Real-time transverse momentum discriminator for the BaBar level 1 trigger system

A. Berenyi; H. K. Chen; K. Dao; S. F. Dow; S. K. Gehrig; M. S. Gill; C. Grace; R. C. Jared; J. K. Johnson; A. Karcher; D. Kasen; F. A. Kirsten; J. F. Kral; C. M. LeClerc; M. E. Levi; al et al

Real-time transverse momentum discriminator for the BaBar level 1 trigger system

A. Berenyi, H. K. Chen, K. Dao, S. F. Dow, S. K. Gehrig, M. S. Gill, C. Grace, R. C. Jared, J. K. Johnson, A. Karcher, D. Kasen, F. A. Kirsten, J. F. Kral, C. M. LeClerc, M. E. Levi, al et al

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The Transverse Momentum Discriminator Module (PTDM) is one of the three main modules used in the Level 1 Charged Particle Trigger System of the BaBar Detector at PEP-II. It provides trigger decisions for charged particles with a transverse momentum, P_t, greater than a configurable threshold. The transverse momentum discrimination algorithm works by evaluating the curvature of the charged tracks in the 1.5 T axial magnetic field. The capabilities of the PTDM are key to a stable and efficient operation of the BaBar experiment even under severe background conditions. A sharp threshold behavior with an efficiency rise from 10% to 90% within 30 MeV/c at 600 MeV/c is achieved by using track segment information with very good spatial resolution (0.7 mm). This resolution is obtained by using the drift time information from the drift chamber. In this paper the design and implementation of the PTDM are described.

Original language	English (US)
Title of host publication	IEEE Nuclear Science Symposium and Medical Imaging Conference
Publisher	IEEE
Pages	988-992
Number of pages	5
ISBN (Print)	0780350227
State	Published - 1999
Externally published	Yes
Event	Proceedings of the 1998 IEEE Nuclear Science Symposium Conference Record - Toronto, Que, Can Duration: Nov 8 1998 → Nov 14 1998

Publication series

Name	IEEE Nuclear Science Symposium and Medical Imaging Conference
Volume	2

Other

Other	Proceedings of the 1998 IEEE Nuclear Science Symposium Conference Record
City	Toronto, Que, Can
Period	11/8/98 → 11/14/98

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Berenyi, A., Chen, H. K., Dao, K., Dow, S. F., Gehrig, S. K., Gill, M. S., Grace, C., Jared, R. C., Johnson, J. K., Karcher, A., Kasen, D., Kirsten, F. A., Kral, J. F., LeClerc, C. M., Levi, M. E., & et al, A. (1999). Real-time transverse momentum discriminator for the BaBar level 1 trigger system. In IEEE Nuclear Science Symposium and Medical Imaging Conference (pp. 988-992). (IEEE Nuclear Science Symposium and Medical Imaging Conference; Vol. 2). IEEE.

Real-time transverse momentum discriminator for the BaBar level 1 trigger system. / Berenyi, A.; Chen, H. K.; Dao, K. et al.
IEEE Nuclear Science Symposium and Medical Imaging Conference. IEEE, 1999. p. 988-992 (IEEE Nuclear Science Symposium and Medical Imaging Conference; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Berenyi, A, Chen, HK, Dao, K, Dow, SF, Gehrig, SK, Gill, MS, Grace, C, Jared, RC, Johnson, JK, Karcher, A, Kasen, D, Kirsten, FA, Kral, JF, LeClerc, CM, Levi, ME & et al, A 1999, Real-time transverse momentum discriminator for the BaBar level 1 trigger system. in IEEE Nuclear Science Symposium and Medical Imaging Conference. IEEE Nuclear Science Symposium and Medical Imaging Conference, vol. 2, IEEE, pp. 988-992, Proceedings of the 1998 IEEE Nuclear Science Symposium Conference Record, Toronto, Que, Can, 11/8/98.

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abstract = "The Transverse Momentum Discriminator Module (PTDM) is one of the three main modules used in the Level 1 Charged Particle Trigger System of the BaBar Detector at PEP-II. It provides trigger decisions for charged particles with a transverse momentum, Pt, greater than a configurable threshold. The transverse momentum discrimination algorithm works by evaluating the curvature of the charged tracks in the 1.5 T axial magnetic field. The capabilities of the PTDM are key to a stable and efficient operation of the BaBar experiment even under severe background conditions. A sharp threshold behavior with an efficiency rise from 10% to 90% within 30 MeV/c at 600 MeV/c is achieved by using track segment information with very good spatial resolution (0.7 mm). This resolution is obtained by using the drift time information from the drift chamber. In this paper the design and implementation of the PTDM are described.",

author = "A. Berenyi and Chen, {H. K.} and K. Dao and Dow, {S. F.} and Gehrig, {S. K.} and Gill, {M. S.} and C. Grace and Jared, {R. C.} and Johnson, {J. K.} and A. Karcher and D. Kasen and Kirsten, {F. A.} and Kral, {J. F.} and LeClerc, {C. M.} and Levi, {M. E.} and {et al}, al",

year = "1999",

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AU - Dow, S. F.

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AU - Gill, M. S.

AU - Grace, C.

AU - Jared, R. C.

AU - Johnson, J. K.

AU - Karcher, A.

AU - Kasen, D.

AU - Kirsten, F. A.

AU - Kral, J. F.

AU - LeClerc, C. M.

AU - Levi, M. E.

AU - et al, al

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N2 - The Transverse Momentum Discriminator Module (PTDM) is one of the three main modules used in the Level 1 Charged Particle Trigger System of the BaBar Detector at PEP-II. It provides trigger decisions for charged particles with a transverse momentum, Pt, greater than a configurable threshold. The transverse momentum discrimination algorithm works by evaluating the curvature of the charged tracks in the 1.5 T axial magnetic field. The capabilities of the PTDM are key to a stable and efficient operation of the BaBar experiment even under severe background conditions. A sharp threshold behavior with an efficiency rise from 10% to 90% within 30 MeV/c at 600 MeV/c is achieved by using track segment information with very good spatial resolution (0.7 mm). This resolution is obtained by using the drift time information from the drift chamber. In this paper the design and implementation of the PTDM are described.

AB - The Transverse Momentum Discriminator Module (PTDM) is one of the three main modules used in the Level 1 Charged Particle Trigger System of the BaBar Detector at PEP-II. It provides trigger decisions for charged particles with a transverse momentum, Pt, greater than a configurable threshold. The transverse momentum discrimination algorithm works by evaluating the curvature of the charged tracks in the 1.5 T axial magnetic field. The capabilities of the PTDM are key to a stable and efficient operation of the BaBar experiment even under severe background conditions. A sharp threshold behavior with an efficiency rise from 10% to 90% within 30 MeV/c at 600 MeV/c is achieved by using track segment information with very good spatial resolution (0.7 mm). This resolution is obtained by using the drift time information from the drift chamber. In this paper the design and implementation of the PTDM are described.

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PB - IEEE

T2 - Proceedings of the 1998 IEEE Nuclear Science Symposium Conference Record

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ER -

Real-time transverse momentum discriminator for the BaBar level 1 trigger system

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