; S., Farinon; LO VETERE, Maurizio; M., Macri; Monge, MARIA ROBERTA; R., Musenich; Pallavicini, Marco; R., Parodi; S., Passaggio; F. C., Pastore; Patrignani, Claudia; M. G., Pia; C., Priano; E., Robutti; Santroni, Alberto; M., Morii; R., Bartoldus; T., Dignan; R., Hamilton; U., Mallik; J., Cochran; H. B., Crawley; P. A., Fischer; J., Lamsa; W. T., Meyer; E. I., Rosenberg; M., Benkebil; G., Grosdidier; C., Hast; Andreas, Hocker; H. M., Lacker; S., Laplace; V., Lepeltier; A. M., Lutz; S., Plaszczynski; M. H., Schune; S., Trincaz Duvoid; A., Valassi; G., Wormser; R. M., Bionta; V., Brigljevic; D. J., Lange; M., Mugge; X., Shi; K., van Bibber; T. J., Wenaus; D. M., Wright; C. R., Wuest; M., Carroll; J. R., Fry; E., Gabathuler; R., Gamet; M., George; M., Kay; D. J., Payne; R. J., Sloane; C., Touramanis; M. L., Aspinwall; D. A., Bowerman; Paul D., Dauncey; U., Egede; Ivo M., Gough Eschrich; N. J. W., Gunawardane; J. A., Nash; P., Sanders; D., Smith; D. E., Azzopardi; J. J., Back; P., Dixon; P. F., Harrison; R. J. L., Potter; H. W., Shorthouse; P., Strother; P. B., Vidal; M. I., Williams; G., Cowan; S., George; M. G., Green; A., Kurup; C. E., Marker; P., Mcgrath; T. R., Mcmahon; S., Ricciardi; F., Salvatore; I., Scott; G., Vaitsas; David Norvil, Brown; C. L., Davis; John, Allison; Roger J., Barlow; J. T., Boyd; A. C., Forti; J., Fullwood; F., Jackson; G. D., Lafferty; N., Savvas; E. T., Simopoulos; J. H., Weatherall; A., Farbin; A., Jawahery; V., Lillard; J., Olsen; D. A., Roberts; J. R., Schieck; G., Blaylock; C., Dallapiccola; K. T., Flood; Stanley S., Hertzbach; R., Kofler; T. B., Moore; H., Staengle; Stephane, Willocq; B., Brau; R., Cowan; G., Sciolla; F., Taylor; R. K., Yamamoto; M., Milek; P. M., Patel; J., Trischuk; F., Lanni; F., Palombo; J. M., Bauer; M., Booke; L., Cremaldi; V., Eschenburg; R., Kroeger; J., Reidy; D. A., Sanders; D. J., Summers; J. P., Martin; J. Y., Nief; R., Seitz; P., Taras; A., Woch; V., Zacek; H., Nicholson; C. S., Sutton; C., Cartaro; N., Cavallo; G., De Nardo; F., Fabozzi; C., Gatto; L., Lista; P., Paolucci; D., Piccolo; C., Sciacca; J. M., Losecco; J. R. G., Alsmiller; T. A., Gabriel; T., Handler; J., Brau; R., Frey; M., Iwasaki; N. B., Sinev; David M., Strom; F., Colecchia; F., Dal Corso; A., Dorigo; F., Galeazzi; M., Margoni; G., Michelon; M., Morandin; M., Posocco; M., Rotondo; F., Simonetto; R., Stroili; E., Torassa; C., Voci; Maurice, Benayoun; H., Briand; J., Chauveau; P., David; C., de la Vaissiere; L., Del Buono; O., Hamon; F., Le Diberder; P., Leruste; J., Lory; L., Roos; J., Stark; S., Versille; P., Manfredi; V., Re; V., Speziali; E. D., Frank; Larry D., Gladney; Q. H., Guo; J. H., Panetta; C., Angelini; G., Batignani; S., Bettarini; M., Bondioli; M., Carpinelli; F., Forti; M. A., Giorgi; A., Lusiani; F., Martinez Vidal; M., Morganti; N., Neri; E., Paoloni; M., Rama; G., Rizzo; F., Sandrelli; G., Simi; G., Triggiani; J., Walsh; M., Haire; D., Judd; K., Paick; L., Turnbull; D. E., Wagoner; J., Albert; C., Bula; P., Elmer; C., Lu; K. T., Mcdonald; V., Miftakov; S. F., Schaffner; A. J. S., Smith; A., Tumanov; E. 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Measurement of the CP violating asymmetry amplitude sin 2beta

We present results on time-dependent CP-violating asymmetries in neutral B decays to several CP eigenstates. The measurements use a data sample of about 88 million Y(4S) --> B Bbar decays collected between 1999 and 2002 with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We study events in which one neutral B meson is fully reconstructed in a final state containing a charmonium meson and the other B meson is determined to be either a B0 or B0bar from its decay products. The amplitude of the CP-violating asymmetry, which in the Standard Model is proportional to sin2beta, is derived from the decay-time distributions in such events. We measure sin2beta = 0.741 +/- 0.067 (stat) +/- 0.034 (syst) and |lambda| = 0.948 +/- 0.051 (stat) +/- 0.030 (syst). The magnitude of lambda is consistent with unity, in agreement with the Standard Model expectation of no direct CP violation in these modes.Comment: 7 pages, 2 postscript figures, submitted to PR