Physicists at BaBar
Find 'Rebel' Particle
By Dr. David Whitehouse

Physicists have found a new subatomic particle, named Ds (2317). The announcement was made on Monday by physicist Antimo Palano to a packed auditorium at the Stanford Linear Accelerator Center (SLAC). "Congratulations to BaBar," added SLAC’s director, Jonathan Dorfan. "The existence of the particle is not a surprise, but its mass is lower than expected. This result will send theorists back to their drawing boards." And Bob Cahn, a BaBar collaborator from Berkeley Lab, added: "The unexpected mass will make us look again at the forces between quarks and will stimulate new interest in charm-quark systems."
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